6th International Reliability and Safety Engineering Conference
z 1 17 – 18 February 2021 Shiraz University - Iran th 6 International Reliability Conference program and Safety Engineering Conference
Time DAY 1: Feb 17 (Wednesday)
8:00-9:00 Registration 9:00-9: 05
9:05-9:15 Opening 9:00 - 9:40 9:15-9:20 9:20-9:40 9:40-10:00 Break
Keynote 1 (Prof. Diego Galar) 10:00:11:00
11:00-12:00 Keynote 2 (Prof. Enrico Zio)
12:00-13:30 Lunch 12:00-13:30
Shiraz Hafez Saadi Eram Panel Poster1 Poster2 Room Room Room Room 2
Keynote 5
Prof.
Sumer
Nuc2
Civ2
Civ1 PSA Enviro -
-
13:30-15:30 1
-
Nuc1 Civ1
Nuc
Oil Oil & Gas
(shiraz1) (hafez1) (saadi1) (eram1) (Poster1-1) (Poster2-1)
15:30-16:00 Break
Nuc4
HSE1
-
Nuc2 Civ2 RCM Energy -
Nuc3
Civ3
16:00-18:20
Oil Oil & Gas
(shiraz2) (hafez2) (saadi2) (eram2) (Poster1-2) (Poster2-2)
1 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Conference program
DAY 2: Feb 18 (Thursday) Time 8:00- 9:00 Keynote 3 (Prof. Pourgolmohammad) Panel3
Electrica 9:00- Keynote 4 (Prof. Bilal Ayyob) l 9:40 Network 9:40- Break 10:00 Shiraz Hafez Saadi Eram Poster1 Poster2 Panel3 Room Room Room Room
Nuc3 Civ3 Rel1 HSE
ENR
HSE3
- 10:00- - 12:20
Nuc5
HSE2
(shiraz3) (hafez3) (saadi3) (eram3) (Poster1-3) (Poster2-3)
Electrical Network
12:00- Lunch 12:00-13:30 13:30
Panel4
Rel2 & RM
IT
- Nuc4 Aero HSE - 13:30- HF
15:30 Rel
Math Health & Medical (shiraz4) (hafez4) (saadi4) (eram4) (Poster1-4) (Poster2-4) 15:30- Break 16:00
Other IT RM
16:00- Oth
Aero 17:20
(shiraz5) (hafez5) (saadi5) (eram5) (Poster1-5) (Poster2-5) Health & Medical
17:30- CLOSING 18:30
2 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Links of the Conf. Rooms
Shiraz Rooms Hafez Rooms https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/h 20/shiraz1 afez1 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/h 20/shiraz2 afez2 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/h 20/shiraz3 afez3 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/h 20/shiraz4 afez4 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/h 20/shiraz5 afez5
Saadi Rooms Eram Rooms https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/e 20/saadi1 ram1 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/e 20/saadi2 ram2 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/e 20/saadi3 ram3 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/e 20/saadi4 ram4 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/e 20/saadi5 ram5
Poster Room 1 Poster Room 2 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/p 20/poster1-1 oster2-1 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/p 20/poster1-2 oster2-2 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/p 20/poster1-3 oster2-3 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/p 20/poster1-4 oster2-4 https://www.skyroom.online/ch/irsec20 https://www.skyroom.online/ch/irsec2020/p 20/poster1-5 oster2-5
Tuesday Workshops Panel Room W1https://www.skyroom.online/ch/ir https://www.skyroom.online/ch/irsec2020/p sec2020/shiraz6 anel1 W2https://www.skyroom.online/ch/ir https://www.skyroom.online/ch/irsec2020/p sec2020/hafez6 anel2 W3https://www.skyroom.online/ch/ir https://www.skyroom.online/ch/irsec2020/p sec2020/saadi6 anel3 W4https://www.skyroom.online/ch/ir https://www.skyroom.online/ch/irsec2020/p sec2020/eram6 anel4
Friday Workshops Friday Workshops W5https://www.skyroom.online/ch/ir W7https://www.skyroom.online/ch/i sec2020/shiraz7 rsec2020/saadi7 W6https://www.skyroom.online/ch/ir W8https://www.skyroom.online/ch/irsec2020/eram7 sec2020/hafez7 W9https://www.skyroom.online/ch/irsec2020/poster1 -6
3 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
IRSEC 2020 CONFERENCE BOARD
Conference President:
Dr. Sirus Javadpour (Shiraz University)
Conference Chair:
Dr. Mohammad Reza Nematollahi (Shiraz University)
Conference Scientific Chair:
Dr. Ahmad Pirouzmand (Shiraz University)
Conference Executive Chair:
Dr. Kamal Hadad (Shiraz University)
4 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Conference Sponsors
5 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Conference Sponsors
کد اختصاصی: 99200-39173
6 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
CONTENTS
COMMITTEES 8
KEYNOTE SPEAKERS 14
PROGRAM 25
ABSTRACTS 54
WORKSHOPS 213
PANELS 215
7 17 – 18 February 2021 Shiraz University - Iran th 6 International Reliability Committees and Safety Engineering Conference
Scientific Committee
Dr. Fazlollah Adibnia (Yazd University) Dr. Alireza Ahmadi (Luleå University of Technology) Dr. Masoud Ahmadi (Atomic Energy Organization of Iran) Dr. Masoud Amin Mozaffari (Atomic Energy Organization of Iran) Dr. Seyed Mehrab Amiri (Shiraz University) Dr. GholamReza Ansarifard (University of Isfahan) Dr. Navid Ayoobian (University of Isfahan) Dr. Mohammad Hosein Bagheripour (Shahid Bahonar University of Kerman) Dr. Mahmood Reza Banan (Shiraz University) Dr. Behrooz Behnam (Amirkabir University of Technology) Dr. Mehdi Behzad (Sharif University of Technology) Dr. Farshad Faghihi (Shiraz University) Dr. Reza Faghihi (Shiraz University) Dr. Ebrahim Farjah (Shiraz University) Dr. MohammadAli Farsi (Aerospace Research Institute) Dr. Seyed Ahmad Fazelzadeh Haghighi (Shiraz University) Dr. Mahmood Fotuhi Firoozabad (Sharif University of Technology) Dr. Behnam Ghavami (Shahid Bahonar University of Kerman) Dr. Fazel Ghazi Ardekani (Atomic Energy Organization of Iran) Dr. Jafar Gheidar-Kheljani (Malek-e-Ashtar University of Technology) Dr. Behzad Ghodrati (Luleå University of Technology) Dr. Mohammad Bagher Ghofrani (Sharif University of Technology) Dr. Saeed Givehchi (Tehran University) Dr. Kamal Hadad (Shiraz University) Dr. Mohammad Ali Hadianfard (Shiraz University of Technology) Dr. Firoozeh Haghighi (University of Tehran) Dr. Mohammad Rahim Hematiyan (Shiraz University) Dr. Seyed Mahmood Hosseini (Ferdowsi University of Mashhad) Dr. Khosrow Jafarpur (Shiraz University) Dr. Mehdi Jahangiri (Shiraz University of Medical Sciences) Dr. Sirus Javadpour (Shiraz University) Dr. Mehdi Javidi (Shiraz University) Dr. Ali Johari (Shiraz University of Technology) Dr. Mahdi Karbasian (Malek-e-Ashtar University of Technology) Dr. Maryam Kargarrazi (Islamic Azad University, North Tehran Branch) Dr. Ayoub Karimi Jashni (Shiraz University) Dr. Ali Mahani (Shahid Bahonar University of Kerman) Dr. Aref Majdara (Michigan Technological University) Dr. Abdolhamid Minuchehr (Shahid Beheshti University of Tehran) Dr. Seyed Mohammad Mirvakili (Atomic Energy Organization of Iran) Dr. Iraj Mohammadfam (Hamedan University of Medical Sciences) Dr. Javad Mokhtari (Atomic Energy Organization of Iran)
8 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
Dr. Ali Mosleh (University of California, Los Angeles) Dr. Mohammad Amin Mosleh Shirazi (Shiraz University of Medical Sciences) Dr. Mohammad Reza Nematollahi (Shiraz University) Dr. Ali Reza Nematollahi (Shiraz University) Dr. Farideddin Peiravian (Shiraz University) Dr. Ahmad Pirouzmand (Shiraz University) Dr. Mohammad Pourgol Mohammad (Sahand University of Technology) Dr. Ataollah Rabiee (Shiraz University) Dr. Mohammad Rastegar (Shiraz University) Dr. Mohsen Rezaeian (Amirkabir University of Technology) Dr. Masoud Rezaei Monfared (Safety Research Center) Dr. Masoud Riazi (Shiraz University) Dr. Sumer Şahin (Nişantaşı University) Dr. Ashkan Sami (Shiraz University) Dr. Kamran Sepanloo (Atomic Energy Organization of Iran) Dr. Amir Saeed Shirani (Shahid Beheshti University of Tehran) Dr. Davood Shishebori (Yazd University) Dr. Sedigheh Sina (Shiraz University) Dr. Sajad Taghvaei (Shiraz University) Dr. Naser Vosoughi (Sharif University of Technology) Dr. Mahmood Yaghoubi (Shiraz University) Dr. Somayeh Zarezadeh (Shiraz University) Dr. Reza Zarghami (University of Tehran) Dr. Ali Zeinal Hamadani (Isfahan University of Technology) Dr. Enrico Zio (Politechnique di Milano)
9 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Committees
Executive Committee
Secretary: Dr. K. Hadad
Subcommittees:
Secretriat Dr. K. Hadad Dr. A. Pirouzmand G. Karambakhsh Z. Azarmakani M. Shahbazi
Papers Presentation Dr. S. Sina E. Farajzadeh M. H. Sadeghi A. Nabavi H. Saadati M. Shahbazi P. Rafiepour M. Zarei M. A. Moeini R. Zohrevand T. Amirabadi N. Zaker T. Zare A. Kadkhoda A. M. Karimi R. Zohrevand khedri T. Amirabadi N. Zaker
Information Technology Dr. K. Hadad Dr. A. Pirouzmand M. Izadi M. Kaviany
Publications Dr. A. Pirouzmand Dr. M. R. Mohammadian-Behbahani F. Mohammadhasani G. Karambakhsh
10 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Committees
P. Omidifard S. Sadinia M. Mohammadi N. Afshar M. Farajpour S. Hassanpour F. Fereydoonpour Z. Hasiri M. Amirsoltani M. H. Mahdian Manesh H. Saadati
Panels Dr. M. Nematollahi Dr. A. Pirouzmand Dr. Sh. Kamyab Dr. M. Rezai Monfared S. Parsaei M. Khalvandi M. Omidvar M. Sharifipour Shirazi M. Bagherinezhad G. Karambakhsh
Workshops Dr. A. Rabiee S. Soltanmohammadi A. Izadi M. Mohammadi S. Ghaseminejad A. Kamalinia A. Fakhraei S. A. Nabavi S. Parsaei H. Saadati M. Khalvandi F. Alizadeh A. Zahedi M. Sharifipour Shirazi E. Ziyadi Sangari T. Zare L. Zare E. Esmaeili Dehaj M. Mansouri Manesh
11 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Committees
A. Karimitalab M. Baneshi Z. Hasiri
Reviewers
Dr. Mahdi Karbasian Dr. Ahmad Pirouzmand Dr. Kamal Hadad Dr. Mohammad Reza Nematollahi Dr. Shahabeddin Kamyab Ms. Fatemeh Mohammadhasani Dr. Mohammad Ali Farsi Dr. M Bagher Ghofrani Dr. Davood Shishebori Dr. Somayeh Zarezadeh Dr. Ataollah Rabiee Dr. Manijeh Hadian Dehkordi Dr. Mehdi Behzad Dr. Masoud Jabary Dr. Mohsen Raji Dr. Mehdi Jahangiri Dr. Kamran Sepanloo Dr. Naser Vosoughi Dr. Reza Faghihi Dr. Sedigheh Sina Dr. Sajjad Taghvaei Dr. Reza Eslamloueyan Dr. Ashkan Sami Dr. Ghassem Habibagahi Dr. Mohammad Rastegar Dr. Firoozeh Haghighi Ms. Afsaneh Alishahi Dr. Navid Ayoobian Dr. Gholamreza Ansarifar Dr. Farideddin Peiravian Dr. Nader Hataf Dr. Aref Majdara Ms. Sara Koleini Mr. Mohsen Rezaei Dr. Mojtaba Kamalinia Dr. Seyed Mohammad Mirvakili Mr. Abolhasan Nabavi Mr. Mohsen Ebrahimian
12 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
Dr. Masoud Rezaei Monfared Dr. Mehdi Baneshi Dr. Mohammad Rahim Hematiyan Dr. Mohsen Mohammadi Dr. Zahra Tabadar Dr. Ayoub Karimi-Jashni Dr. Seied Hosein Afzali Dr. Ali Johari Dr. Mohammad Ali Hadianfard Dr. Saeid Pourzeynali Dr. Mohammadamir Najafgholipour Dr. Mohammad Mehdi Ahmadi Dr. Hamed Tajammolian Dr. Mojtaba Binazadeh Dr. Hamed Aghaei Dr. Mahdi Yazdani Dr. Mostafa Pouyakian Dr. Hosein Ghasemi Dr. Mahmoud Shahrokhi Dr. Esmaeil Alinezhad Dr. Mahdi Saghafi Dr. Tayebeh Khosravi Dr. SeyedAmin Moosavi Dr. Seyed Fazel Ghazi Ardekani Dr. Javad Mokhtari Dr. Meysam Rafiei Dr. Saeed Yousefinejad Dr. Ehsan Mansouri Dr. Homan Tahayori Mr. Abbas Sedghkerdar
13 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Prof. Enrico Zio
Department of Energy, Politecnico di Milano, Italy Ecole de Mines, ParisTech, PSL University, France
Title of Speech Prognostics and Health Management (PHM) in theory and practice: where are we and where do we (need to) go?
Abstract We are performing the digital transition of the industrial and service worlds, we are living the 4th industrial revolution, we are building the new World where the digital, physical and human dimensions are strongly interrelated in socio-cyber-physical systems. The internet of things, big data, the industrial internet, are changing the way we design, manufacture, deliver products and services. For the sustainability of these transformations, the reliability of components and systems and the safety of their operation must continue to improve. For this, the knowledge, information and data relevant to the degradation and failure processes must be integrated withina Prognostics and Health Management (PHM) framework, to advance the prediction capabilities for anticipating failures and avoiding accidents. Model-based and data-driven approaches are being developed for the assessment and prediction of components and system states, providing big opportunities for improved design, operation, management and maintenance. There is a plethora of methods available and many potential applications for them: yet, there are still a number of critical problems, which impede their full exploitation in practice. In this lecture, I frame what PHM does, both theoretically and by practical examples, and offer some reflections on the challenges still remaining for a full deployment in practice, particularly in relation to condition-based and predictive maintenance.
14 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Biography Prof. Enrico Zio received the M.Sc. degree in nuclear engineering from Politecnico di Milano in 1991 and in mechanical engineering from UCLA in 1995, and the Ph.D. degree in nuclear engineering from Politecnico di Milano and in probabilistic risk assessment at MIT in 1996 and 1998, respectively. He is currently a full professor at the Centre for research on Risk and Crises (CRC) of Ecole de Mines, ParisTech, PSL University, France, full professor and president of the Alumni Association at Politecnico di Milano, Italy, eminent scholar at Kyung Hee University, Republic of Korea, distinguished guest professor at Tsinghua University, Beijing, China, adjunct professor at City University of Hong Kong, Beihang University and Wuhan University, China and co-director of the Center for REliability and Safety of Critical Infrastructures (CRESCI) and the sino-french laboratory of Risk Science and Engineering (RISE), at Beihang University, Beijing, China. His research focuses on the modeling of the failure- repair-maintenance behavior of components and complex systems, for the analysis of their reliability, maintainability, prognostics, safety, vulnerability, resilience and security characteristics, and on the development and use of Monte Carlo simulation methods, artificial techniques and optimization heuristics. He is author and co-author of seven books and more than 500 papers in international journals, chairman and co- chairman of several international conferences, associate editor of several international journals and referee of more than 20.
15 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Prof. Sümer Şahin
Nişantaşı University, Department of Mechanical Engineering, Nişantaşı, İstanbul, Türkiye Bahçeşehir University, Department of Energy Systems Engineering, İstanbul, Türkiye
Title of Speech Nuclear Energy in Space
Abstract The power supply system for spacecrafts must be small, compact and light in order to reduce transportation costs. For mission periods exceeding few months and higher power requirements (> 20 kWel ), nuclear reactors will be far more superior than other power sources, such as, chemical fuel cells, solar cells, radioisotope generators, etc. Furthermore, a high reliability of the device is essential throughout the entire mission period. Hence, a static system is to be preferred to eliminate all possible sources of maintenance connected problems, such as, lubrication, sealing, kinematical disturbances on the space craft, etc. A very attractive way for nuclear electricity production at high levels in a space craft is the thermionic conversion. Thermionic reactors operate at high temperatures (~2000 oK) and high heat waste temperatures (~ 1000 oK), hence they can achieve higher conversion efficiencies than thermoelectricity. A thermionic system will have a compact nuclear reactor, and also a compact waste heat radiator, because high waste heat temperatures allow a drastic reduction of the radiator mass. One can distinguish in the development of thermionic reactors two main designs,
namely thermal and fast reactors. ZrH1.7 is the most recommended moderator for thermal spacecraft reactors for the sake of compactness due to high hydrogen atomic density. Beryllium moderator offers higher stability than metal hydrates at high temperatures at the cost of greater reactor dimensions. Presently, highly enriched 235U (93%) is considered as fuel. In the present work, neutronic analysis for 235U and 233U fueled reactors of both types will be presented. An integrated nuclear electric power, nuclear thermal propulsion and nuclear electric propulsion system allows not only substantial cost and mass savings but also has the potential to accomplish several space missions which require high power, high orbit, high mass and propulsion capabilities in orbit. It is a strong candidate for applications
16 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
for high power satellites, such as radar air traffic control and surveillance. In addition, it can contribute substantially to lunar base and Mars exploration for civilian missions, and for more far reaching outer planetary missions. A neutronic and thermo- hydrodynamic analysis for dual-purpose, fast, uranium carbide (UC) fueled in-core thermionic space craft nuclear reactor is conducted. Being a very compact critical assembly, the reactor has an extremely high neutron leakage. Thus, the reactor control can be performed, elegantly, through the manipulation of the radial neutron leakage with the help of the rotating reflector drums containing
natural B4C neutron absorbers, either in form of segments or strips. The effect of boronated drums in the radial reflector on core power profile and boron heating in the drums are also addressed.
17 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Biography Prof. Dr.-Ing. Sümer Şahin is now an adjoint Professor at Bahçeşehir University in İstanbul, Türkiye after he has been the Dean of Faculty of Engineering at the Near East University in the Turkish Republic of Northern Cyprus. He received his Diplom- Ingenieur (MS) degree in Mechanical Engineering at the University of Stuttgart (Stuttgart, Germany) in 1967 and Doktor-Ingenieur (Ph.D.) degree in Mechanical Engineering at the same university in 1970. In the past, he worked as a Professor at ATILIM University (Ankara, Türkiye); Gazi University (Ankara, Türkiye); Erciyes University (Kayseri, Türkiye); King Saud University (Riyad, Saudi Arabia); as an Associate Professor at Ege University (İzmir, Türkiye) and Karadeniz Technical University (Trabzon, Türkiye); as an Advanced Research Scientist at the Ecole Polytechnique Fédérale de Lausanne (Lausanne, Switzerland); and as a NATO Post- Doctoral Fellow at the Oak Ridge National Laboratory, USA. In 1997, he worked at the Universität Innsbruck, (Innsbruck, Austria) as a Visiting Professor. In1987, he served as the President of the Turkish Scientific and Technical Research Council of Türkiye (TÜBİTAK) and Vice-Chairman of the Intergovernmental Committee on Science and Technology for Development of the United Nations General Assembly (New York, USA). He has published close to 170 scholarly papers in reputable journals and about 150 international conference papers on a wide array of topics in nuclear and solar energy; and also given Invited Talks and Seminars in 16 different countries around the globe. His research interests and activities cover Neutron Transport Theory, Nuclear Radiation Shielding, Thermionic Space Craft Reactors, and Space Craft Nuclear Propulsion, Fusion Technology, Fusion-Fission (Hybrid) Reactors, Nuclear Waste Transmutation, Alternative Fuels for CANDU Reactors, Accelerator Driven Systems, Non-proliferation and Concentrated Solar Power. He has, at different universities, given lectures on Nuclear Engineering, Reactor Physics, Modern Physics, Heat Transfer, Thermodynamics, Radiation Safety, Physical Aspects of the Energy Production, Nuclear Reactor Design, Fusion Technology and Heat Pipes in Turkish, English, French and German languages.
18 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Prof. Bilal M. Ayyub
PhD, PE, Dist.M.ASCE, Hon.M.ASME, Professor and Director Center for Technology and Systems Management, Department of Civil and Environmental Engineering, University of Maryland, College Park, MD 20742, USA
Title of Speech Hazard-Resilient Infrastructure: Practical Methodology for Analysis and Design
Abstract According to the United Nations Office for Disaster Risk Reduction (UNDRR), half of the world’s inhabitants, expected by 2025 to increase to roughly two-thirds, and the vast majority of property and wealth are concentrated in urban centers situated in locations already prone to major disasters, such as earthquakes and severe droughts, and along flood-prone coastlines (UNDRR 2012). Civil infrastructure systems traditionally have been designed, constructed, operated and maintained for appropriate probabilities of functionality, durability and safety while exposed to extremes during their full-service lives. Examining systems in the context of resilience would add proper considerations for adaptability to changing conditions including recovery. This presentation introduces a Manual of Practice (MOP) on Hazard-Resilient Infrastructure that is being produced and published by the American Society of Civil Engineers (ASCE). The purpose of this MOP is to provide guidance for and contribute to the development or enhancement of standards for hazard-resilient infrastructure. The goal is to transform our infrastructure and make them hazard resilient. The framework provided in this MOP emphasizes infrastructure systems and how they support community resilience. The underlying approaches in this MOP are based on using probabilistic methods for risk analysis and management for infrastructure projects in order to effectively address uncertainties within a planning horizon timeframe.
19 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Biography Bilal M. Ayyub is an A. James Clark School of Engineering Professor and the director of the University of Maryland Center for Technology and Systems Management. He has expertise in the areas of risk, uncertainty and decision analysis and risk management including finance. He has completed research projects and studies for NSF, DOD, DOT, DHS, and several engineering companies. As a distinguished member of the ASCE, an honorary member of ASME, and a fellow of SNAME, SEI and SRA, he has served the engineering community in various leadership capacities. Among the 650 publications co-authored are more than 20 books, including several textbooks adopted for courses at universities internationally. He is the recipient of several research awards and prizes, and consulted to national and international organizations on infrastructure and defense systems on risk, microeconomic and financial modeling. He has served on the board of several research and development companies.
20 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Prof. Mohammad Pourgol-Mohammad
Associate Professor of Risk and Reliability, Sahand University of Technology and University of Maryland
Title of Speech Design for Reliability Platform and Requirement: Industry Prospective
Abstract This presentation shares the recent advancements on the industrial approaches to Design for Reliability (DfR). Despite the availability of tools and techniques of DfR, it is not well established in the companies with lower mission-critical products or services. In this presentation, the available tools and techniques of DfR are overviewed and the required resources (human, process and hardware) are discussed. Practical challenges are discussed along with the potential solutions including the reliability target setting, the steps for DfR according to the main design phases, reliability modeling/simulation and reliability testing. New simulation techniques for life determination are also discussed. The presenter’s personal experience with several world-class companies and their approach to reliability qualification (with special focus on the reliability testing and validation) will also be reviewed.
21 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Biography Dr. Mohammad Pourgol-Mohammad is a safety/reliability analyst in multidisciplinary systems analysis, and Associate Professor (Adj.) of Mechanical Engineering at University of Maryland and an Associate Professor of Reliability Engineering, with Sahand University of Technology (SUT). He received his PhD in Reliability Engineering from University of Maryland (UMD), and holds an MSc degree in Nuclear Engineering and another in Reliability Engineering from UMD. His undergraduate degree is in Electrical Engineering. Dr Pourgol-Mohammad has more than 20 year of work experience including research and teaching in safety applications and reliability engineering at various institutions including Teradyne Semiconductor, Keurig Green Mountain, Johnson Controls Inc., SUT, FM Global, Goodman Manufacturing (Daikin), UMD, Massachusetts Institute of Technology (MIT) and University of Zagreb (Croatia). He is a Fellow member of ASQ (Application pending), ASME (2020 Safety Engineering and Risk/Reliability Analysis Division (SERAD) Chair), ANS and also a member of several technical committees and a registered Professional Engineer (PE) in Nuclear Engineering at States of Massachusetts. He is a certified reliability engineer (ASQ CRE), Certified Six Sigma Black Belt (ASQ CSSBB) and Manager of Quality/Organization Excellence (ASQ CMQ/OE). He has authored more than 150 archived journal and peer-reviewed conference papers and filed one US patent (pending). His efforts have been recognized with several awards.
22 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Prof. Diego Galar
Full Professor of Condition Monitoring, Division of Operation and Maintenance Engineering, Luleå University of Technology (LTU)
Title of Speech Digital Twins for O&M: Categories and Applications
Abstract The technology and operation of assets are complex, but the adoption of IoT in and its use with OT platforms enables the use of ‘digital twins’ to manage, monitor and maintain assets. The digital twin connects complex assets and their OT systems to an IT environment by capturing data to monitor performance, deterioration and failure, location and safety compliance and remote monitoring systems for scheduling and asset utilisation. Through data fusion, digital twins become virtual and digital representations of physical entities or systems. However, the clone created with IT and OT convergence to forecast failures, demand, customer behaviour, or degradation of assets is not complete since it lacks engineering knowledge. This happens because the digital engineering models developed during the engineering phase of projects do not typically play a role in the operational phase. Therefore, digital transformation demands that engineering technology (ET) be included in the IT/OT convergence process as the importance of integrating product design increases. For that purpose, digital twins must be complemented by other information to assess the overall condition of the whole fleet/system, including information from design and manufacturing, as this obviously contains the physical knowledge of assets.
23 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Keynote Speakers
Biography Dr. Diego Galar is Professor of Condition Monitoring in the Division of Operation and Maintenance Engineering at LTU, Luleå University of Technology where he is coordinating several H2020 projects related to different aspects of cyber physical systems, Industry 4.0, IoT or industrial Big Data. He was also involved in the SKF UTC centre located in Lulea focused on SMART bearings. He is also actively involved in national projects with the Swedish industry and also funded by Swedish national agencies like Vinnova. He is also principal researcher in Tecnalia (Spain), heading the Maintenance and Reliability research group with the Division of Industry and Transport. He has authored more than four hundred journal and conference papers, books and technical reports in the field of maintenance, working also as member of editorial boards, scientific committees and chairing international journals and conferences and actively participating in national and international committees for standardization and R&D in the topics of reliability and maintenance. In the international arena, he has been visiting Professor in the Polytechnic of Braganza (Portugal), University of Valencia and NIU (USA) and the Universidad Pontificia Católica de Chile. Currently, he is visiting professor in University of Sunderland (UK), University of Maryland (USA), and Chongqing University in China.
24 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
CIV1- Methodology Areas (Oral)
Hafez Room Wednesday, 17 February 13:30 - 15:30
Civil Engineering (1) Paper Presentation Authors Title Code Time Determination of shear strength Ali Johari, Yaser parameters for a landslide by AO-03-77 13:30 - 13:50 Peiro probabilistic back analysis – a case study in Iran میالد جهانگیری، ارزیابی قابلیت اطمینان پارامتر های مودال محمد علی هادیان AO-03-69 13:50 - 14:10 به منظور شناسایی خسارت در سازه ها فرد، محمدامیر تحت تاثیر ارتعاشات و نوفه های محیطی نجفقلی پور برآورد احتمال گسیختگی خاکریز راه آهن محمدمهدی AO-03-140 14:10 - 14:30 ناشی از توزیع احتماالتی بارش مبتنی بر احمدی، شادناز کاهه، قابلیت اعتماد مرتبه اول حامد صادقی Maryam Daei, Reliability assessment of a pitched Masood Mojarad, AO-03-127 14:30 - 14:50 roof steel portal frame Reza Karimi Reliability analysis of soil slope Ashkan stability based on probable slip AO-03-83 14:50 - 15:10 Ghazvinian surface Fatemeh Ensuring vehicle stability during a Yousefinejad, lane changing scenario using AO-07-115 15:10 - 15:30 Saeed Jalili runtime verification approach Session Chairs Dr. Dehghan, Dr. Motaghed
25 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
NUC1- Methodology Areas (Oral)
Shiraz Room Wednesday, 17 February 13:30 - 15:30
Nuclear Industry (1) Presentation Authors Title Paper Code Time ایجاد رابط گرافیکی کاربری کد اسمارت برای دزیمتری در فانتوم کمال حداد، شیرین مختاری، AO-09-75 14:10 - 14:30 های همگن و ناهمگن و ارزیابی محمد رضا نعمت الهی نتایج به دست آمده از کد بررسی نفش بازتابنده در سعید زارع گنجارودی، حسین پارامترهای نوترونیک و کنترلی خامه، نازنین زهرا AO-09-220 14:30 - 14:50 قلب راکتور ماژوالر کوچک با راعی، احسان ظریفی، کامران استفاده از مدلسازی به روش سپنلو مونت کارلو بررسی انرژی فوتون و قطر ,Mojtaba vahidpour AO-09-104 14:50 - 15:10 نانوذرات طال در رادیوتراپی Sajad Keshavaz, Dariush Sardari سرطان مغز استفاده از دُزیمتر رادیوکرومیک ابراهیم فرج زاده، صدیقه FXG برای تضمین کیفیت AO-12-206 15:10 - 15:30 سینا، محمد رضا قنبرپور، پرتودهی بسته های خون در فاطمه نوروزعلی زاده اتاقکهای پرتودهی خون
Session Chairs Dr. Vosoughi, Dr. Mokhtari
26 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
PSA- Methodology Areas (Oral)
Saadi Room Wednesday, 17 February 13:30 - 15:30
Probabilistic Safety Analysis (PSA) Paper Presentation Authors Title Code Time ارزیابی اثر فرسودگی اجزاء بر معیار F. ریسک سیستمهای ایمنی نیروگاه Mohammadhasani, VVER-1000 MT-10-79 13:30 - 13:50 حاصل از کوپلینگ ,A. Pirouzmand مدلهای نگهداری مارکوف و روش M. R. Nematollahi درخت خطا ارزیابی قابلیت اطمینان متغیر با زمان محسن ابراهیمیان، AO-09-39 13:50 - 14:10 سیستم غیر فعال برداشت حرارت احمد پیروزمند، عطااله راکتور VVER ربیعی بررسی تغییرات فرکانس ذوب قلب در حادثه SB-LOCA ناشی از رویکرد علی ورچندی فرد، MT-10-71 14:10 - 14:30 جدید آنالیز خرابی در تعمیر و محمدرضا عباسی نگهداری مبتنی بر قابلیت اطمینان بر روی سیستم VE نیروگاه اتمی بوشهر Implementation of innovative Massoud technical measures to reduce AO-09-175 14:30 - 14:50 Mohsendokht the LRF and LERF values of a VVER-1000 nuclear reactor Ebrahim Ghanbari, IDPSA to Decrease Risk & Ataollah Rabiee, Energy Consumption in a AO-09-178 14:50 - 15:10 Mohammad Reza Typical PWR Nematollahi Mohammad Assessment of operator action Esmaeel. time in SBO accident by AO-09-174 15:10 - 15:30 Amirsoltani Dynamic Event Tree (DET)
Session Chairs Dr. Jabary, Dr. Sepanloo
27 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
ENV- Methodology Areas (Oral)
Eram Room Wednesday, 17 February 13:30 - 15:10
Environmental Impact Assessment Paper Presentation Authors Title Code Time برنامه های حفاظت زیست محیطی فاطمه آزادی، ایوب MT-03-130 13:30 - 13:50 )EPP( در پروژه های عمرانی کریمی جشنی Seyed Mohamad Jafar Evaluating the trend of daily Nazemosadat, Ali precipitation changes using MT-03-181 13:50 - 14:10 Ebrahimi, Somayeh eioc.ir site during a long time Shadkam, Afsaneh series in Fars province Heidary تعیین غلظت فلزات سنگین درخاک و محصوالت کشاورزی سحر بیاتی، کمال MT-03-177 14:10 - 14:30 مناطقی از شیراز، آبیاری شده با حداد، جواد مختاری پساب ها، با بکارگیری روشهای فعالسازی نوترونی و جذب اتمی تعیین غلظت آلودگی فلزات سنگین منوچهر نوابی، احمد AO-09-120 14:30 - 14:50 در برگ چای ایرانی با استفاده از پیروزمند روش آنالیز فعال سازی نوترونی شبیه سازی پراکندگی- انتقال مواد پرتوزا درون آب های ساحلی خلیج Mansour Ahmadi, ¬ AO-05-197 14:50 - 15:10 فارس حاصل از حادثه قطع کامل Ahmad Pirouzmand برق در واحد 1 نیروگاه بوشهر با استفاده از کدهای CROM و HYSPLIT
Session Chairs Dr. R. Faghihi, Dr. Bidokhti
28 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
CIV2- Methodology Areas (Oral)
Hafez Room Wednesday, 17 February 16:00 - 18:20
Civil Engineering (2) Presentation Authors Title Paper Code Time ارزیابی مقایسه ای قابلیت محسن شهروزی، پیمان AO-03-190 16:00 - 16:20 اعتماد درطرح بهینه همزمان همامی، عاطفه سادات ابعادی و هندسی پل فوالدی سادات نیا ارزیابی تاثیر عوامل مرتبط با راه سید حسین بخشی، AO-03-152 16:20 - 16:40 و محیط اطراف بر ایمنی ترافیک رشیدرضا حقیقی و خطر تصادفات شدت تصادف درونشهری بر Mohammad Esmaeilnia, حسب نوع و نحوه برخورد و Abbas Babazadeh, AO-03-139 16:40 - 17:00 روشنایی معبر: تحلیل آماری و ,Amir Tabrizian مدلسازی Ali Moghadari A multi-occurrence Pedram seismic hazard life-cycle Omidian, Naser cost retrofit optimization AO-03-72 17:00 - 17:20 Khaji framework for RC refinery infrastructures Keyvan Optimizing Fire Hydrant Habibi, Seied Layout Based on AO-03-107 17:20 - 17:40 Hosein Afzali Uncertainty Analysis قابلیت اعتماد تعیین حداقل بزرگای آسیب رسان به ساسان معتقد، احمدرضا AO-03-165 17:40 - 18:00 ساختمانها در تحلیل احتمالی فخریت خطر زلزله ارزیابی قابلیت اطمینان سازه ساسان معتقد، امین AO-03-171 18:00 - 18:20 های فوالدی در سطح عملکردی محرابی مقدم، وحید طراحی برزیان
Session Chairs Dr. Johari, Dr. Yazdani
29 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
NUC2- Methodology Areas (Oral)
Shiraz Room Wednesday, 17 February 16:00 - 18:00
Nuclear Industry (2) Paper Presentation Authors Title Code Time Masoud The function and subcritically Nasouri, Kourosh analysis of core catcher as an AO-09-200 16:00 - 16:20 Keshtkar, Seifollah accident management system Vahdanifar in VVER-1000 (AES-92) NPP Gholamreza Control System Design for a Ansarifar. Supercritical Water Nuclear AO-09-117 16:40 - 17:00 Muhammad Reactor Using Robust Sliding Hajipour Mode Method آنالیز ایمنی انجام تست¬های در Saiedeh Safaei Arshi, حین پرتودهی بر روی سوخت های Seyed Mohammad AO-09-51 16:20 - 16:40 تولید داخل در قلب راکتور تحقیقاتی ,Mirvakili تهران Hossein Khalafi Seyed Ali Hosseini, Investigation of the Natural Reza Akbari, Circulation Flow Map in AO-09-24 17:00 - 17:20 Amir Saied NuScale Small Modular Shirani, Reactor Francesco D'Auria
ارزیابی عملکرد سیستمهای ایمنی Saiedeh Safaei لوپ تست سوخت راکتور تحقیقاتی ,Arshi AO-09-50 17:20 - 17:40 تهران در طی حادثه از دست رفتن Seyed Mohammad Mirvakili خنک کننده شبیه سازی و تحلیل آزمایش اختالط محمد خالوندی، محمد سیال خنک کننده در محفظه فشار باقر غفرانی، محمد رضا AO-09-125 17:40 - 18:00 راکتور نیروگاه هسته ای بوشهر با نعمت الهی، حسن استفاده از نرم افزار ANSYS سعادتی CFX 18.0 Session Chairs Dr. Ayoobian, Dr. F. Faghihi
30 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
RCM- Methodology Areas (Oral)
Saadi Room Wednesday, 17 February 16:00 - 18:00
Reliability-Centered Maintenance (RCM) Paper Presentation Authors Title Code Time بهبود قابلیت اطمینان سیستم های Farzane Sharif پیچیده با استفاده از تحلیل ماتریس Sahi, Mahdi MT-12-114 16:00 - 16:20 ساختار طراحی و شناسایی خرابی Karbasian تعاملی شناسایی محل آسیب بلبیرینگ با Mohammad Ali MT-12-13 16:20 - 16:40 استفاده از شبکه کانولوشن یک بعدی Farsi ارائه استراتژی بهینه تعمیر و نگهداری محمد قابلیت اطمینان محور بر اساس آنالیز MT-12-97 16:40 - 17:00 رستگار، محمدحسین مودهای خرابی و تاثیرات در شبکه انجوی مدار های توزیع انرژی الکتریکی Majid Mardani shahri, ارائه یک رویکرد جدید نگهداری Abdolhamid MT-12-116 17:00 - 17:20 وتعمیرات مبتنی بر قابلیت اطمینان با Eshraghniaye Jahromi, استفاده از ابزارهای هوش مصنوعی Mahmoud Houshmand Amir hossein بررسی افزایش قابلیت اطمینان Asghari, Mojtaba MT-12-213 17:20 - 17:40 سامانههای خورشیدی منفصل از Ayaz , Mahdi Marzbani, Vahid FMEA شبکه با روش Baghishni شاخص جدید الویت بندی اجزای مینا MT-12-185 17:40 - 18:00 سیستم توزیع برای برنامه ریزی میرحسنی، فرشید تعمیرات قابلیت اطمینان محور کی نیا
Session Chairs Dr. Karbasian, Dr. Farsi
31 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
ENR- Methodology Areas (Oral)
Eram Room Wednesday, 17 February 16:00 - 18:20 Energy Paper Presentation Authors Title Code Time روشی کاربردی برای برنامه ریزی تعمیرونگهداری قابلیت اطمینان محور AmirReza AO-05-57 16:00 - 16:20 بمنظور افزایش قابلیت اطمینان شبکه Yari, Hassan Moradi توزیع برق ارزیابی اعتبار ظرفیت نیروگاههای تجدیدپذیر در شبکه قدرت تحت سیاوش یاری، رضا AO-05-10 16:20 - 16:40 مدیریت شرکت برق منطقهای زنجان با نوروزیان، حمید استفاده از تحلیل کفایت تولید و شاخص خوشخو، محمد اخالقی های قابلیت اطمینان بررسی تاثیر عدم قطعیت ناشی از انرژی Moslem AO-05-103 16:40 - 17:00 باد بر ارزیابی ریسک به مدار آمدن واحد Geravandi, Hassan Moradi در سیستم قدرت متصل به مزرعه بادی
بررسی شاخص های قابلیت اطمینان در Ali Haghighat, Cyrus طرح جهادی تاب آوری شبکه توزیع برق Hedayati AO-05-209 17:00 - 17:20 گیالن باکاهش شاخص ( SAIFIمطالعه Nejad, Ebrahim Khoshnood موردی در امور یک توزیع برق گیالن( ارزیابی تاب آوری شبکه توزیع برق در MT-13-211 17:20 - 17:40 رضا صابری حضور منابع فتوولتاییک آنالیز حساسیت بر تأثیر وضعیت شبکه شهاب الدین پیش خطا در فرکانس وقوع حادثه از MT-10-133 17:40 - 18:00 کامیاب، فرامرز یوسف دست رفتن شبکه برق خارجی به نیروگاه پور، محمد رضا نعمت الهی هسته ای به کمک روش مرکب برنامه ریزی بهینه نگهداری و تعمیرات AO-05-176 18:00 - 18:20 شبکه های توزیع برق با هدف بهبود حسین قاسمی شاخص های فنی و اقتصادی
Session Chairs Dr. Rastegar, Dr. Mohammadi
32 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
CIV3- Methodology Areas (Oral)
Hafez Room Thursday, 18 February 10:00 - 12:20
Structural Reliability Paper Presentation Authors Title Code Time پهنهبندی و برآورد قطعی خطر شاهین خدادادی، سعید AO-03-90 10:00 - 10:20 لرزهای در شهر اردبیل با پورزینلی استفاده از سیستم فازی Safety assessment of Ahmad short columns in Reyhani, Hossein reinforced concrete AO-03-203 10:20 - 10:40 Shahraki moment frames using a probabilistic approach ارزیابی اثرات عدم قطعیت در فاطمه جبروتی، علی AO-03-169 10:40 - 11:00 روشهای تحلیلی تخمین درخشانی نشست تک شمع
ارزیابی قابلیت اطمینان ,Peyman Gholami چندالیههای سوراخدار ساخته Mohammad Ali MT-16-44 11:00 - 11:20 شده از مواد مرکب با استفاده از ,Kouchakzadeh Mohammad Ali Farsi تئوری مکانیک آسیب پیوسته Reliability analysis of Ali Johari, Zohreh concrete slab deflection MT-16-80 11:20 - 11:40 Delavar by direct design method Alireza Finite-Element Based Shadmani, MehdiSaeed Reliability Assessment of MT-16-4 11:40 - 12:00 Kiasat Pipeline Spanning ارزیابی قابلیت اطمینان ستون محمد مومنی، محمد علی MT-16-56 12:00 - 12:20 های فوالدی تحت اثر بارهای هادیان فرد دینامیکی آنی
Session Chairs Dr. Hematiyan, Dr. Ahmadi
33 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
NUC3- Methodology Areas (Oral)
Shiraz Room Thursday, 18 February 10:00 - 12:00
Nuclear Industry (3) Paper Presentation Authors Title Code Time Investigation of Emergency Farhad core cooling system in SBO Salari, Ataollah accident in the VVER-1000 AO-09-192 10:00 - 10:20 Rabiee, Farshad reactor containment from core Faghihi catcher point of view بررسی شار حرارتی بحرانی جوشش حمیدرضا استخری بر روی سطح مس پوشش AO-09-106 10:20 - 10:40 محمدی، عطااله داده شده به روش تقویت رسوب بخار ربیعی، حامد تقوایی شیمیایی پالسما. Improving the accuracy of oil- water flow volume fraction measurement: The influence of Mohsen Sharifzadeh the quality of preconditioning AO-09-191 10:40 - 11:00 homogenization used in the stream line on the accuracy of gamma-ray densitometer. شبیه سازی آتش سوزی اتاق کنترل سحر مجاب، غالمرضا AO-09-19 11:00 - 11:20 اصلی نیروگاه اتمی بوشهر با استفاده از جهان فرنیا، احسان کد CFAST ظریفی، مسعود منصوری N.Manouchehri Charamakani, فرآیند سایت یابی جهت احداث راکتور M. Nematollahi, AO-09-201 11:20 - 11:40 تحقیقاتی فارس M. Raoufat
ارائه مدلی برای راهنمای مدیریت Mohamad Reza HSE AO-09-123 11:40 - 12:00 در فعالیت ها از طراحی تا پس از Tahaeifard, Masoud jabbari بهره برداری نیروگاههای هسته ای
Session Chairs Dr. Rabiee, Dr. Shirani
34 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
REL1- Methodology Areas (Oral)
Saadi Room Thursday, 18 February 10:00 - 12:00
System Reliability (1) Paper Presentation Authors Title Code Time Sanaz Aghabeigi Reliable hardware Poor, Saeideh architecture for Piccolo MT-17-153 10:00 - 10:20 Sheikhpour, Ali block cipher Mahani ارزیابی قابلیت اطمینان محمد رستگار، علیرضا MT-17-106 10:20 - 10:40 سیستمهای بهم پیوسته برق و گاز با حضور فناوری های P2G و تابع بردبار CHP طراحی ساختار اطالعاتی و Mohammadjavad محاسباتی قابلیت اطمینان Shamsi, Mahmoud MT-17-86 10:40 - 11:00 کمپرسور رفت و برگشتی در Shahrokhi پاالیشگاه شازند Abbas Dehghan A New Evolutionary Hesampour, Koorush Algorithm for Reliability MT-17-144 11:00 - 11:20 Ziarati, Somayeh Redundancy Allocation Zarezadeh Problem Optimum preventive maintenance policy of systems with lifetimes Maryam Kelkinnama MT-08-147 11:20 - 11:40 dependent on a random shock process subject to random working times A Bi-Objective Robust Samira Optimization Model for Imani, Davood MT-19-219 11:40 - 12:00 post-Disaster debris Supply Shishebori Chain under Uncertainty
Session Chairs Dr. Behzad, Dr. Farsi
35 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
HSE1- Methodology Areas (Oral)
Eram Room Thursday, 18 February 10:00 - 12:00
Health, Safety and Environment (HSE) (1) Paper Presentation Authors Title Code Time سنجش سطح دانش اعضای Hemn zarei, Payam MT-06-95 10:00 - 10:20 تیم مدیریت بحران در یک haydari, Omid kalatpour صنعت پتروشیمی مدلسازی فرایند وقوع حوادث کاظم سروستانی، عمران MT-06-15 10:20 - 10:40 در مخازن ذخیره گاز مایع با احمدی استفاده از روش SHIPP آنالیز پیامد و مدلسازی طیبه خسروی، نیوشا حوادث مخزن آمونیاک در MT-06-126 10:40 - 11:00 عباسیان چوری، زهرا شرکت بهنوش ایران با استفاده سجودی از نرم افزارPHAST ارزیابی قابلیت اطمینان ,Fereydoon Laal سیستم های اطفای حریق با ,Mostafa Pouyakian Mohammad Javad MT-06-76 11:00 - 11:20 استفاده از شبکه بیزین فازی ,Jafari, Farshad Nourai در مخازن سقف شناور یک ,Ali Akbar Hosseini Alireza khanteymoori شرکت پتروشیمی بررسی عدم اطمینان روش FMEA سنتی و فازی بر MT-17-136 11:20 - 11:40 اساس یک رویکرد LOPA آرزو بقایی، احسان حبیبی محور در یک صنعت پتروشیمی انتخاب تجهیز بحرانی با استفاده از رویکرد تئوری ام البنین یوسفی، سپیده مطلوبیت چند شاخصه MT-08-36 11:40 - 12:00 مالمحمدنوه سی، محمد جواد )MAUT( و شناسایی حاالت امیدی و اثرات شکست آن مطالعه موردی: پمپ )lmv-311(
Session Chairs Dr. Pouyakian, Dr. Jahangiri
36 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
AERO1- Methodology Areas (Oral)
Hafez Room Thursday, 18 February 13:30 - 14:50
Aeronautics and Aerospace Paper Presentation Authors Title Code Time Hamid Reza Ali Reliability Based-Design Mohamadi, Alirezaa Optimization for Thrust Chamber AO-01-112 13:30 - 13:50 Noorollaahi by FORM method Omid Shekoofa, مقایسه پیکربندیهای مختلف Farhad AO-01-204 13:50 - 14:10 ماهوارههای مکعبی ماژوالر بر مبنای ,Bagheroskouei Nafiseh Namazypour, قابلیت اطمینان بخش تولید توان Farzaneh Hadadi مدلسازی وتحلیل ساز وکار حرکتی ارابه حدیث منتظری، محسن MT-10-159 14:10 - 14:30 فرود هواپیمای مسافربری وتحلیل قابلیت رضائیان اطمینان و دسترس پذیری آن پیش بینی قابلیت اطمینان برای پرتابه های برد کوتاه )هدایت سیمی یا لیزری(
MT-09-62 14:30 - 14:50 ارتقاء یافته به سیستم هدایت و ناوبری جواد کریمی اینرسیایی با استاندارهای -MIL 338&HDBK-217 Session Chairs Dr. Farsi, Dr. Karbasian
37 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
NUC4- Methodology Areas (Oral)
Shiraz Room Thursday, 18 February 13:30 - 15:30
Nuclear Industry (4) Paper Presentation Authors Title Code Time بررسی افزایش ایمنی و قابلیت حسین زایرمحمدی اطمینان راکتورهای ماژوالر کوچک AO-09-38 13:50 - 14:10 ریشهری، مجید با استفاده از سوخت حلقوی خنک زیدابادی نژاد شونده از داخل و خارج Abolfazl Shoghi, طراحی، شبیهسازی و ارزیابی Amir Saeed Shirani, Seyed AO-09-18 14:10 - 14:30 سیستم کنترل فشار در تست لوپ ,Ali Hosseini تحقیقاتی فشار باال Mahdi Zangian
آنالیز ترموهیدرولیکی سیستم علی شهابی نژاد، احمد MT-02-143 14:30 - 14:50 ایمنی پسیو برداشت حرارت رآکتور
VVER-1000 با استفاده از کد پیروزمند، عطااله ربیعی RELAP5 Mohamad Hasan. Design and Fabrication of MahdianManesh, Calibration Reference Amir Phantom for Industrial AO-09-156 14:50 - 15:10 Movafeghi, Esmaeil Computed Tomography Bayat, Reza System (CT-Scan) Faghihi شبیه سازی و بررسی اثرتخریب تابش نوترون بر مخزن راکتور AO-09-179 15:10 - 15:30 محمد شهرنازکیان مینیاتوری اصفهان با استفاده از دینامیک مولکولی Session Chairs Dr. Mirvakili, Dr. Ansarifar
38 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
REL2- Methodology Areas (Oral)
Saadi Room Thursday, 18 February 13:30 - 15:10
System Reliability (2), Human Factors Paper Presentation Authors Title Code Time Reliability Assessment of Hamidreza Phased Mission Systems Bidarmaghz, Somayeh MT-17-118 13:30 - 13:50 with Ternary and Non- Zarezadeh identical Components محاسبه قابلیت اطمینان و پیش ,Mahdi Karbasian Parastoo Divsalar MT-17-5 13:50 - 14:10 بینی طول عمر باتری های سرب اسید بر پایه مدل وایبال Mehdi Jahangiri, Excessive daytime Hamidreza sleepiness and safety Mokarami, Rosanna performance: comparing MT-07-115 14:10 - 14:30 Cousins, Vahid proactive and reactive Gharibi approaches Interactions among Mahnaz Shakerian, cognitive factors affecting Alireza Choobineh, unsafe behavior Mehdi Jahangiri, Jafar MT-07-162 14:30 - 14:50 contributing to “white swan Hasanzadeh, Moslem events” based Fuzzy- Alimohammadlou DEMATEL ISM approach کاربرد روش تحلیل فرآیند سلسله مراتبی برای ارزیابی سیدامین موسوی، OT-00-205 14:50 - 15:10 ریسک عوامل انسانی در صنعت شهاب الدین کامیاب معدنکاری روباز ارزیابی قابلیت اطمینان ایستگاه های تقلیل فشار باستفاده از روش Mohammadreza Borna MT-09-20 15:10-15:30 بلوکی، مطالعه موردی: شرکت گاز استان گلستان
Session Chairs Dr. Aghaei, Dr. Shishebori
39 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability Program and Safety Engineering Conference
HSE2- Methodology Areas (Oral)
Eram Room Thursday, 18 February 13:30 - 15:30 Health, Safety and Environment (HSE) (2) Presentation Authors Title Paper Code Time رضا اسالملوئیان، نصیر تحلیل وضعیت مدیریت ایمنی مهران بد، محمد سرشار، MT-06-134 13:30 - 13:50 فرایند پاالیشگاه گاز پارسیان بر حسین اسماعیلی، علی اکبر اساس استاندارد اوشا ازوجی، صادق روزمند، شهرام پاینده تخمین قابلیت اطمینان سیستم Mohammad Javad Jafari, Mostafa های اعالم حریق با استفاده از Pouyakian, Alireza MT-15-124 13:50 - 14:10 شبکه های بیزین پویا و تئوری Khanteymoori, Saber فازی Moradi Hanifi شبیهسازی سهبعدی توزیع دما و پخش دود در حریق یک MT-15-145 14:10 - 14:30 علی پاسبان، مهدی ثقفی ساختمان مسکونی با استفاده از نرمافزار PyroSim شناسایی و اولویتبندی ریسکهای بخش جراحی در مراکز درمانی با استفاده از روش Esmaeil MT-04-148 14:30 - 14:50 تحلیل حاالت و اثرات شکست Alinezhad, Fateme Sadeghi )FMEA( و روش چند شاخصۀ TOPSIS: )به همراه مطالعه موردی( استفاده از روش واکاوی حالت نقص و اثرات آن در ترکیب با روش های تصمیم گیری MT-04-55 14:50 - 15:10 چندمعیاره و فازی شهودی فاطمه امیدواری جهت ارزیابی ریسک حریق در ساختمان: مطالعه موردی در بیمارستان
40 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
Afsaneh Alishahi, Mohammad- Converting oil refinery Taghi waste into biodiesel to Golmakani, Mehrdad AO-12-167 15:10 - 15:30 reduce environmental Niakousari, Masoud pollution Riazi, Barat Ghobadian
Session Chairs Dr. Eslamloueyan, Dr. Kamalinia
OTH1- Methodology Areas (Oral)
Shiraz Room Thursday, 18 February 16:00 - 17:20
Other Topics Presentation Authors Title Paper Code Time Evaluation of the difference effect of Majid daily intake of vitamin Shakoorian, Hamid C effervescent tablet Babakpour, Mohammad supplement versus the Entezam, Ali effect of a diet rich in AO-12-48 16:00 - 16:20 AleEisa, Sepideh vitamin C for two Sourori, Ali weeks in reducing the Farmani, Milad blood lead levels of Nabhani welders and fitters with final purpose of increase body immune تحلیل ادراک از خطر سالمتی سموم شیمیایی و استفاده از AO-12-121 16:20 - 16:40 مجتبی سوختانلو تجهیزات ایمنی، میان کشاورزان سیب زمینی کار مدیریت تلفیقی آفات Manijeh Hadian Dehkordi, Farah Sadat کارآمدترین و ایمنترین Madani, Nasrin Noohi OT-00-164 17:00 - 17:20 راهکار کنترل خطر آفات در Babajan, Fereshteh موزهها Sadat Hashemian
Session Chairs Dr. Rezaei Monfared, Dr. Kamalinia
41 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
IT- Methodology Areas (Oral)
Hafez Room Thursday, 18 February 16:00 - 17:20
Information Technology Paper Presentation Authors Title Code Time Ivan Brokarev, Mais Comparative Analysis of AO-06- Farkhadov, Sergei Recurrent Neural Networks for 16:00 - 16:20 27 Vaskovskii Natural Gas Quality Analysis Investigating the Reliability in Leila Namvari Three RAID Storage Models AO-06- Tazeh-Kand, Saeid 16:20 - 16:40 and Effect of Ordering Replicas 78 Pashazadeh on Disks Mohammad Zaree, A Fault Tolerant Linear AO-11- 16:40 - 17:00 Mohsen Raji Feedback Shift Register 166 کنترل مقاوم کنترلکننده منطقی AO-06- سید محمد مهدی 17:20 - 17:00 برنامهپذیر در مقابل حمله به حافظه و 149 هاشمی، اشکان سامی خرابیهای حسگرها Session Chairs Dr. Sami, Dr. Tahayori
42 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
RM- Methodology Areas (Oral)
Saadi Room Thursday, 18 February 16:00 - 17:20
Risk Management Presentation Authors Title Paper Code Time شناسایی و ارزیابی ریسک با Maryam Abdollahi, PHA MT-13-82 16:00 - 16:20 روش آنالیزمقدماتی خطر) ( Hamed Rahimi دریک صنعت فوالد سال 1399 Evaluation of Safety Status to Shahriar Educational Mojtaba Rezaie Environment by the MT-13-35 16:20 - 16:40 Checklist System for Safety Reports ارزیابی، تحلیل و مدیریت ریسک Mahdi Rahimdel MT-14-33 16:40 - 17:00 در فرایند تولید محصوالت با Meybodi رویکرد کنترل فازی مدیریت ریسک خطرات ایمنی و بهداشت حرفهای در کارخانههای تولید فوالد با استفاده از روش ,Esmaeil Alinezhad MT-06-161 17:00 - 17:20 تجزیه و تحلیل حاالت بالقوه خطا Mahtab Dehghani )FMEA( )به همراه مطالعه موردی(
Session Chairs Dr. Alinezhad, Dr. Sepanloo
43 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
CIV4- Methodology Areas (Poster)
Wednesday, 17 February 13:30 - 15:30 Poster Room One
Civil Engineering (1) Presentation Paper Code Title Authors Time سید نصراله بررسی وابستگی پاسخ لرزهای پلهای افتخاری، فاطمه بزرگراهی به بیشینه دامنههای AO-03-12 13:45 - 13:30 ثمره، ساسان زمینلرزه معتقد، هادی صیادپور بررسی قابلیت اطمینان پایداری پیمان قول بیگی، صادق شیروانی های طبیعی به کمک زنجیره 13:45 - 14:00 AO-03-155 صادقی مارکوف-مونت کارلو و با بهره گیری از روش تحلیل FLEM Stochastic site response analysis of sandy soil by Ali Johari, Sajad 14:00 - 14:15 AO-03-81 random finite difference Pourbeirak method 14:15 - 14:30 Questions & Answers
تحلیل احتماالتی- فازی خطر لرزهای سجاد روح بخش، سعید برای یک ساختگاه معین واقع در شهر AO-03-91 14:45 - 14:30 پورزینلی رشت واکاوی مدیریت ایمنی در پژوهشهای مجید پرچمی دانشگاهی مدیریت پروژه در ایران با AO-03-92 15:00 - 14:45 جالل، محمدامین قادری رویکرد متنکاوی مروری بر کاربرد هوش مصنوعی و مجید پرچمی جالل، مدلهای یادگیری ماشین در مدیریت AO-03-93 15:15 - 15:00 زهراسادات شکرانی ایمنی پروژههای صنعت ساخت 15:15 - 15:30 Questions & Answers
44 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
NUC5- Methodology Areas (Poster)
Wednesday, 17 February 13:30 - 15:30 Poster Room One
Nuclear Industry (1) Presentation Paper Title Authors Time Code The impact of MNSR fuel Kamal Hadad, Arash 13:30 - 13:45 AO-09-108 conversion from HEU to LEU Izadi, Javad Mokhtari on the reactor safety. سعید زارع ارزیابی ایمنی راکتور ماژوالر کوچک گنجارودی، احسان AO-09-180 14:00 - 13:45 پیشرفته در زمان کارکرد عادی ظریفی، کامران سپانلو افسانه ابولحسنی، سعید تحلیل ایمنی و بررسی پارامترهای زارع گنجارودی، احسان کنترلی راکتور ماژوالر کوچک AO-09-182 14:15 - 14:00 ظریفی، کامران سپانلو پیشرفته با خنک کننده فلز مایع 14:15 - 14:30 Questions & Answers Oil-water component fraction measurement by combining the 14:30 - 14:45 AO-09-193 gamma-ray technique with a Mohsen Sharifzadeh dynamic laboratory-scale liquid-liquid mixer. سعید زارع گنجارودی، محمدمهدی ارتقای ایمنی راکتورهای تحقیقاتی 14:45 - 15:00 AO-09-194 مرشدی توفیق، احسان تهران در زمان حوادث ظریفی، کامران سپانلو ,Mohsen Sharifzadeh اندازه گیری میزان شوری آب تولیدی Ali Taheri, Mohammad در سکوهای نفت و گاز با استفاده از AO-09-195 15:15 - 15:00 Taghan Sasanpour تکنیک گاما 15:15 - 15:30 Questions & Answers
45 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
CIV2- Methodology Areas (Poster)
Wednesday, 17 February 16:00 - 18:00 Poster Room One
Civil Engineering (2) Presentation Paper Title Authors Time Code Aram Saaed, Mohammad تحلیل قابلیت اعتماد دینامیکی قاب 16:15 - 16:30 AO-03-31 Daghigh خمشی بتنی پیش بینی نرخ سایش و ضریب اصطکاک کامپوزیت خاکسترآلومینیوم 16:30 - 16:45 MT-16-14 Mohammad Ali Farsi ) ash A380-Fly(مبتنی بر شبکه عصبی مصنوعی 16:45 - 17:00 Questions & Answers
HSE (1)
آنالیز پیامد و مدلسازی حوادث مخزن طیبه خسروی، زهرا اتانول شرکت بهنوش ایران با استفاده از MT-06-128 17:15 - 17:00 سجودی، نیوشا عباسیان چوری نرم افزار PHAST شناسایی مهمترین اقدامات حفاظتی مجتبی سوختانلو، مهیار کشاورزان، در مراحل بکارگیری سموم AO-12-122 17:30 - 17:15 صحرایی شیمیایی 17:45 - 18:00 Questions & Answers
46 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
Wednesday, 17 February 16:00 - 18:00 Poster Room One
Nuclear Industry (2) Presentation Paper Title Authors Time Code پیش بینی پخش مواد رادیواکتیو از نیلوفر منوچهری، محمد رضا سایت پیشنهادی راکتور تحقیقاتی AO-09-202 16:15 - 16:00
نعمت الهی فارس با استفاده از نرم افزار HYSPLIT Mahdi Aghili Nasr, Seyed مروری بر شرایط، کارکرد و چالشهای Ali Hosseini, Ahmadreza 16:15 - 16:30 AO-09-21 Zolfaghari, Amir Saeed مربوط به سوختهای مقاوم در برابر Shirani حوادث هستهای طراحی یک مجتمع سوخت حلقوی خنک شونده از داخل و خارج با آرایه حسین زایرمحمدی ریشهری، 14×14 و بررسی تاثیر شعاع کانال AO-09-58 16:45 - 16:30 مجید زیدابادی نژاد داخلی بر پارمترهای ایمنی راکتور با استفاده از برنامه ریزی بیان ژن 16:45 - 17:00 Questions & Answers
Assessment of the core catcher safety system in VVER-1000 Farhad Salari, Farshad 17:00 - 17:15 AO-09-189 reactor containment in SBO Faghihi, Ataollah Rabiee accident using MELCOR code
بررسی اثرات تغییر در سیاستهای .F. Mohammadhasani, A نگهداری و مشخصه فنی STI اجزاء بر 17:15 - 17:30 MT-10-61 Pirouzmand, M. Karbasian عملکردهای مختلف سیستمهای ایمنی نیروگاه VVER-1000 بررسی و ارزیابی قابلیت اطمینان در سیستمهای کنترل دیجیتال و Hadi Kasiri, Manijeh sadat 17:30 - 17:45 AO-09-54 Badri روشهای آنالیز آن در سیستمهای کنترل و ابزار دقیق نیروگاههای هستهای 17:45 - 18:00 Questions & Answers
47 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
HSE4- Methodology Areas (Poster)
Thursday, 18 February 10:00 - 12:00 Poster Room One
Health, Safety and Environment (HSE) Presentation Paper Code Title Authors Time Pesticide handling health risks and determinants of Sahar Pirmoazzen, Asghar 10:00 - 10:15 MT-06-170 safety behavior among crop Bagheri farmers in ardabile county ارزیابی سطح قابلیت اطمینان و بهزاد غالمی، موسی جباری دسترسی سیستمهای ابزار دقیق MT-06-184 10:30 - 10:15 ایمنی توربین گازی مدل H-25 10:45 - 11:00 Questions & Answers
,Yousef Yousefpour بررسی میزان اثربخشی آموزش Mousa Jabbari, 11:00 - 11:15 MT-06-196 KPABC ,Mohtasham Gaffari ایمنی بر اساس الگوی Alireza Shokuhian در یک پروژه احداث خط لوله شناسایی خطرات و تجزیه و تحلیل ,Ehsan Rezaieyan کیفی ریسک در واحد تقلیل فشار Mottahare 11:15 - 11:30 MT-13-26 HAZOP )PRU Nazinejad, Mostafa گاز ) با روش های Vagharimoghadam و FMEA )مطالعه موردی: ایستگاه PRU شهر زابل( 11:45 - 12:00 Questions & Answers
48 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
NUC7- Methodology Areas (Poster)
Thursday, 18 February 10:00 - 12:00 Poster Room One
Nuclear Industry (3) and Energy Presentation Paper Title Authors Time Code Development of electric RLC model for reliability of Jamshid Shayan, Dariush 10:00 - 10:15 AO-09-59 cancer treatment with Sardari, Farshid Babapour various RF frequencies Basic design of Compton Dariush SardarI, Shahnaz 10:15 - 10:30 AO-09-60 scatter imaging system for Hashemi industrial inspection purpose Ehsan Boustani, Samad آنالیز ایمنی حادثه از دست دادن Khakshournia, Hassan کامل خنک کننده در راکتور MT-02-65 10:45 - 10:30 Esmaili تحقیقاتی تهران 10:45 - 11:00 Questions & Answers
محاسبه میزان فعالسازی عناصر وحید جمشیدی، حامد موجود در بتن ساختمان راکتور در حسینی، جواد امامی، جواد زمان ازکازاندازی یک نیروگاه AO-09-63 11:15 - 11:00 امامی، بهزاد خسروپور هسته ای به روش تقریب منطقی چبیشف عوامل موثر بر نرخ خرابی و تحلیل حسین قاسمی، الناز شهرابی ریشه ای آن جهت افزایش قابلیت AO-05-84 11:30 - 11:15 فراهانی اطمینان سیستم های قدرت مدل سنجش موفقیت ایمنی و ,Arash Vaghef Koodehi حوادث در شبکه های توزیع برق Mohammadreza Poorkhosh منطبق با نظام HSE ونحوه انتخاب MT-01-217 11:45 - 11:30 Saadat استراتژی مناسب جهت بهبود قابلیت اطمینان 11:45 - 12:00 Questions & Answers
49 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Program
MATH- Methodology Areas (Poster)
Thursday, 18 February 13:30 - 15:30 Poster Room One
Mathematical Methods in Reliability and Safety Presentation Paper Code Title Authors Time Type-II Hybrid Progressive Censoring Scheme in Lomax Akram Kohansal, Shirirn 13:30 - 13:45 MT-09-216 Distribution with Reliability Shoaee Parameter: Bayesian Approach ارائه یک الگوی تخصیص قابلیت Mahdi Rahimdel اطمینان محصول به زیرمجموعههای 13:45 - 14:00 MT-09-34 Meybodi مربوطه از منظر وابستگی و امکانپذیری تخصیص سرمایهگذاری در زنجیره Amir Radfar, Hossein تأمین رقابتی با وجود همبستگی 14:00 - 14:15 MT-09-46 Dehghan عملکردی بین زیرسیستمها و رویکرد قابلیت اطمینان 14:15 - 14:30 Questions & Answers
Aerospace
ارزیابی ریسک یک سامانه کنترل مهدی خرسندی، علی گسسته با عملگر مغناطیسی در یک AO-01-24 14:45 - 14:30 جعفرقلی، محسن بختیاری فر موتور سوخت مایع خاص تعیین پارامترهای ایمنی گرمایی در یک نمونه پیشرانه جامد دوپایه راکتی محمدرضا نایب حسینی MT-15-199 15:00 - 14:45 با استفاده از روش آنالیز حرارتی و تحلیل سینتیکی پیشرفته تحلیل خطای سامانهی مهدی خرسندی، علی الکتروپنوماتیکی فشار باال در یک MT-04-23 15:15 - 15:00 جعفرقلی، داود صادق نژاد موتور سوخت مایع خاص 15:15 - 15:30 Questions & Answers
50 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability Program and Safety Engineering Conference
REL3- Methodology Areas (Poster)
Thursday, 18 February 13:30 - 15:30 Poster Room One
Reliability Presentation Paper Title Authors Time Code Ali تلفات ومکان یابی ترانسفورماتور های Haghighat, Ebrahim 13:30 - 13:45 AO-05-210 Khoshnood, Hamid افزاینده بر پایه قابلیت اطمینان شبکه Shirzad توزیع برق A Review of Triple Module Anahita Redundancy Techniques for 13:45 - 14:00 MT-17-25 Hosseinkhan, Behnam Dependable Design of FPGA- Ghavami, Mohsen Raji based Systems استراتژیهای بهینه سرمایهگذاری در زنجیره تأمین رقابتی با در نظر گرفتن -17-151 14:00 MT-17-40 Amir Radfar ریسک موفقیت و رویکرد قابلیت 14:15 اطمینان 14:15 - 14:30 Questions & Answers بهینهسازی چندهدفه-چندسطحی در سمیرا ایمانی، داوود شیشه شبکه لجستیک بازیافت آوار پس از MT-19-218 14:45 - 14:30 بری بحران تحت عدم قطعیت محمد منصفی مهربانی، امین پایش وضعیت روغن در مجموعه تولید و معماری، جاوید رضاپور انتقال قدرت خودرو با لحاظ قوانین جامع MT-12-53 15:00 - 14:45 طوری عناصر فرسایشی، آلودگی و افزودنی ساخت هانیپات صنعتی کم هزینه با امیر سیاحی،اشکان سامی AO-06-150 15:15 - 15:00 تعامل باال Shahrokh Jalilian, Mohammadreza تکنیکهای بهبود اتکاپذیری نرم افزار OT-00-141 15:30 - 15:15 Amini, Shirin Ranjbaran 15:30 - 15:45 Questions & Answers
51 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability Program and Safety Engineering Conference
RM- Methodology Areas (Poster)
Thursday, 18 February 16:00 - 17:15 Poster Room One
Risk Management Presentation Paper Title Authors Time Code Identification and evaluation of Majid Shakoorian, Hamid occupational hazards by job Babakpour, Mohammad safety analysis (J.S.A) method Entezam, Ali 16:00 - 16:15 MT-13-49 for fitters and welders using AleEisa, Sepideh Pareto & matrix method in one Sourori, Ali Farmani, Milad of the Oil & Gas projects in the Nabhani South west of Iran Introduction of A Modified Equation to Calculate the Static Bottom-Hole Pressure of Gas Majid Shakoorian, Hamid Wells to Elimination Babakpour, Mohammad Operational Risks at High H2S Entezam, Ali 16:15 - 16:30 MT-14-47 Gas Wells in Iran Based on AleEisa, Sepideh Hierarchy Risk Management Sourori, Ali Farmani, Milad Method Especially on SARS- Nabhani COV-2 (COVID-19) Pandemic Condition t شناسایی و اولویتبندی ریسکهای Mahdi Rahimdel Meybodi موجود در طراحی محصوالت با رویکرد MT-13-32 16:45 - 16:30 بهبود قابلیت اطمینان Hamid Reza. Ali AO-01- RBMDO of Thrust chamber by 16:45-17:00 Mohamadi, Alirezaa 113 Adaptive Sampling method Noorollaahi Elham Mahmoodi, Seyed Quantitative risk assessment of MT-13- Bagher Mortazavi, Omran 17:00-17:15 crude oil pipelines using Fuzzy 104 Ahmadi, Hasan Asilian Bow-Tie method Mahabadi, Ehsan Rezaieyan 17:15 - 17:30 Questions & Answers
52 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability Program and Safety Engineering Conference
OTH2- Methodology Areas (Poster)
Wednesday, 17 February 16:00 - 17:15 Poster Room One
Other Subjects Presentation Paper Code Title Authors Time A review of the definitions and criteria for assessing resilience 16:00 - 16:15 OT-00-187 علی رحیم آذر with a special approach in the field of mining پیشبینی رشد ابتالء به کرونا ویروس محمد نجفی، پیمان با استفاده از مدل رشد قابلت اطمینان AO-12-11 16:30 - 16:15 غالمی، سمانه الهیان Piecewise Crow-AMSAA
53 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
Oral Session
54 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV1 Paper ID: AO-03-77
Determination of shear strength parameters for a landslide by probabilistic back analysis – a case study in Iran
A. Johari1,*, Y. Peiro2 1 Associate Professor, Dept. of Civil and Environmental Engineering Shiraz University of Technology, Shiraz, Iran 2 Ph.D. Candidate, Dept. of Civil and Environmental Engineering Shiraz University of Technology, Shiraz, Iran * [email protected]
Abstract In this paper, the authors present a probabilistic back analysis of a recent landslide at a site on a highway in south of Iran. Information available from air photos, field observations and recent photographs indicated that the observed slope failure is relatively new, test pits were excavated in the area to investigate subsurface soil conditions. To account for the uncertainties in input parameters, the probabilistic back analysis approach was adopted. Soil strength parameters have been calculated using the Finite Element Method (FEM) codes program in MATLAB. Results, which agreed closely with the findings of the post-event investigations, showed a computationally more efficient back analysis approach. The improved knowledge of the geotechnical strength parameters gained through the probabilistic back analysis better elucidated the slope failure mechanism, which provides a basis for a more rational selection of remedial measures. Key words: Landslide; Shear strength reduction technique; Back analysis; Finite element method.
55 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV1 Paper ID: AO-03-69
Reliability Assessment of Modal Parameters in Order to Structural Damage Identification under Environmental Noises
Milad Jahangiri1,*, Mohammad Ali Hadianfard2, Mohammad Amir Najafgholipour2 1 PhD Candidate, Department of Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran 2 Associate Prof., Department of Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran * [email protected]
Abstract Nowadays, structural damage identification for improving the performance and safety level of the structures has high significance. Increasing the accuracy in terms of localization and quantifications of the structures may lead to decrease the rehabilitation costs. Hence, exhaustive and precise investigation in this regard is crucially considered. From a practical point of view, the presence of environmental noises is posed as a paramount trouble. Accordingly, the effect of uncertainty variables in dynamic analysis of the structure should be applied. Structural damage identification based on the vibrational response of the structure is one of the most common and least cost identification methods. Multiplicity agents, including measurement discrepancy, human error, environmental vibration, temperature variation, and etc. can influence the accuracy of the modal characteristics. In this research, reliability assessment of the modal parameters under noise contamination is conducted. For this purpose, reliability assessment of the modal parameters for damage identification upon two truss and frame structures is performed. Firstly, the accuracy of the structural damage localization and quantification of truss and frame without consideration the noise pollution, and secondly, with taking the different percentages of noise into account on natural frequencies and mode shapes has been examined. The obtained results show that the natural frequency random variable in confrontation of the environmental noises has higher uncertainty rather than mode shape random variable. Furthermore, with increasing the noise contamination in the objective function based on the modal parameter not only the accuracy of damage location has decreased, but also the precision of damage intensity has diminished. Therefore, the accuracy in natural frequency measurement can cause high quality and further transparency on the results of damage identification of the structures. Keywords: Reliability assessment, natural frequency, mode shape, damage identification, environmental noises.
56 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV1 Paper ID: AO-03-140
Estimation of failure probability in a railway embankment due to probabilistic distribution of precipitation based on the first-order reliability
Mohammad Mehdi Ahmadi, Shadnaz Kaheh*, Hamed Sadeghi Department of Civil Engineering, Sharif University of Technology, Azadi Ave, Tehran, Iran * [email protected]
Abstract Nowadays, climate changes are one of the environmental problems that lead to global warming, changes in precipitation patterns, and phenomena such as floods and droughts that can affect water flow and stability of engineering embankments. Besides, input variables for unsaturated slope analysis and design, including the intricate precipitation pattern, leads to inevitable uncertainty. Therefore, this study aims to evaluate the failure probability using a reliability approach in the distribution of different precipitation patterns. In order to achieve this goal, two types of rainfall distributions for the same time span and duration are applied to the model for numerical analyses of seepage and stability. Results are interpreted within a reliability assessing framework, where the statistical distribution be reported for the stability conditions of an unsaturated railway embankment subjected to transient flow. Eventually, a linear state function for the probability of failure under rainfall is obtained using the first-order reliability. The results reveal that the failure probability calculated from the precipitation distribution is more critical than that of the classical deterministic approach. The results provide insight into the risk assessment for precipitation according to a more reliable approach. Keywords: Stability analysis, first-order reliability, probabilistic rainfall distribution, failure probability, risk.
57 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV1 Paper ID: AO-03-127
Reliability Assessment of a Pitched Roof Steel Portal Frame Maryam Daei1*, Masood Mojarad2, Reza Karimi3
1Department of Civil Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan, Isfahan,Iran 2Department of Civil Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan, Isfahan,Iran 3Department of Civil Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan, Isfahan,Iran *[email protected]
Abstract Pitched roof steel frames are widely used in the construction of industrial buildings. The main advantages of this system include material and construction savings and more use of the covered spaces. For the pitched roof structures, the steel frames are usually composed of tapered members with variable cross section and rigid flexural joints, and are subjected to special snow and wind loadings. In recent years, with the advancement of technology, designs that only satisfy the minimum requirements of the codes are not enough significant, and designers are looking for more economical and reliable solutions. In this study, a pitched roof steel frame is designed and reliability analysis for the frame component is performed using first-order reliability method (FORM). The limit state functions are defined based on the failure modes of the frame components and then the reliability indices under governed load combinations are obtained and discussed. A sensitivity analysis is also performed to determine the influence of different load and resistance random variables. The obtained results can help to reach the optimal design for this type of structures based on the structural reliability approach.
Keywords: Pitched roof frame, Reliability index, FORM, Sensitivity analysis
58 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV1 Paper ID: AO-03-83
Reliability analysis of soil slope stability based on probable slip surface
Amir Gholampour1, Ashkan Ghazvinian2,*, Ali Johari3 1Assistant professor, Apadana Institute of Higher Education, Shiraz, Iran 2Undergraduate student, Apadana Institute of Higher Education, Shiraz, Iran 3Associate Professor, Dept. of Civil and Environmental Engineering, Shiraz Univ. of Technology, Shiraz, Iran * [email protected]
Abstract This paper presents new criteria for assessing the slope stability based on the slip surface development. In the proposed approach, the iteration ceiling in the elasto-plastic solution is set to a high number, to trace the slip surface either the slope is stable or not. In the iterative stress redistribution procedure, the maximum deviatoric plastic strain, which represents the soil slip surface, is recorded at two specific iteration numbers; the convergence and ending point. Then, the failure probability is acquired by calculating the ratio of slip surface length at the current condition to the length of the slip surface at the failure. Drained and undrained hypothetical slope cases are assessed to illustrate the implementation of the proposed approach. The results show that the suggested method can successfully determine the total probability of failure and the reliability index of the slopes, directly. Keywords: Slope stability; Reliability analysis; slip surface; Collapse criteria.
59 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV1 Paper ID: AO-07-115
Ensuring vehicle stability during a lane changing scenario using runtime verification approach
Fatemeh Yousefinejad Ravari1, Saeed Jalili2
1 Computer Engineering Department, 2 Electrical and Computer Engineering Faculty, Tarbiat Modares University, Tehran, Iran [email protected] [email protected]
Abstract Modern vehicles consist of more than 70 Electronic Control Units (ECUs), which are considered as the thinking brain of the vehicle. If any of these ECUs fails to operate due to an anomaly, it can cause malfunction in the vehicle, and consequently endanger the lives of the passengers as well as the pedestrians. Hence, most of ECUs are highly safety critical. Classical testing methods turned out to be insufficient in realizing full safety guarantees. Therefore, other approaches such as formal verification have been proposed. However, due to the uncertainty involved in the environmental interactions of vehicle, applying design-time verification alone is also inadequate to guarantee safety of vehicles. As a result, runtime verification which is the verification in combination with runtime monitoring, seems to be more appropriate method to ensure the safety of the vehicle. In this paper, runtime verification approach is used to guarantee the stability of vehicle during a lane changing scenario, which in modern vehicles is done through utilizing Electronic Stability Control (ESC) ECU. The proposed method is evaluated using CarSim and Matlab/Simulink simulation environment. The simulation results show that the proposed method can detect the violation of safety properties and ensure stability of the vehicle. Keywords: Runtime verification, Temporal logic, Safety analysis, Electronic stability control.
60 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC1 Paper ID: AO-09-75
GUI Development for SMART Deterministic Code for Homo-And- Heterogeneous Voxel Phantoms and Evaluation of the Results
Kamal Hadad1, Shirin Mokhtari2,*, Mohammadreza Nematollahi3
1 Professor, shiraz, iran 2 Student, shiraz, iran 3 Assotciate professor, shiraz, iran *[email protected]
Abstract In this study we decided to create a GUI based on MATLAB by using GUIDE tool for nuclear medicine Dosimetry in Homogenous and Inhomogenous area by SMARTEPANTS code. This GUI can write all Informations about Inputs in a text file and get data of cross-sections which need in SMART simulation. Keywords: SMARTEPANTS code, EPDL97 data library, nuclear medicine, Dosimetry, GUI.
61 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC1 Paper ID: AO-09-220
Investigation of reflector role in neutronic and control parameters of small modular reactor core using Monte Carlo modeling
Saeed Zare Ganjaroodi1, *, Hossein Khameh1, Nazaninzahra Raei1, Ehsan Zarifi2, Kamran Sepanloo2 1 Faculty of Engineering Science and Research Branch, Islamic Azad university, Tehran, Iran 2 Reactor and Nuclear Safety Research school, Nuclear Science and Technology Research Institute, Tehran, Iran * [email protected]
Abstract Due to the many advantages of small modular reactors, including high safety, easier commercialization, and higher efficiency, are the design, development and construction plans of many countries, especially the leading countries in the nuclear industry in the Stable, safe and economical energy production program. Hence, in this paper, an attempt has been made to analyze the role of reflectors in determining the control and neutronic parameters of the CAREM-25 advanced small modular reactor core using the code MCNPX2.7.0. code modeling. In this regard, the reactor core was modeled in two states of presence and absence of reflector to calculate and compare the K-factor, excess reactivity and neutron flux distribution in the both two states. Results illustrated that a significant volume of water as a reflector had a large effect on the neutron population of the core of this reactor and could increase the excess reactivity by about 20 (mK). Keywords: Small Modular Reactor (SMR), CAREM-25, MCNPX2.7.0, Neutron flux.
62 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC1 Paper ID: AO-09-104
Study of photon energy and diameter of gold nanoparticles in brain cancer radiotherapy
Mojtaba vahidpour, Sajad Keshavarz, Dariush Sardari Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran [email protected]
Abstract Due to the growing number of types of tumors and cancers across communities, the need for effective methods with fewer side effects is felt. The use of gold nanoparticles in radiation therapy due to its high atomic number increases the reaction cross-sectional between the photon and the target and increases the probability of photoelectric effect. By using to combine gold nanoparticles with other method therapies, it causes effects such as reducing the concentration of blood to create blood barrier, very high efficiency of absorption of therapeutic photons, reducing the toxicity of gold nanoparticles. The effective radius of the gold nanoparticles causes that they cross the blood barrier and provide more effect in the treatment of brain cancers. For this work, by using the energy – range relationships for electrons in material, we obtain the electron range in different photon energies and calculate the thickness in which the nanoparticle becomes a transparent environment. According to the study, it was found that If the eccentric range is 5 times the radius of the nanoparticle, the environment becomes transparent and the gamma photon is absorbed and the free electron passes. On the other hand, at a constant thickness, with the increase in energy, the number of electrons released will be significantly reduced. Keywords: Gold nanoparticles, photon energy, electron range, nanoparticle radius.
63 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC1 Paper ID: AO-12-206
Use of FXG radiochromic dosimeter to ensure the quality of irradiation of blood packages in irradiation chambers
Ebrahim Farajzadeh1,*, Sedigheh Sina1,2, mohammadReza Ghanbar-Pour2, Fatemeh Nowrouz-Alizadeh2 1 Nuclear Engineering department, Shiraz University, Shiraz, Ira 2 Radiation Research Center, Shiraz University, Shiraz, Iran * [email protected]
Abstract Blood transfusions are a serious and potentially dangerous treatment, and despite careful examination, blood transfusions are not safe for the recipient, and if the necessary precautions are not taken, the risks can be fatal. Stable lymphocytes in blood products can cause fatal transplant reactions against the TA-GVHD host. Prevention of this complication is possible only by direct irradiation of blood products before injection. Therefore, it is necessary to control the quality of radiation of blood packages before injection. In this study, the Fricke Xylenol Gel dosimeter has been proposed for this purpose. This dosimeter is a radiochromic chemical dosimeter that is equivalent to body tissue, and also allows the measured dose to be absorbed. This dosimeter can be used in the required dose range (25 to 50 Gy) to prevent transplant complications against the host. In addition, a simple and rapid method has been proposed to determine the absorbed dose in the FXG dosimeter, which shows that this dosimeter has the appropriate properties to control the dosimetric quality of blood radiation. Keywords: TA-GVHD, Fricke gel dosimeter, Dosimetry, Quality assurance, Irradiation of blood packages.
64 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Probabilistic Safety Analysis Session: PSA Paper ID: MT-10-79
Evaluation of Components Degradation Effect on the Risk Criterion of the Safety Systems of VVER-1000 NPP by Coupling Markov Maintenance Models and Fault Tree Method
F. Mohammadhasani, A. Pirouzmand, M. R. Nematollahi Nuclear engineering department, School of Mechanical Engineering, Shiraz, Iran *[email protected]
Abstract In this paper, the effect of both fast and slow degradation rates of the components is quantified on the risk criterion of the safety systems of a typical nuclear power plant (NPP). Degradation state at the component level is modelled using multi-state Markov method. Then by coupling fault tree (FT) method and Markov maintenance models, the risk measure is evaluated at the system level. In this study, degradation effect is considered on the unavailability of different functions of the two main safety systems of VVER-1000 NPP. The results show that at fast degradation, the systems unavailability for all functions increases sharply. In general, considering the degraded state for components under maintenance activities results in more realistic evaluation of the unavailability at the system level. Also, the system unavailability in Policy 3 is lower than that of Policy 2 and the system unavailability in Policy 2 is similarly than that of Policy 1 for both degradation rates. This is attributed to the characteristics of maintenance policies implemented at the component level. Keywords: Components Degradation, Systems Unavailability, Markov Model, FT Method.
65 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Probabilistic Safety Analysis Session: PSA Paper ID: AO-09-39
Time-variant reliability assessment of the passive heat removal system in VVER
M. Ebrahimian*, A. Pirouzmand, A. Rabiee
Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Iran *[email protected]
Abstract The use of passive safety systems has been considered as the most important candidate to improve the safety level of new generation power plants. However, the functioning parameters of the passive systems vary significantly over time and are extremely tied to uncertainty. Hence, the reliability assessment of these systems is one of the important open issues in the passive safety system analysis area. In this study, the reliability methodology for passive safety systems is applied to evaluate the functional reliability of the passive heat removal system (PHRS) of the VVER-1000 reactor. In the time- invariant part, an algorithm is proposed to overcome the numerical instabilities of the HL-RF algorithm of FORM. Results show that the proposed algorithm is simple, reliable, fast, and can find the reliability index with high efficiency and accuracy. In the second part, a time-variant reliability analysis method that combines the out-crossing approach (PHI2) and the FORM is developed and applied to analyze the PHRS. The results of this part demonstrate that the failure probability of passive safety systems is significant in terms of amplitude and its variation over time and must be considered in the design and operation of these systems in the nuclear industry. Keywords: PHRS, Functional Reliability, FORM, PHI2.
66 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Probabilistic Safety Analysis Session: PSA Paper ID: MT-10-71
Changes in Core Meltdown Frequency Due to Implementation of RCM Program on Safety Equipment of Bushehr Nuclear Power Plant
A. Varchandi1, M. Abbasi2,*, S. Kordalivand1
1Tavana Company, Tehran, Iran 2Faculty of engineering, Shahid Beheshti University, Tehran, Iran *[email protected]
Abstract Safety, reliability and maintenance are key issues in the operation of nuclear power plants. Proper and organized implementation of maintenance activities can provide a platform for the safe operation of the power plant. In This research we try to increase the reliability of power plant systems and equipment by optimizing maintenance activities by introducing the reliability-based maintenance method (RCM). In This article the different approaches in the RCM program implemented in nuclear power plants and tries to choose an operational and efficient method in Bushehr nuclear power plant. Hence, the conflicts between classical RCM and simple RCM have been raised and an attempt has been made to resolve these conflicts through a comprehensive model. In this paper, two different RCM methods based on engineering judgment and statistical analysis have been used and the effect of these methods on heart rate has been evaluated. The method of combining FTA and recursive FMEA to evaluate equipment and select critical equipment according to the depth of analysis optimally, used. In this method, by performing FTA and FMEA repeatedly at different levels of power plant analysis, critical equipment is identified using probabilistic safety assessment criteria (PSA). Keywords: PSA, Repair and maintenance, Reliability, FTA, FMEA, RCM
67 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Probabilistic Safety Analysis Session: PSA Paper ID: AO-09-175
Implementation of innovative technical measures to reduce the LRF and LERF values of a VVER-1000 nuclear reactor
Massoud Mohsendokht1,*, Mohammadjavad Jamshidi2 1 Faculty of Advanced sciences and technologies, Isfahan university, Isfahan, Iran 2 Energy engineering department, Sharif university, Tehran, Iran * [email protected]
Abstract The safety of nuclear power plants has always been of great importance in public and environment protection from probable disastrous nuclear events. Serious nuclear accidents have been few, but their consequences have caused heavy catastrophes. Fukushima accident demonstrated the susceptibility of generation II of nuclear reactors to the loss of power supply and indicated how easily the multiple safety layers of defense in-depth concept can be defeated. The lessons learned from this disaster were an alert for nuclear safety society to re-assess the performance of safety systems against site- specific extreme natural hazards and take additional measures for prevention or mitigation of the inevitable consequences. In this regard, innovative severe accident management measures including the provision of hardware and the development of procedures and structured guidance shall be adopted in order to return the plant to controllable state and mitigate the consequences of an accident. The objective of this research is to provide a novel severe accident management framework to cope with the risk of radioactive material release to the environment and to reduce the severe accidents contribution to the release frequency. In addition, a level 2 PSA has also been conducted to address the effectiveness of the proposed approach. Keywords: Level 2 PSA, SAMG, LRF, LERF, VVER-1000.
68 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Probabilistic Safety Analysis Session: PSA Paper ID: AO-09-178
IDPSA to Decrease Risk & Energy Consumption in a Typical PWR
Ebrahim Ghanbari1, Ataollah Rabiee2, Mohammad Reza Nematollahi3
1 Master Graduate, Shiraz University, Shiraz, Iran 2 Associate Professor, Shiraz University, Shiraz, Iran 3 Associate Professor, Shiraz University, Shiraz, Iran [email protected]
Abstract Integrating deterministic and probabilistic safety assessment (IDPSA) is one of the most commonly used issues in the field of safety analysis of power plant accident. It has also been recognized today that the role of human error in formation of these accidents is not less than systemic errors, so the human interference and system errors in fault and event sequences are necessary. The integration of these analytical topics will be reflected in the frequency of core damage and also the study of the use of water resources in an accident such as the loss of all electrical power of the plant (SBO). In this regard, the SBO accident was simulated for a pressurized water reactor using a deterministic analysis accompanied with operator's behavior (PSA) in controlling the accident. The results showed that the best performance of the plant operator would reduce the risk of accident by 10%, as well as a decrease of 6.82 liters / second of the water sources of the plant. Keywords: IDPSA, Human Error, SBO, Risk.
69 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Probabilistic Safety Analysis Session: PSA Paper ID: AO-09-174
Assessment of Operator Action Time in SBO Accident by Dynamic Event Tree (DET) for VVER-1000/V446 Nuclear Power Plant
M.E. Amirsoltani1,2, A. Pirouzmand1,2*, M.R. Nematollahi1,2
1 Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Shiraz, Iran 2Safety Research Center, School of Mechanical Engineering, Shiraz University, Shiraz, Iran * [email protected]
Abstract Operator performance has a key role in controlling the trend of the scenarios in nuclear power plant accidents. Assessment of operator has currently done by several methods which majority of them are static and they ignore timing in their analysis. Dynamic Event Tree (DET) is an approach which can simulate the scenarios dynamically. The strength of DET is to use deterministic and probabilistic models simultaneously to produce the scenarios. In this paper, to analyze the effect of operator action on the SBO accident in VVER-1000/V446 nuclear reactor, the operator action time is modeled by a Log-Normal distribution function with mean of 600 seconds. The role of operator in SBO accident is to open and keep opening the safety valves embedded over the pressurizer when the level of the coolant in Reactor Pressure Vessel (RPV) is beginning to reduce. This action decreases the primary circuit pressure and consequently the activation of passive safety systems. According to the results, the longest scenario is related to the opening of one pressurizer’s safety valves, the early operator action and availability of other safety systems. The results given in the time-state diagrams and the CDF-time profiles can support the operators with detailed data required for deep understanding of various possible evolution of SBO accident scenarios, their thermohydraulic characteristics and how the SBO accident progresses in the core. Keywords: Operator action, Dynamic Event Tree (DET), Probabilistic Safety Assessment (PSA), RAVEN code, SBO accident, VVER-1000/V446 nuclear reactor.
70 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Probabilistic Safety Analysis Session: ENV Paper ID: MT-03-130
Environmental Protection Plans (EPP) for Construction Projects
Fatemeh Azadi1, Ayoub Karimi-Jashni2
1Ph.D in civil and Environmental Engineering, Shiraz University, Shiraz, Iran 2 Ph.D in civil and Environmental Engineering, Shiraz University, Shiraz, Iran [email protected]
Abstract In this study, environmental protection plans are described. In addition, some of the environmental challenges arise during the implementation of projects are addressed and solutions to prevent and minimize these problems are outlined. Based on the research, it is necessary that the experts develop environmental protection plans according to the specific conditions of each region. In accordance, it is suggested that committees be set up in the environmental protection organization to oversee the implementation of the plans. Besides, it is suggested that phone numbers be provided for emergency reporting so that serious problems can be addressed as quickly as possible.
Keywords: Environmental protection plans, Construction projects, Environment.
71 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Environmental Impact Assessment Session: ENV Paper ID: MT-03-130
Environmental Protection Plans (EPP) for Construction Projects
S Fatemeh Azadi1, Ayoub Karimi-Jashni2 1Ph.D in civil and Environmental Engineering, Shiraz University, Shiraz, Iran 2 Ph.D in civil and Environmental Engineering, Shiraz University, Shiraz, Iran [email protected]
Abstract In this study, environmental protection plans are described. In addition, some of the environmental challenges arise during the implementation of projects are addressed and solutions to prevent and minimize these problems are outlined. Based on the research, it is necessary that the experts develop environmental protection plans according to the specific conditions of each region. In accordance, it is suggested that committees be set up in the environmental protection organization to oversee the implementation of the plans. Besides, it is suggested that phone numbers be provided for emergency reporting so that serious problems can be addressed as quickly as possible. Key words: Environmental protection plans, Construction projects, Environment.
72 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Environmental Impact Assessment Session: ENV Paper ID: MT-03-181
Evaluating the trend of daily precipitation changes using eioc.ir site during a long time series in Fars province
S.M.J. Nazemosadat1, Ali Ebrahimi2,*, Somayeh Shadkam3, Afsaneh Heidary4 1 Professor, the Atmospheric & Oceanic Research Center, Water Engineering Department, College of Agriculture, Shiraz University, Iran, Shiraz 2 Ph.D. Candidate of watershed management, Department of Forest, Range and Watershed Management, Science and Research Branch, Islamic Azad University, Tehran, Iran 3 Master of computer engineering, College of Engineering 2, Shiraz University, Iran, Shiraz 4 Ph.D. Candidate of agrometeorology, the Atmospheric & Oceanic Research Center, Water Engineering Department, College of Agriculture, Shiraz University, Iran, Shiraz * [email protected]
Abstract This study is to demonestrate the capability of the a webpage named as "eioc.ir" for evaluating trend in the precipitation data over Fars province, Iran for the period of 1981-2019.The webpage is equipted with some few features such as an online GIS- based databank, series of inter-connected software and a few processors. According to the users' selection, data of a desired region and a particular time-period are picked-up from databank to be processed instantaneously. The climatological data are mainly obtained by the well-known data-providers such as NOAA and ECMWF. By utilizing the capabilities of the "eioc.ir", daily precipitation records of the entire parts of Fars province are generated over the study period. After transferring these daily records into monthly timeseries, trend analysis is conducted for only the rainy months (Nov-Apr period). The positive trend is found to be 0.0018 mm/month, for all the rainy months. This positive trend is 0.0035, 0.0010, 0.0015, 0.0023, 0.0026 and 0.0014 mm/month for November, December, January, February, March and April, respectively. While maximum positive trend is associated with November, December has experienced the least of such trend. December. According to the Mann-Kendall test, the precipitation data has statistically changed during the study period. Key words: eioc.ir, Fars, CHIRPS, precipitation.
73 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Environmental Impact Assessment Session: ENV Paper ID: MT-03-177
Evaluating heavy metal concentrations in agricultural produces and soil irrigated with waste water in Shiraz using NAA and AAS methods
Kamal Hadad*, Sahar Biati, Javad Mokhtari 1 School of Mechanical Eng., Shiraz University, Shiraz Iran 2 Isfahan Research Center Isfahan Iran * [email protected]
Abstract In this study, to determine types of irrigating water impact on agricultural soil and produce, concentrations of trace elements including Cr, Ni and Zn in agricultural soil and produces in north west Shiraz are determined. Two well-stablished methods of neutron activation analysis (NAA) and Atomic Absorption Spectroscopy (AAS) were employed to analyze 16 samples of soil and produces. The results of NAA and AAS verify each other. Comparing elemental concentrations in this study with the previous study (conducted in the same site), indicates 100 percent increase in Ni and Cr concentrations over 10 years period. Meanwhile Zn concentration has not change notably. Keywords: Trace elements concentration, NAA, AAS, Waste water irrigation, Shiraz.
74 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Environmental Impact Assessment Session: ENV Paper ID: AO-09-120
Measurement of Heavy Metals Concentration in Iranian Tea Leaves Using Neutron Activation Analysis
Manouchehr Navvabi1, Ahmad Pirouzmand 1,*, Farshad Faghihi 1, Mehdi Rezvani-Fard2, Ehsan Salimi3
1 Department of Nuclear Engineering, Faculty of Mechanical Engineering, Shiraz University, Shiraz, Iran. 2 Atomic Energy Organization, Isfahan Miniature Reactor Research Institute, Isfahan, Iran. 3 Iranin Light Source Facility, Iran. *[email protected]
Abstract In this paper, tea leaves from nine farms have been investigated used Neutron Activation Analysis (NAA) in Isfahan Miniature Neutron Source Reactor (MNSR). The importance of this research is that the tea leaves have been investigated from the origin and certainly the source of contamination is better identified and can be a criterion for better comparison of Iranian and foreign tea. For instance, in the district of Northwest Lahijan (37.220322, 49.536664) where sample E was gathered, there were visible traces of element Cs. In other samples heavy metals were normal and below average daily human intake. Element As has been found in Sample G with concentration of 0.33 ppm. The combined levels of the three metals Sr, Fe and Ba reached 100 ppm and Zn produced a few ppm. Keywords: Pollution, tea leaves, neutron activation, Isfahan miniature reactor, heavy metal concentration, standard sample.
75 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Environmental Impact Assessment Session: ENV Paper ID: AO-05-197
Dispersion-Transport Simulation of Radionuclide Release from SBO Accident in Bushehr Nuclear Power Plant into Coastal Waters of Persian Gulf Using HYSPLIT and CROM Codes
Mansour Ahmadi 1, Ahmad Pirouzmand 2,*
1Graduate of Master of Nuclear Engineering, School of Mechanical Engineering, Department of Nuclear Engineering, Shiraz, Iran [email protected] 2 Associate Professor of Nuclear Engineering, School of Mechanical Engineering, Department of Nuclear Engineering, Shiraz, Iran *[email protected]
Abstract Emission of radioactive materials into the environment has detrimental effects on the environment and human health and its evaluation plays an important role in developing an emergency response plan in the event of an accident that is done to minimize the radiological effects of the accident. Therefore, it is necessary to look for an emergency response planning in case of an accident to reduce the effects of accidents on human and the environment. The dispersion and transport of radionuclides due to station blackout (SBO) accident in Bushehr nuclear power plant in the Persian Gulf waters are evaluated. First, using the HYSPLIT code, the most conservative possible scenario for the air pollution dispersal trajectory toward the waters of Persian Gulf is selected in 2018. Then, using the data of radionuclide emissions into the atmosphere given in FSAR, the deposited value of I-131 and Cs-137 particles on the Persian Gulf waters in 48 hours after the onset of release are calculated by HYSPLIT code. Finally, the CROM code is applied to determine the dissolved and deposition radionuclides in coastal waters of Persian Gulf. The results of CROM code show that the highest concentrations of I- 131 and Cs-137 in the waters of Persian Gulf in SBO accident are 216 kBq/m3 and 1170 kBq/m3, respectively. Keywords: Bushehr Nuclear Power Plant, CROM Code, HYSPLIT Code, Persian Gulf, Radionuclide Dispersion and Transfer, SBO Accident.
76 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-190
Comparative reliability study on simultaneous size and geometry optimal designs of steel bridges
Mohsen Shahrouzi1,*, Peyman Homami2, Atefehsadat Sadatnia2 1Faculty member of Kharazmi University, Karaj, Iran 2MSc. Student of Kharazmi University, Karaj, Iran *[email protected]
Abstract Optimal size and geometry design of steel bridges are studied as an important category of lifeline structures. A recent meta-heuristic called opposition-switching search is applied to this problem in addition to well-known particle swarm optimization, Grasshopper algorithm and Falcon optimization method. The methods have revealed optimal designs of a number of truss/bridge benchmarks followed by reliability assessment. In this regard, failure probability of each optimal design is evaluated by Monte Carlo Simulation using two sets of sampling to observe related convergence. Resulted failure probabilities are then determined and compared for the treated algorithms. Keywords: Monte Carlo Simulation, failure probability, truss bridge, geometry optimization.
77 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-152
Assessing the impact of road and environmental factors on traffic safety and accident risk
Seyyed Hossein Bakhshi1, Farshidreza Haghighi2,* 1Faculty of Civil Engineering, Noshirvani University of Technology, Babol, Iran 2Faculty of Civil Engineering, Noshirvani University of Technology, Babol, Iran * [email protected]
Abstract According to research, humans, roads and vehicles are the main components of traffic and transportation, each of which individually and also in combination plays a role in the occurrence of traffic accidents. This study evaluates the impact of road and environmental factors on traffic safety and accident risk. A case study was conducted in Babol city and using the information obtained from the traffic police and the road safety audit report as well as their analysis, accident hotspots were identified. The variables of weather conditions, sight distance and the condition of obstacles around the road (presence of guardrails) were examined using multivariate regression.The results showed that unfavorable weather conditions have significant effects on pavement conditions, sight distance, drivers' speed selection and therefore their safety. Decreased sight distance was associated with a decrease in mean speed and an increase in speed deviation. The results also showed that in the presence of the guardrail, when the shoulder width was sufficient, the drivers' speed selection increased. Keywords: Accidents, safety, weather conditions, sight distance, regression.
78 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-139
Severity of Urban Accidents According to the Collision Type and Lighting of the Road: Statistical Analysis and Modeling
Mohammad Esmaeilnia1,*, Abbas Babazadeh2, Amir Tabrizian3, Ali Moghadari4 1PhD Student in Transportation, School of Civil Engineering, University of Tehran, Tehran, Iran 2Associate Professor, School of Civil Engineering, University of Tehran, Tehran, Iran 3MSc Graduate in Transportation, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran 4MSc Graduate in Transportation, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran *[email protected]
Abstract The aim of this study was to investigate the factors affecting the severity of urban accidents. In this regard, accidents in District 4 of Tehran have been analyzed using Multinomial logistic regression model with 95% statistical accuracy. The dependent variable is accident severity at the two levels of injury/death and PDO and the independent variables include the collision type, the vehicles of collision and the lighting condition. The results of this study show that the probability of injury accidents compared to PDO during the day is 46.6% less than at night. Regarding the relationship between the severity of the accident and the collision type, the probability of injury compared to PDO in front-to-side collision is 44.2% less than head-on collision and the probability of injury compared PDO in sideswipe collisin is 48.2% less than head-on collision. In addition, the probability of injury compared to PDO in rear-end collision is 50.8% less than in head-on collision and the probability of injury compared to PDO in rear-to-side collision is 77.3% less than in head-on collision. Regarding the relationship between accident severity and the vehicles of collision, the probability of injury compared to PDO in two or more vehicles colliding with each other is 40.4% less than the collision with a fixed object/off-road/overturning and the probability of injury compared to PDO in vehicle/Motorcycle collision with motorcycle is 14.2 times higher than collision with a fixed object/off-road/overturning. The probability of injury compared to PDO from a car/motorcycle collision with a pedestrian is 20.2 times higher than that of a fixed object/off-road/overturning. It is also observed that the modeling result shows a completely similar pattern to the pre-modeling statistical analysis. Keywords: Multinomial logistic regression model, urban accidents, Accident severity, Collision type, lighting condition.
79 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-72
A Multi-Occurrence Seismic Hazard Life-Cycle Cost Retrofit Optimization Framework For RC Refinery Infrastructures
Pedram Omidian1, Naser Khaji2,* 1 Faculty of Civil and Environmental Engineering, Tarbiat Modares University, P.O. Box 14115–397, Tehran, Iran 2 Department of Civil and Environmental Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan *[email protected]
Abstract The life-cycle cost analysis (LCCA) of structures under seismic hazard is a critical issue in earthquake engineering. LCCA is known as the only suitable tool for assessing the structural performance when the structure is expected to be functional for a long period of time. The Reinforced Concrete (RC) refinery infrastructure structures, especially in hazard-prone regions, may face multiple occurrences of seismic hazard during their lifetime. The objective of this study is to propose a life-cycle cost retrofit optimization framework to select the retrofit pattern. A typical RC refinery office structure is considered. Different retrofit plans, retrofit process strategy, thicknesses and jacketing materials are selected. This framework is applied to a realistic RC refinery office structure exposed to earthquake hazard to determine the optimal retrofit strategy that reduces the overall lifecycle cost of the structure. Results indicate the significance of considering different retrofit strategies for lifecycle cost analysis of infrastructure systems. Keywords: Life-cycle cost, Retrofit optimization framework, Composite, retrofit strategy
80 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-107
Optimizing Fire Hydrant Layout Based on Uncertainty Analysis
Keyvan Habibi1, Seyyed Hosein Afzali2,* 1MSc of Hydraulic Engineering, School of Engineering, Department of Civil and Environment Engineering, Shiraz University, Shiraz, Iran [email protected] 2Associated Professor, School of Engineering, Department of Civil and Environment Engineering, Shiraz University, Shiraz, Iran *[email protected]
Abstract Fire is a terrifying disaster that can cause serious casualties and financial losses. The water distribution network should be able to supply fire hydrant demand. Reliability is one of the most important features and indicators in the water distribution network in the management aspect of view. Uncertainty analysis should be done to see if there is enough reliability. To check the reliability of the water distribution network while facing fire an uncertainty analysis has been done with different scenarios to calculate and optimize the number and location of fire hydrants concerning the nearest Euclidean distance to nodes. The model has been simulated in WaterGems. The simultaneous fire would be observed. The analysis type is an extended period simulation (EPS) since it is more realistic. Solving fire hydrants number and location-allocation have been done by data mining methods. The different situation of access and coverage has been analyzed. A comparison between NFPA codes and Iranian standards and Codes have been done that suggest to review and edit Iranian standards and Codes. Keywords: Fire hydrant, Uncertainty analysis, Reliability, Clustering, K-Medois, Water distribution network.
81 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-165
Reliability of the Determining the Minimum Magnitude in a Probabilistic Seismic Hazard Analysis
Sasan Motaghed*1, Ahmad Reza Fakhriyat2
1Assistant Prof., Civil Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran. 2M.Sc., Civil Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran. *[email protected]
Abstract One of the inputs of probabilistic seismic hazard analysis (PSHA) is the minimum magnitude of damage to buildings in the considered region. Recent studies have shown that the choice of minimum magnitude can affect the results of PSHA. That is, if the minimum magnitude value is selected low, the PSHA will be overestimated. Therefore, it is important to choose the minimum magnitude value in such a way that can cause damage to the structure. Obviously, the minimum magnitude of damage to the structure depends on the characteristics of the structure and the earthquake. The mechanism of occurrence of earthquakes in each region is such that earthquakes with different characteristics can occur. Therefore, in each region, having the range of earthquake changes, it is possible to obtain an earthquake magnitude that can bring the structure to different performance levels. If such magnitude is available, PSHA can be calculated more accurately.
Keywords: truncated distribution, reinforced concrete structure, seismic performance level, interval number
82 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-171
Evaluation of the Reliability of Steel Structures at the Functional Performance Level Sasan Motaghed1*, Vahid Barzian2, Amin Mehrabi-Moghaddam3, 1Assistant Prof., Civil Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran. 2M.Sc., Civil Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran. 3Maroon Dam Power Plant & Irrigation Network Operation Company, Behbahan, Iran [email protected]
Abstract The theory of structural reliability plays an essential role in the requirements of design codes criteria and can turn all kinds of uncertainties into mathematical relationships and incorporate safety and performance considerations into the analysis or design process of structures. In this study, using the theory of reliability and incremental dynamic analysis, the seismic performance of steel structures is evaluated. The studies on the level of safety performance (design level) in accordance with the definitions of Regulation 2800 of Iran and for three structures of 3, 5 and 8 floors of steel that are loaded according to the regulations of Iran and Designed, done. The results show that the coefficient of confidence index calculated for three- and five-story structures is greater than the minimum values specified in the valid global regulations and the mentioned structures have sufficient safety.
Keywords: Reliability Theory, Incremental Dynamic Analysis, Steel Structure, Target Confidence Index.
83 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC2 Paper ID: AO-09-200
The function and subcritically analysis of core catcher as an accident management system in VVER-1000 (AES-92) NPP
Masoud.Nasouri, Koroush.Keshtkar, Seifollah.Vahdanifar
Project manager of BNPP2-3, Bushehr, Iran [email protected]
Abstract The core catcher is the main component of VVER-1000 NPP is designed to retain and to cool liquid and solid fragments of the damaged core, reactor pressure vessel parts, and reactor internals during severe accidents with core melting. The efficiency of cooling the molten core of a reactor by safely removing the heat load from the molten metal mirror, ensuring the elimination of vapour explosions leading to the destruction of the localization area of accidents, the reactor cavity and the containment is assessed in this study. Besides, the subcriticality for three stage of core catcher function during severe accident management have been analysed using MCNPX code. The results show the safety and efficiency of the VVER-1000 (AES-92) has been increased due to core catcher installation to manage the severe accident. Keywords: Keywords: Core Catcher, management, subcriticality, MCNP, VVER-1000 (AES-92).
84 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC2 Paper ID: AO-09-117
Control System Design for a Supercritical Water Nuclear Reactor Using Robust Sliding Mode Method
G.R. Ansarifar1,*, M. Hajipour2
1Department of Nuclear Engineering, Faculty of Physics, University of Isfahan 2Department of Nuclear Engineering, Faculty of Physics, University of Isfahan *[email protected]
Abstract Dynamics of a nuclear powerplant are nonlinear and variable with time. Therefore, designing a control system that sets the output power of the reactor and forces it to follow the desired load is complicated. The reactor and turbine in this study have a strong coupling, thus the classic and second order sliding mode conroller are sepreately simulated for the plant and are compared with PI controller in previou studies. It is shown that the PI controller has normal accuracy and instability in the presence of disturbance but has small computational cost, classic sliding mode has higher accuracy and stability and has moderate computational cost but its main drawback is chattering phenomenon, second order sliding mode has high accuracy and stability but has a high computational cost. Keywords: Supercritical Water Nuclear Reactor, Point Kinetic Model, Sliding mode Controller.
85 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC2 Paper ID: AO-09-51
Safety Assessment of Performing Irradiation Tests on Domestic Fuels in Tehran Research Reactor Core
Saiedeh Safaei Arshi*, Seyed Mohammad Mirvakili, Hossein Khalafi
Nuclear Science and Technology Research Institute, Reactor and Nuclear Safety research school, Tehran, Iran [email protected]
Abstract Following fabrication of domestic fuels for operating and under construction nuclear reactors in Iran, evaluation of thermo-mechanical behavior of these fuels during irradiation in the reactor core and also performing post irradiation experiments are essential. Currently, Tehran Research Reactor (TRR) with appropriate neutron flux is the sole operating research reactor in the country which has capability to be used in fuel tests for during irradiation experiments and also to irradiate fuels to desired burn-up level for post irradiation experiments. In this study, possibility of irradiation of rod-type fuels, with dimension and enrichments which differ with TRR's fuel, in one of irradiation position of the core is evaluated from neutronics and thermal-hydraulics point of view. The results reveal that by choosing appropriate core power and irradiation position in the core, all neutronics and thermal-hydraulics safety parameters of the resultant mixed core will be within safe limits stated in TRR FSAR. Keywords: Tehran Research Reactor, Fuel Irradiation, Safety Assessment, Rod-type fuel.
86 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC2 Paper ID: AO-09-24
Investigation of the Natural Circulation Flow Map in NuScale Small Modular Reactor
Seyed Ali Hosseini1,*, Reza Akbarib2, Amir Saeed Shirani1, Francesco D'Auria3
1 Faculty of Engineering, Shahid Beheshti University, Tehran, Iran 2 Department of Energy Engineering & Physics, Amirkabir University of Technology, Tehran, Iran 3 GRNSPG/DESTEC, University of Pisa, Pisa, Italy [email protected]
Abstract Natural Circulation (NC) is an important mechanism in several industrial systems and knowledge of its behavior is of interest to nuclear reactor design, operation and safety. The main safety issue in present nuclear reactors is to ensure the sufficient removal of decay heat during accidents. Recently, Small Modular Reactors (SMRs) have increasingly received a lot of positive attention and even several types of these reactors are in different stages of design and construction. Some of this SMRs such as NuScale are designed to operate in full NC mode as the main mechanism of the primary coolant drive force for heat removal from the reactor core during normal operation. The present study deals with investigation of Natural Circulation Flow Map (NCFM) in NuScale reactor as one of the SMRs that operate in full NC mode. At first, NuScale reactor elements are modeled with RELAP5 thermal-hydraulic code. Then, after the verification of the steady-state modeling, the operational point of the NuScale reactor is indicated in NCFM that is based on the database of different PWR simulators (gathered from the experimental test facilities). The evaluation of Natural Circulation Performance (NCP) of this reactor is proved the good design of NCP during normal operation. Keywords: Natural Circulation Performance (NCP), Integral Small Modular Reactors, Full Natural Operating Reactors, RELAP5.
87 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC2 Paper ID: AO-09-50
Evaluation of the Safety Systems of Tehran Research Reactor Fuel Test Loop during Loss of Flow Accident
Saiedeh Safaei Arshi*, Seyed Mohammad Mirvakili
Nuclear Science and Technology Research Institute, Reactor and Nuclear Safety research school, Tehran, Iran *[email protected]
Abstract In order to enhance applicability of Tehran Research Reactor (TRR) for irradiation test of nuclear fuel and materials and considering TRR potential to provide required neutronic and thermal hydraulic conditions for irradiation tests on domestic fuel samples of research reactors, TRR fuel test loop with 10 bar nominal pressure and 20m3/h nominal flow rate is designed and fabricated to simulate thermal hydraulic conditions of the desired research reactor. In this paper, consequences of loss of flow in the loop due to primary pump breakdown are investigated and the functions of safety systems in response to this accident to provide continuous cooling of the fuels under test and mitigate any undesirable consequence are evaluated. In this regard, the probable scenarios are simulated using a RELAP5 model and the ability of the safety features of the loop to prevent any damage to the fuels under test is evaluated. Keywords: Tehran Research Reactor, Fuel test loop, Safety evaluation, Loss of flow accident.
88 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC2 Paper ID: AO-09-125
Simulation and Analysis of the Coolant Mixing Test within the Reactor Pressure Vessel of BNPP Using ANSYS CFX 18.0
Mohammad Khalvandi1,*, Mohammad Bagher Ghofrani2, Mohammad Reza Nematollahia3, Hassan Saadati1
1Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Shiraz, Iran 2Group of Nuclear Engineering, Department of Energy Engineering, Sharif University of Technology, Tehran, Iran 3Safety Research Center of Shiraz University, Shiraz, Iran *[email protected]
Abstract There are different parameters such as increase or decrease of heat removal from primary circuit which affect the coolant mixing phenomena in the vessels of pressurized water reactors (PWRs). Determination of mixing level is very important from reactor safety and control aspects. In this study, the thermal hydraulic test of coolant mixing within the reactor pressure vessel of Bushehr nuclear power plant (BNPP) has been simulated (3-D modeling) using ANSYS CFX 18.0. In this test, the fluid mixing due to primary circuit heat removal decrease has been investigated and the goal of this research has been defined as finding the coolant temperature distribution, computing the primary circuit loops mixing coefficients and other thermal hydraulic parameters of coolant in the whole reactor zones specially the reactor core which is the most important. To achieve this, the geometry of whole reactor considering all components have been modeled and the governing equations of reactor flow field (the Reynolds Averaged Navier-Stokes equations utilizing SST k-ω turbulence model) have been solved in CFX. Comparison of simulation results and experimental results of BNPP startup test shows the average error of 6.45 % and 10.92 % for mixing coefficient of loops and core inlet, respectively. According to the implemented simplifications, the results have good accuracy. Keywords: Coolant mixing, Reactor pressure vessel, BNPP, Coolant temperature distribution, Mixing coefficient, CFX.
89 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Reliability-Centered Maintenance Session: RCM Paper ID: MT-12-114
Improving the Reliability of Complex Systems Using Analyses Obtained From of Design Structure Matrix and Interactive Failure Detection Procedures
Mehdi Karbasian1,*, Farzaneh Sharifi Sahi2 1 Associate Professor, Faculty of Industrial Engineering, Malek Ashtar University of Technology, Shahinshahr, Iran 2 M.Sc., Faculty of Industrial Engineering, Malek Ashtar University of Technology, Shahinshahr, Iran *mkarbasi.mut-es.ac.ir
Abstract The process of development and expansion of advanced industries reveals the need to implement more and more predictive methods in readiness to deal with possible failures. With complexities inherent in systems, having a proper and all-embracing model of the entirety of a system is not readily possible. Design structure matrices (DSM) are regarded as great help in communicating, comparing, and integrating partial system models. As there are numerous relationships among subsystems in complex systems, it is expected that interactive failures occur giving rise to problems and incremental or abrupt failures in the system as well. Correlational dependent failures, commonly known as interactive failures, most frequently occur in mechanical systems. In this study, we have exploited DSM for identifying interactive failures and the relationships that exist among different components in complex systems. The latter matrix is generally used in industries for observing the strengths of existing relationships among interacting elements. From another perspective, by analyzing the relationships among elements and identifying coils and curls, it is possible to investigate the existing nodes in loops. Implementing this procedure leads to identifying critical components and interactive failures in the system, consequently bringing about enhanced reliability. Keywords: Reliability, Complex systems, DSM, Interactive Failure.
90 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Reliability-Centered Maintenance Session: RCM Paper ID: MT-12-13
Identify the Location of the Bearing Damage Using a One- Dimensional Convolution Network
Mohammad Ali Farsi Aerospace research Institute, Ministry of Science, Research and technology, Tehran, Iran [email protected]
Abstract Bearings are one of the most sensitive and important parts of rotary machines such as turbines and engines. The most common cause of stopping and repairing process in rotary machines is bearing damages. Due to its irreparable damage, condition monitoring methods, especially vibration measurement, are usually used to determine the condition and time of repair or replacement of bearings. Interpreting the recorded vibration pattern and identifying the fault is the most important task for the maintenance team. Interpreted vibrations can be carried out by different types of methods, and Fourier integrals are commonly used. In this research, using a deep learning method as one-dimensional convolution network, while distinguishing the defective part from the healthy one, the location of the injury is also determined. The data recorded by the Case Western Reserve University Bearing Data Center were used to train and evaluate the proposed model, and the results show an accuracy of more than 99.5% in identifying the damaged part and the location of the damage. Keywords: Bearing, Deep Learning, Damage identification.
91 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Reliability-Centered Maintenance Session: RCM Paper ID: MT-12-97
Proposing Optimal Reliability-Centered Maintenance Strategy Based on Failure Modes and Effects Analysis in Power Distribution Systems
Seyed MohammadHosein Enjavimadar1, Mohammad Rastegar2,*
1Master student, School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran 2Assistant Professor, School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran *[email protected]
Abstract Through to the impressive development in the electricity distribution network, the managers of the system must be able to handle the costs of the network effectively. Practical implementation of reliability-based maintenance is one of the way to manage this concerning. In this work, we present an optimization model based on energy not supplied of electrical energy feeders to select optimal maintenance strategies. We also use the multi-criteria decision-making method of relative interval analysis to prioritize failures in the network. Hotline, coldline and neutral are among the strategies to be implemented in this article. Six types of failure modes in network equipment such as insulation failure, jumper failure, conductor failure, switch failure, transformer failure and cable failure have been studied and cold line, hot line, cold line, hot line, neutral and hotline strategies is applied to each according to the optimization model respectively. Keywords: Maintenance, FMEA, RPN, Reliability, Distribution system.
92 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Reliability-Centered Maintenance Session: RCM Paper ID: MT-12-116
A New Approach to Reliability-Centered Maintenance Using Artificial Intelligence Tools
Majid Mardani shahri1, Abdolhamid Eshraghniaye Jahromi2,*, Mahmoud Houshmand2 1Ph.D. student, Sharif university of technology, Tehran, Iran 2Professor, Sharif university of technology, Tehran, Iran *[email protected]
Abstract This research seeks to improve the performance of reliability-centered maintenance (RCM) processes using artificial intelligence tools. RCM is a systematic methodology for determining the most effective and efficient maintenance management program that can be used for a system or component. The two main processes of this methodology include selecting the critical equipment of the system and determining the appropriate maintenance program for this equipment. In order to improve the first process, a combined solution using the group AHP method and fuzzy inference system is proposed. In order to benefit from artificial intelligence tools in the second process, a combined solution is proposed using the k-means clustering algorithm and VIKOR method in the Pythagorean fuzzy environment. The proposed approach was implemented in a gas refinery and the results were analyzed. Creating intelligence and learning capability in RCM processes will lead to the storage of valuable knowledge, reduce the time and cost required to implement RCM, and increase the accuracy and success rate of its implementation. Keywords: Reliability-Centered Maintenance, Fuzzy Inference System, Clustering, FMECA, Multi-Criteria Decision-Making .
93 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Reliability-Centered Maintenance Session: RCM Paper ID: MT-12-213
Asset Management Off-Grid Solar Systems through FMEA Method
Amir hossein Asghari*, Mojtaba Ayaz, Mahdi Marzbani, Vahid Baghishni khorasan Electric Distribution Co, Mashhad, iran *[email protected]
Abstract In recent years, fundamental changes in the design and production of solar system equipment in the world continue to grow, upgrade and even transform technology. On the other hand, due to the compatibility of these systems with the environment and the need for small investment and availability around the world, it has become one of the most important sources of energy production. Therefore, governments pay special attention to power supply to remote and remote areas of the network through these energy sources(Separately from the power distribution network).Therefore, these systems are part of a country's physical assets that in order to improve the productivity and management of these assets, it is necessary to perform repairs and maintenance optimally. This requires clear instructions and a smart method that first of all should review and predict the common defects of these systems and then provide practical solutions to eliminate defects or prevent them. In this paper, for the first time, using a case study of practical data utilized from systems disconnected from the network (operational scope of Khorasan Razavi Power Distribution Company) has reached a practical and accurate model that increases the life of these systems, stability and increase the reliability of the local electricity network. Keywords: FMEA, PV Systems, RPN, Physical assets management.
94 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Reliability-Centered Maintenance Session: RCM Paper ID: MT-12-185
A New Index for Distribution Network Components Ranking for Reliability-Centered Maintenance Programming
Mina Mirhosseini, Farshid Keynia Department of Energy Management and Optimization, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran [email protected]
Abstract Distribution networks, as an important part of the power system, must operate within an appropriate range of reliability and security. An appropriate maintenance strategy based on reliability and availability of distribution system components and equipment is the best way to achieve these goals. This strategy is known as Reliability Centered Maintenance (RCM). Due to limited budget, maintenance activities applying are neither possible nor logical for all components of the system. Therefore, most resources should be allocated to the most important and sensitive components of the system. This paper introduces an analytical method for prioritizing distribution system components by introducing a new cumulative reliability factor. This new factor includes various reliability indicators and will show that the prioritization sequence obtained by this method works better in saving the budget and ensuring the reliability of the system than other methods. Once critical components have been identified, an efficient mechanism is needed to identify the best and most cost-effective preventive maintenance method. The proposed model is implemented on a standard 33-bus distribution network. Keywords: Distribution Networks; Critical Components; Preventive Maintenance Prioritisation; Reliability-Centered Maintenance.
95 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Energy Session: ENR Paper ID: AO-05-57
A Practical Method for Reliability-Based Maintenance Scheduling to Enhance the Reliability of the Distribution Network
AmirReza Yari1, Hassan Moradi CheshmehBeigi1,2,*
1 The Great Tehran Electricity Distribution Company, Tehran, Iran. 1 Electrical Engineering Department, Razi University, Kermanshah, Iran. 2 Industrial Intelligent Systems Research Center (IISRC), Razi University, Kermanshah, Iran. *[email protected]
Abstract Reliability centered maintenance (RCM) is an efficient method for effectively improving network reliability indices and optimal management of financial capital. This method is an effective step to improve the reliability of critical equipment and the overall performance of the system, which can reduce the costs of system investors. In this paper, a practical model for improving the reliability indices of the distribution network system by considering the weight function of the reliability indices of the System Average Interruption Frequency Index (SAIFI), the System Average Interruption Duration Index (SAIDI) and the Expected Energy not Supplied (EENS) is proposed. In this method, using data mining of geographical information system (GIS) and information of software electrical network operating expert (ENOX), the reasons for failure of each element (lines and protective equipment) and the average repair time of each of them are determined. Also, on this basis, the preventive maintenance (PM) scheduling and related operational activities are determined separately for overhead line, underground line and power switches and are recommended for PM planning. A combined genetic algorithm and particle swarm optimization (GAPSO) has been used to optimize the problem. The efficiency of the proposed method is demonstrated by performing a simulation on a medium voltage feeder from the network of the Great Tehran Electricity Distribution Company (GTEDC(. Keywords: Reliability-based maintenance (RCM), preventive maintenance, particle swarm optimization.
96 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Energy Session: ENR Paper ID: AO-05-10
Assessing the Capacity Credit of RPPs in the Power Network under the Management of ZREC Using GA Analysis and Reliability Indices
Siavash Yari1,*, Reza Noroozian2, Hamid Khoshkhoo3, Mohammad Akhlaghi1
1Zanjan Regional Electric Company, Zanjan, Iran 2Department of Electrical Engineering, Faculty of Engineering, University of Zanjan, Zanjan, Iran 3Department of Electrical Engineering, Sahand University of Technology, Tabriz, Iran Email Address of the Corresponding Author *[email protected]
Abstract The concept of capacity credit has been introduced as a quantitative criterion for determining the capacity of renewable power plants (RPPs) to meet the demand load in the power grid. In this paper, using generation adequacy (GA) analysis based on Monte Carlo stochastic simulation and reliability indices, the amount of capacity credit is calculated for installed and uninstalled wind and solar renewable power plants (future projects) of the power grid under the management of Zanjan Regional Electric Company (ZREC). For this purpose, the hourly generation and consumption information of 2019 and statistical data of the last three years of equipment outage (transmission lines and power transformers) have been used to model network load behavior, network generation and equipment outage planning. Also, a suitable method for modeling adjacent areas has been proposed to analyze GA and calculate capacity credit in an area of a large power grid (Iran Grid). DIgSILENT PowerFactory software and study model (deck) of Zanjan regional electric network at the transmission and super-distribution level have been used to perform simulations. The results of the simulations show the efficiency of the proposed method for assessing the validity of capacity credit and GA in the power network under study. Keywords: credit capacity of renewable power plants, generation adequacy, reliability.
97 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Energy Session: ENR Paper ID: AO-05-103
Investigating the Effect of Wind Power Uncertainty on Unit Commitment Risk Evaluation of Power System Connected to Wind Farm Moslem Geravandi1, Hassan Moradi CheshmehBeigi2,*
1 Electrical Engineering Department, Razi University, Kermanshah, Iran. 2 Industrial Intelligent Systems Research Center (IISRC), Razi University, Kermanshah, Iran. * [email protected]
Abstract Given the importance of power system reliability, this paper presents a new analytical model for evaluating unit commitment risk (UCR). The proposed model is based on the risk area has been developed to study the contribution of wind power to the unit commitment risk assessment. In the proposed model, unlike the presented models in previous researches, taking into account the wind power uncertainty, an accurate numerical value is obtained for the unit commitment risk, which allows more accurate quantification of the unit commitment risk. To evaluate the efficiency of the proposed method, the unit commitment risk in the RTBS system is evaluated by considering a wind farm connected to it. Results show that the proposed method is more efficient than the conventional method. Keywords: Unit commitment risk, Risk area, Wind power, Uncertainty, Reliability.
98 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Energy Session: ENR Paper ID: AO-05-209
Investigating the reliability indicators in the jihadi plan of resilience of Gilan electricity distribution network by reducing the SAIFI index
Ali Haghighat*, Sirus Hedayat Nejad, Ebrahim Khoshnood Gilan - Rasht Electricity Distribution Company *[email protected]
Abstract In order to ensure future growth recognition and respond to the growing demand for electricity consumption with the aim of economic optimization, the necessary grounds can be provided by using network accident statistics and considered in operations. Exploitation criteria can be used optimally in network design and development, which will be very economical. In this article, the effect of repair measures in the resilience jihadi plan on the statistics of network incidents and network outages and the effects of climatic conditions in the performance of equipment as a case study in the lines of Gilan Electricity Distribution Company, one Rasht occurred. And according to the scientific and practical experiences of many years, the requirements for operation and planning of repair methods on electricity distribution networks according to the needs of society and electricity subscribers, taking into account standard and economic parameters, which are the most important tasks and goals of distribution companies to satisfy Subscribers from the electricity industry have been investigated. Defects that lead to destructive effects on the balance and distribution of network load, which are the main task for consumption centers, have also been investigated, and the effects, disadvantages, and solutions for eliminating defects and suggestions in this regard have been discussed. To be. With the expansion of distribution networks and the increase in the number of electricity subscribers, the construction, control and maintenance of these networks has had many serious challenges. Considering that in recent years, effective measures have been taken at the level of Gilan Electricity Distribution Company, including the academicization of engineering and operation units, as well as the establishment of monitoring units, the creation and updating of feeders maps in GIS, and the identification of weaknesses. The network in terms of electrical and mechanical, as well as network optimization, etc. pointed out. Given that this design examines all the problems, shortcomings and strengths of the network from different angles, so it provides the possibility that the design In the form of plans for forecasting the growth
99 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
of load, geographical location, centers of gravity, economic, industrial and urban policies, for the future of the region and in order to implement them, long-term planning and investment must be done. First, the reliability index is introduced and its important role in the amount of undistributed energy is mentioned. Then, an analysis of the number of medium pressure feeders disconnected in Gilan Electricity Distribution Company - Amor One Rasht is presented and then the feeders that have the most impact on the SAIFI index are identified.
Keywords: Distributed Energy, SAIFI Index, Repairs, Network Outages.
100 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability Oral Session Abstracts and Safety Engineering Conference
Subject: Energy Session: ENR Paper ID: MT-13-211
Assessment of Distribution Network Resilience in the Presence of Photovoltaic Sources Reza Saberi1*, Mohammad Jamalirad1, Reza Izadpanah1, Hamid Falaghi2 Mostafa Esmaeeli3
1South Khorasan Electric Distribution Company, Birjand, Iran 2Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran 3Faculty of Computer and Industrial Engineering, Birjand University of Technology, Birjand, Iran [email protected]
Abstract Low probability and high impact events, which cause high annual damage, seriously threaten the health of distribution networks. Therefore, all over the world, it is necessary to pay more attention to the issue of increasing network resilience and continuity of electricity supply. In modern distribution networks, due to the increasing photovoltaic sources in distribution networks, an alternative way of supplying loads when the main network fails and enhancement network resilience, is the use of photovoltaic sources. In this paper, first modeling the natural disasters including flood and storm are determined. Then in order to investigate the effect of photovoltaic sources on the resilience of the distribution network, a new index based on load supply resiliency and photovoltaic sources resiliency in the presence of photovoltaic sources is formulated. Finally, the performance of the proposed approach is demonstrated by performing numerical studies on a practical distribution system.
Keywords: Distribution Network, Resilience, Natural Disasters, Photovoltaic Sources
101 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Energy Session: ENR Paper ID: MT-10-133
Sensitivity Analysis on the Effect of the Pre-fault Grid Status on the Occurrence Frequency of Grid-Related Loss of Offsite Power Using Hybrid Method
Shahabeddin Kamyab1, Mohammadreza Nematollahi2,*, Faramarz Yousefpour3 1Ph.D. Candidate, School of Mechanical Engineering, Shiraz University, Shiraz, Iran. 2 Professor, Mechincal Enginering Faculty, Shiraz University, Shiraz, Iran 3 Associate Professor, Nuclear Science and Technology Research Institute, Tehran, Iran *[email protected]
Abstract Grid-Related Loss of Offsite Power (GR-LOOP) events significantly contributes in the frequency of occurrence of LOOP, and consequently, total Core Damage Frequency of Nuclear Power Plants (NPPs). Thus, the stability and security assessment of the connecting transmission grid to the NPP is of considerable importance in nuclear safety studies.In this study, it has been attempted to study the effect of pre-fault status of the grid on the reliability of the offsite power. For this, the sensitivity analysis cases have been evaluated to estimate the frequency of occurrence of GR-LOOP, using the Hybrid method. To assess the effect of grid arrangement, calculations have been performed for five chosen locations of the existing NPPs in the New England Test System grid, assuming moderate load flow in the grid. GR-LOOP frequencies in the base case have been evaluated via the development of 2482 probabilistic post-fault sequences (and simulation of the related 680 dynamic scenarios), as 3.06, 5.87, 8.15, 6.25 and 8.40 (E- 04/operating-year), for G02, G03, G06, G08 and G09, respectively. The evaluations have been repeated with 7 different loading characteristics, in the grid. The results are indicative of the effect of time and location factors on the GR-LOOP frequency of occurrence, even in the case of similarity of the other parameters of the grid. Such a dependence is evocative of potentially induced uncertainty upon employing generic GR-LOOP frequencies in the Probabilistic Safety Assessment (PSA) of NPPs. Regarding the uncertainty of generic databases, in addition to the unique frequencies of GR-LOOP for each NPPs, the hybrid method is capable of providing the extra risk information for decision-making processes (such as importance measures), relying on the benefits of merging PSA and DSA techniques. .
Keywords: Sensitivity Analysis, Load Characteristics, Hybrid Method, Offsite Grid Security Assessment, Transient Stability.
102 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Energy Session: ENR Paper ID: AO-05-176
Maintenance Scheduling of Power Distribution Systems to Improve Reliability and Economic Indices
Hossein Ghasemi*, Maryam Kamrani, Hossein Sabouri
Great Tehran Electrical Distribution Company, Tehran, Iran [email protected]
Abstract Assessing and improving reliability are essential needs in the operation and expansion of power distribution systems. Maintenance strategy is one of the most important decision-making activities in discussing electricity network reliability. One of the most important strategic objectives in electricity companies is to identify important network activities and components with respect to the effectiveness of improving reliability indices. Therefore, in this paper, an attempt is made to introduce the mechanism of optimal maintenance scheduling based on analysis and data mining of network information in distribution companies, and categorize them. Moreover, critical cases are prioritized using the data mining process in the database of the outage management system and the K-Means algorithm. Then, the maintenance activities are determined in a planned manner. This will lead to cost management, improved indices, increased reliability, and customer satisfaction.
Keywords: Asset management, Data mining, Reliability-centered maintenance (RCM).
103 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV3 Paper ID: AO-03-90
Zoning and Deterministic estimation of seismic hazard in Ardabil city by using the fuzzy system
Shahin Khodadadi Jeyd1,*, Saeid Pourzeynali2 1MSc. Student of Structural, Department of Civil Engineering, Rasht, Iran 2Professor of Structural, Department of Civil Engineering, Rasht, Iran *[email protected]
Abstract In the present study, zoning and deterministic estimation of seismic hazard at the seismic bedrock surface has been performed using fuzzy inference system in a radius of 150 km from the center of Ardabil city. The city of Ardabil, with the coordinates of 38.25 North and 48.30 East, is the capital of Ardabil province. Due to its location among several important faults with a background of great historical destruction, seismic recognition and study of this area is necessary. For this purpose, with 18 potential seismic sources prepared in the study area, seismic hazard analysis was performed using fuzzy inference system and peak ground acceleration values for the centers of each mesh with dimensions of 1000 × 1000 meters was estimated and compared with those of hazard analysis with the conventional deterministic method. The variation of peak ground acceleration (PGA) in Ardabil city, obtained using fuzzy inference system, is found to be between 0.25g to 0.43g which is related to the source number 3 with a moment magnitude of 7.21. Keywords: Fuzzy Logic, Deterministic hazard analysis, Seismic zoning, PGA, Ardabil city.
104 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV3 Paper ID: AO-03-203
Safety Assessment of Columns in Reinforced Concrete Moment Frames Using a Probabilistic Approach
Ahmad Reyhani1, Hossein Shahraki 2,* 1M.Sc. of Structural Engineering, Civil Engineering Department, University of Bojnord, Bojnord, Iran 2 Assistant Professor, Civil Engineering Department, University of Bojnord, Bojnord, Iran *[email protected]
Abstract In analysis and design of Reinforced Concrete (RC) short columns, various parameters such as material properties and loads imposed on the structure are uncertain. Thus, it is essential to consider these uncertainties in the safety assessment of RC short columns. In this study, an efficient probabilistic approach is proposed, on the basis of which uncertainties associated with material properties, reinforcement details, modelling error, and gravity and seismic loads are modelled in the safety assessment of RC short columns. In this approach, the probabilistic parameters related to the seismic loads of RC short columns are realistically evaluated based on Nonlinear Dynamic Analysis (NDA) of structures. The Limit State Function (LSF) is formulated with respect to the interaction diagram of axial force-bending moment of the column and the failure probability is estimated using First-Order Reliability Method (FORM). The proposed approach is used to safety assessment of columns in a 4-story RC moment frame. The results demonstrated that the correlation between the axial load and bending moment imposed on the column, load eccentricity, as well as seismic loads significantly affect the safety of RC short columns. Keywords: Safety assessment, FORM, RC short column, Load eccentricity, Seismic loads.
105 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV3 Paper ID: AO-03-169
Evaluating the effects of uncertainty in analytical methods for estimating settlement of single pile
Fateme Jabarouti1,*, Ali Derakhshani2
1Master student of geotechnics, Shahed University, Tehran, Iran 2Assistant Professor, Shahed University, Tehran, Iran *[email protected]
Abstract Design and construction project implementation involve uncertainty, and researchers try to find some methods to measure its effects. In this way, the design becomes more practical and the performance of the structures can be better estimated. One of these methods is the Fuzzy method used to analyze uncertainty in various phenomena nowadays. In designing piles, which are one of the widely used geotechnical structures, bearing capacity and settlement are two key criteria. Piles' settlement can be calculated with several analytical methods, and the most popular relationships for determining single-pile settlement are Vesic (1977), Poulos and Davis (1980), Das (1995), and Randolph (Fleming 2008). In this paper, uncertainty is applied to the input parameters, which are used to estimate the pile settlement, with the help of the Fuzzy method and the pile settlement is estimated by Fuzzified inputs. Finally, the pile settlement resulting from different approaches are compared with each other to determine the vulnerability of each method under the effects of uncertainty. Keywords: Uncertainty, Fuzzy Logic, Settlement, Pile.
106 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV3 Paper ID: MT-16-44
Reliability Analysis of Composite Laminates Containing Central Circular Hole Based on Continuum Damage Mechanics Approach
Peyman Gholami1, Mohammad Ali Kouchakzadeh2,*, Mohammad Ali Farsi3 1, 3 Aerospace Research Institute (Ministry of Science, Research and Technology), Tehran, Iran. 2 Department of Aerospace Engineering, Sharif University of Technology, Tehran, Iran *[email protected]
Abstract The estimation of the probability of failure in composite structures under applied loads is an inevitable requirement, given the uncertainties related to the material properties, loads, and boundary conditions. The properties of composite materials are heavily scattered due to non-homogeneity and anisotropic characteristics and manufacturing defects. This paper investigates the reliability of a rectangular Glass/Epoxy composite laminate containing a central circular hole under static tensile load. According to the continuum damage mechanics (CDM) approach, a damage model is used to model the matrix cracking and fiber/matrix debonding. Then, the material constitutive relationships are implemented in the ABAQUS software by the subroutine. The first- order reliability method (FORM) has been used to analyze the composite plates' failure probability. The failure functions and random variables have been obtained according to the CDM approach. The scatter in random parameters shows a significant influence on the damage development. Studies show that if the scatter in the properties is not considered, there is a possibility of underestimating the development of damage and failure in the structure.
Keywords: Composite, Matrix Cracking, Fiber/Matrix Debonding, Continuum Damage Mechanics (CDM), First Order Reliability Method (FORM).
107 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV3 Paper ID: MT-16-80
Reliability Analysis of Concrete Slab Deflection Using the Direct Design Method
Ali Johari1, Zohreh Delavar2,* 1 Associate Professor, Department of civil and environmental Engineering, Shiraz University of Technology, Shiraz, Iran [email protected] 2 Master's Student, Department of Civil Engineering, Persian Gulf University, Bushehr, Iran [email protected]
Abstract One of the most influential serviceability criteria for reinforced concrete components is deflection control. The purpose of the reinforced concrete slab reliability analysis is to demonstrate how uncertainties related to loading and material properties affect the system performance level. This paper provided a stochastic framework with a random field program coded in MATLAB to evaluate the reliability indices of the deflection of a square slab by the Direct design Method (DDM) with considering the inherent uncertainties of the reinforced concrete slab. In this paper, the Monte Carlo Simulation (MCS) is used to conduct the reliability assessment of the slab's deflection. The safety margin obtained from the design codes was employed to control the results, and accordingly, the failure probability values and reliability index have been calculated for an instance problem. It is ultimately concluded that the roof and floor analyses expected performance reliability levels were classified as Good and Above average, respectively. Keywords: Deflection, Concrete slab, Monte Carlo simulation, Direct design Method.
108 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Civil Engineering Session: CIV3 Paper ID: MT-16-4
Finite-Element Based Reliability Assessment of Pipeline Spanning
Alireza Shadmani1,*, MehdiSaeed Kiasat2 1Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran 2Department of Maritime Engineering Amirkabir University of Technology, Tehran, Iran [email protected]
Abstract Free-span occurs normally at the uneven seabed, dynamic seabed, and pipeline crossing. Free spanning in the pipeline causes Vortex-Induced Vibration (VIV), fracture, and even bursting. Vorticities around the pipe cause oscillation with different frequencies, which could even lead to pipeline fatigue if they reach the natural frequency of the pipe. In this study, a two-dimensional RANS simulation is employed numerically to study flow characteristics around a near-wall pipe, and then stress around the pipeline is calculated using finite element. To investigate structural reliability in terms of probability of failure, multiple linear regression analysis is done to formulate the relationship between inputs and stress. Subsequently, fatigue life capacity of the pipe is determined following DNVGL-RP-C203, and the probability of failure is determined using first order reliability method of limit state function in standard normal space. Finally, alpha-index-based sensitivity analysis is carried out to investigate either the positive or negative impact of each uncertainty parameters on fatigue life capacity. Keywords: Submarine pipeline, Free span, VIV fatigue, Probability of failure.
109 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Structural Reliability Session: CIV3 Paper ID: MT-16-56
Reliability analysis of steel columns under fast dynamic loads
Mohammad Momeni*, Mohammad Ali Hadianfard Department of Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran *[email protected]
Abstract Response analysis of structural systems under the effect of fast dynamic loads such as explosion and vehicle impact, is of great importance in structural design, in addition to gravity, earthquake and wind loads during the useful life of a structure. Local damage of main structural members (e.g. columns) due to fast dynamic loads may cause progressive collapse of the entire structure. In this regard, better understanding the behavior of main structural members under fast dynamic loadings leads to a proper design and reduces possible damage. In this paper, reliability analysis of steel columns subjected to fast dynamic loads with different shapes is evaluated by considering uncertainties associated with loadings and material properties. In doing so, the Monte Carlo simulation method based on the Latin Hypercube sampling approach is used and the results are compared with the conventional Monte Carlo simulation method. To obtain the response of the steel columns, LS-DYNA finite element software based on the beam element formulation is used. Finally, the support rotation criterion is used to assess the effect of uncertainties on the probability of failure. The results show that the uncertainties of random input parameters and the type of fast dynamic loading have significant effects on damage amount of steel columns. Keywords: Impulsive load, Reliability analysis of steel columns, Monte Carlo simulation, Latin Hypercube sampling, Finite element model
110 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC3 Paper ID: AO-09-192
Investigation of Emergency core cooling system in severe accidents in the VVER-1000 reactor containment from core catcher point of view
F. salari1,*, A. Rabiee1, F. Faghihi1,2,3
1 Department of Nuclear Engineering, School of Mechanical Eng. Shiraz University, Shiraz, Iran 2Radiation Research Center, Shiraz University, Shiraz, Iran 3Ionizing and Non-Ionizing Research Center, Shiraz University of Medical Science, Shiraz, Iran *[email protected]
Abstract During a postulated severe accident in nuclear reactors, the core can melt, and the molten corium can fail the reactor pressure vessel. Following the failure of the reactor vessel, the corium can be relocated to the containment cavity. Subsequently, a reaction may occur between the corium and the concrete of the cavity. Therefore, if the molten corium is not cooled, it will cause damage to the containment and radioactive material will leak out. So, in nuclear power plants, the core catcher safety system is used to trap and cool the molten corium in the course of a severe accident. In this paper, a comparative study of three hypothetical severe accident such as: SBO, LBLOCA along SBO and SBLOCA along SBO, from core catcher point of view in VVER-1000/v528 reactor containment using the MELCOR1.8.6 code has been investigated. Also, parametric analysis of this accidents for two states, accident with ECCS, and without ECCS operation has been evaluated. The results of this paper showed that the presence of the core catcher as a safety system in the containment causes the rate of production of hydrogen in the reactor containment to decrease in the three accidents and subsequently reduces the pressure in the containment. It can also be found that the presence of the ECCS system produces more hydrogen than without the ECCS.
Keywords: Core Catcher, VVER-1000/v528, containment, ECCS, MELCOR
111 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC3 Paper ID: AO-09-106
Investigation of critical heat flux of pool boiling on copper surface coated by atmospheric pressure plasma enhanced chemical vapor deposition.
Hamid Reza Mohammadi1,*, Ataollah Rabiee1, Hamed Taghvaei2
1School of Mechanical Engineering, Shiraz University, Shiraz, Iran. 2 Department of Chemical Engineering, Shiraz University, Shiraz, Iran * [email protected]
Abstract Critical heat flux (CHF) is considered as a safety parameter in many types of thermal systems, including nuclear power plants. In recent years, many studies have been conducted by researchers to increase CHF, and these studies show that nano/microstructure coatings created on different surfaces have significantly increased CHF. Nano/microstructures alter various surface properties, including surface wettability. Wettability is a key parameter for increasing CHF. In this study, a hydrophilic SiOx thin film was deposited on the copper surface by atmospheric pressure plasma enhanced chemical vapor deposition. Pool boiling experiments were performed on the hydrophilic coated surface in atmospheric and saturated conditions to investigate the effects of the coating on CHF. Experimental results showed that increasing the surface wettability increases the thermal properties of pool boiling, especially CHF.
Keywords: Non-thermal plasma, chemical vapor deposition, pool boiling, critical heat flux.
112 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC3 Paper ID: AO-09-191
Improving the accuracy of oil-water flow volume fraction measurement: The influence of the quality of preconditioning homogenization used in the stream line on the accuracy of gamma- ray densitometer
Mohsen Sharifzadeh
Nuclear Science and Technology Research Institute, Tehran, Iran [email protected]
Abstract The problem of how to accurately measure multiphase flow in the oil/gas industry remains as an important issue since the early 80 s. Meanwhile, oil-water two-phase flow rate measurement has been regarded as an important issue. Gamma-ray attenuation is one of the most commonly used methods for phase fraction measurement which is entirely dependent on the flow regime variations. The peripheral strategy applied for removing the regime dependency problem, is using a homogenization system as a preconditioning tool, as this research work demonstrates. At this study, two different types of dynamic and static-equivalent preconditioning homogenizers is used beside a gamma-ray densitometer for component fraction measurement tests. The transition from dynamic to static-equvalent mixer with a more capability in preparing a homogenoues mixture showd its effect in increasing the accuracy of various oil-water two-phase volume fraction using gamma-ray denstometry technique.
Keywords: Two-phase flow, accuracy, Preconditioning, gamma-ray technique, dynamic homogenizer, static-equivalent homogenizer.
113 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC3 Paper ID: AO-09-19
Fire simulation in the control room of Bushehr nuclear power plant by CFAST software
Sahar Mojab1,*, Gholamreza Jahanfarnia1, Ehsan Zarifi2, Masoud Mansouri1
1Islamic Azad University Science and Research Branch, Tehran, Iran 2Reactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute, Tehran, Iran *[email protected]
Abstract The main control room (MCR) of a nuclear power plant (NPP) is often identified as a part of the high fire risk in fire risk assessments. Due to the importance of fire in the main control room of Bushehr Nuclear Power Plant-Unit 1 (BNPP-1), in this study, by using the CFAST code which is one of the deterministic safety analysis code, the fire in the main board of BNPP-1 is simulated and the results are evaluated. Required data has been extracted from safety analysis reports, and operating documents of BNPP-1 and NUREG6850 report to simulate fire. The highest recorded temperature was measured in the upper layer of the standing cabinet, about 1013C, which was because of flames and heat transfer through the smoke (convection). Another highest recorded temperature was at the lower wall of the standing cabinet, measured about 700C; this temperature was due to flames of fire and also because of radiation heat transfer. The first ventilation system was blocked in 350 seconds after the start of the fire, and the second ventilation system was blocked in 860 seconds after the start of the fire.
Keywords: Fire, Main control room, BNPP-1, Deterministic Safety Assessment, CFAST code, DSA.
114 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC3 Paper ID: AO-09-201
Assessment of Proposed Sites for the Establishment of Fars Research Reactor
N. Manouchehri Charamakani1,*, M. Nematollahi2, M. Raoufat3
1School of Mechanical Engineering, Shiraz University, Shiraz, Iran 1,2Safety Research Center of Shiraz University, Shiraz, Iran 3 General Department of Natural Resources and Watershed Management of Fars Province, Shiraz, Iran *[email protected]
Abstract The main purpose of the present study is the evaluation of the candidate sites for proposed Fars research reactor. Because the proposed research reactor is being designed conceptually and is very similar to the Tehran Research Reactor, the specifications of the Tehran Research Reactor have been used in this study. In this research with the help of site selection criteria and geographic information system utilities in Arc-Gis 10.4.1 software for three regions of Shiraz, Marvdasht and Sarvestan. The results show that Bajgah site in Shiraz region is the preferred site for Fars research reactor. The process of present research can be used as a methodology for site selection of other similar nuclear facilities.
Keywords: Research reactor, Site selection, Site evaluation process, Radioactive material dispersion.
115 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC3 Paper ID: AO-09-123
Combining model of Nuclear safety Management and international HSE Standards from Design to Decommissioning
Mohamad Reza Tahaeifard, Masoud jabbari*
HSE Manager, Nuclear Safey Manager, Ofogh Cosultand engineering
*[email protected] Abstract The Concept of HSE Management system is widely accepted in Nuclear Industry and other Industry.in this paper. Argue that the attribute of Nuclear safety management safety and HSE Management system ISO standards include ISO 45001:2018 & ISO14001:2015 and the usage of the Structure HSE standards and the content of Nuclear safey management system. The presentation of the combining model of Nuclear safety Management and international HSE Standards. Finding out the Non- conformance and Risk Management of each stage from the design to decommissioning Stage.
Keywords: HSE, Nuclear Safety
116 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability Session: REL1 Paper ID: MT-17-153
Reliable Hardware Architecture for Piccolo Block Cipher
Sanaz Aghabeigi1,*, Saeideh Sheikhpour1, Ali Mahani1 1 Reliable and Smart System (RSS) Research Lab Department of Electrical Engineering Shahid Bahonar University of Kerman, Kerman, Iran *[email protected]
Abstract Lightweight cryptography is an important subfield of cryptography with the aims to provide solutions appropriate for applications with tight constraints such as area and power, e.g. internet of things (IoT), wireless sensor networks and RFID tags. Since an error in the encryption algorithm is rapidly extended and leads to a diverse output, it is critical to present a technique to thwart error effects. In this paper, we introduce an integrated fault-detection architecture for Piccolo block cipher. In this work, the encryption (decryption) process is carried out during the original clock cycle (computation) and the decryption (encryption) process at the redundant clock cycle (re- computation). In case of any error, the re-computation output would be different from the computation input, and fault detection flag will be enabled. The proposed architecture is described using VHDL, simulated using Modelsim, and implemented using Xilinx ISE 14.7 on the FPGA platform. The results of FPGA implementation of the proposed architecture are reported and also compared with those of recent architectures of Piccolo reported before. According to the implementation results, this architecture puts low overheads in terms of throughput, frequency and occupied area to the original architecture compared with other counterparts.
Keywords: Piccolo; Encryption; Decryption; Fault detection; VHDL; Cryptography.
117 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability Session: REL1 Paper ID: MT-17-106
Reliability Assessment of Interconnected Power and Gas Transmission Systems with the Presence of P2G and CHP Technologies
Alireza Tabe Bordbar1, Mohammad Rastegar2,* 1 Master student, School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran 2 Assistant Professor, School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran *[email protected]
Abstract Reliability assessment of integrated power and gas systems has become an important issue due to the high dependency of two energy systems. When a contingent incident occurs in one of the networks, the other network is affected by the dependency between the energy networks. Based on the importance of the subject, in this paper, first a detailed model for the integrated system of electricity and gas is presented, considering the conventional technologies for converting electricity to gas (P2G) and cogeneration of electricity and heat (CHP). Then, contingency analysis due to the connection between two networks of electricity and gas and considering the simultaneous load flow of these two networks is presented. Finally, using Sequential Monte Carlo (SMC) simulation, reliability assessment in this network is computed. The proposed method is implemented on an integrated IEEE 24-bus power system and 20-node gas system, and various studies such as the effect of the presence of P2G equipment, CHP and the connection or disconnection of energy networks on reliability have been performed. The results show the efficiency of the proposed model. Keywords: Reliability assessment, integrated electricity and gas network, P2G equipment, CHP equipment, Sequential Monte Carlo simulations (SMC).
118 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability Session: REL1 Paper ID: MT-17-86
Design information and computational structure for the reliability of reciprocating compressor in Shazand refinery
Mohammadjavad Shamsi1, Mahmoud Shahrokhi2 ,*
1 PhD Student, Department of Industrial Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran 2 Associate Professor, Department of Industrial Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran *[email protected]
Abstract This research presented an information structure and computational model based on the OREDA standard for a reciprocating compressor in unit 33 (Isomerization unit) in Shazand oil refinery. According to the OREDA standard taxonomy, the compressor structure is broken down hierarchically into its subsets in two categories. The types of failure modes are specified for each component, which included 19 different failure modes. The reliability calculation model and its comparison with international standards for each element and the entire compressor is designed based on the component failure records. In this way, it is possible to determine the most important reasons for each part of the compressor's failure and compare it in the form of statistical figures.
Keywords: Reliability, Failure rate, Mean time between failures, Reciprocating compressor, OREDA standard, Excel.
119 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability Session: REL1 Paper ID: MT-17-144
A New Evolutionary Algorithm for Reliability Redundancy Allocation Problem
A. Hesampour1,*, K. Ziarati1, S. Zarezadeh2
1Department of Computer Engineering and Information Technology, Shiraz University, Shiraz, Iran 2Department of Statistics, School of Science, Shiraz University, Shiraz, Iran *[email protected]
Abstract Adding redundant components to the system is a well-known approach for increasing system reliability. The reliability-redundancy allocation problem (RRAP) is an optimization problem with the objective of maximizing system reliability under some constraints. In the most researches on the RRAP, either active redundant components or cold standby components are used in a subsystem whereas a mixed redundancy strategy (where both types of redundancy are used) will have better results. This formulation leads to get more precise solution for the problem. After formulating our problem, we propose an evolutionary strategy optimization algorithm for solving it. We propose a new formulation of RRAP with mixed active and cold components in each subsystem. The new formulation of the problem and the new method for solving yields better results than the outer state of the art researches.
Keywords: Reliability; active components; cold standby components; evolutionary strategy; heterogeneous components.
120 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability Session: REL1 Paper ID: MT-08-147
Optimum preventive maintenance policy of systems with lifetimes dependent on a random shock process subject to random working times
Maryam Kelkinnama Department of Mathematical Sciences. Isfahan University of Technology. Isfahan 84156-83111. Iran m.kelkinnama@ iut.ac.ir
Abstract This paper considers preventive maintenance (modified age replacement) of systems operating in a random environment modeled by a Poisson process of shocks. The operating system works for jobs at random times. A system is replaced either on its failure, on the predetermined replacement time, or at a random working time, whichever comes first. The optimal policy is obtained based on minimizing the mean cost rate of the system. Keywords: Preventive maintenance, age replacement, random working time, shock process.
121 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE1 Paper ID: MT-06-95
Assessment of Knowledge Level for Crisis Management Team Members in a Petrochemical Industry
Hemn zarei1, Payam haydari2, Omid kalatpour3,* 1 MSc Student, Department of Occupational Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran 2 Department of Ergonomics, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran 3 Center of Excellence for Occupational Health, Occupational Health and Safety Research Center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran * [email protected]
Abstract The purpose of this study was to evaluate the validity and reliability of the Critical Management Team members' knowledge assessment questionnaire and their knowledge level. A questionnaire was designed using scientific sources. Experts evaluated the validity of the questionnaire and the reliability of the questionnaire was tested by test- retest method by crisis management. The questionnaire was then completed by all members of a crisis management team in one of the petrochemicals in Iran. The results of correlation between test questions showed that Cronbach's alpha was 0.708 and the stability and reliability of test scores over time showed that the correlation between the questions in the second series was significant at significant level. It is acceptable. The best cut-off value with 90% sensitivity and 66% specificity was obtained 12.05. According to the results of the Rock Curve, 23.1% of crisis management team members had low level of knowledge and 76.9% had good level of knowledge. The least knowledgeable members of the management team were related to the content of the corporate crisis management system documentation and the highest level of awareness to the company's communication systems. The knowledge assessment questionnaire of the crisis management team members is valid and reliable.
Keywords: Emergencies, Crisis Management Team, Qualification, Petrochemical.
122 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE1 Paper ID: MT-06-15
Modeling of accident occurrence in LP Gas storage tank using SHIPP Methodology
Kazem Sarvestani, Omran Ahmadi*
Department of Occupational Health and Safety Engineering, Tarbiat Modares University, Tehran, Iran [email protected] *[email protected]
Abstract In this study, occurrence of accidents in LPG storage tanks is modeled using SHIPP methodology. A comprehensive risk assessment was performed using the Bow-tie method. Barriers on the diagrams were identified and classified into seven groups according to the SHIPP model. prior failure probability of barrier with the fault tree and the prior occurrence probability of consequences with the event tree calculated. To update the prior probabilities and reduce the data uncertainty, precursor data have been used and posterior occurrence probability of consequences has been calculated using posterior failure probability of barrier. The most important barrier to prevent accidents is the first barrier, that is, the prevention of leakage. Human and organizational factors are influential in the whole process of the accident. The posterior failure probability of release prevention barrier is significantly different from failure probability of other barriers. This means that events with lower levels of intensity are more likely to occur. Posterior occurrence probability of consequence with a lower intensity level are more likely than the other consequences. Review of posterior probability indicates the model is constantly learning from the output of the system and updates the probabilities according to the behavior of the system.
Keywords: Accident Modeling, LP Gas, Safety Barriers, Fault Tree, Event Tree, SHIPP.
123 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE1 Paper ID: MT-06-126
Consequence Analysis and Modeling of Ammonia Storage Tank Accidents in Behnoush Iran Company Using PHAST Software
Tayebeh Khosravi1,*, Nioosha Abasian chouri2, Zahra Sojoudi3 1 Assistant Professor, Department of Safety Engineering, Faculty of Engineering, University of Science and Culture, Tehran, P.O. Box 871-13145 2 Graduated in Safety Engineering, Faculty of Engineering, University of Science and Culture, Tehran, P.O. Box 871-13145 3 Postgraduate Student in HSE Engineering, Faculty of Engineering, University of Science and Culture, Tehran, P.O. Box 871-13145 * [email protected]
Abstract Consequence analysis is a valid and well-known method for simulating accidents and analyzing its harmful effects, which nowadays is used in the process industries. Awareness of the radius of the explosion and the fire and the resulting damage can play an important role in preventive measures. The aim of this study was to analyze and model the consequences of ammonia storage tank leakage of Behnoush Iran Company using PHAST software. The present work involves three scenarios: leakage scenario with 25 mm diameter and 100 mm diameter of ammonia reservoir in summer and winter cases and its consequences, and scenario of complete rupture of ammonia tank in winter and its consequences. The results showed that the greater the diameter of the leak, leads to the higher explosion wave and radiation, resulting in more serious damages. The effects of these events are exacerbated by more stable weather conditions and by rising temperature. In the case of catastrophic rupture of the ammonia tank followed by an explosion, people in the area with radius of 29.8 meter are killed and equipment is seriously damaged. Keywords: Consequences Analysis, Safety, Ammonia Storage Tank, Explosion, Fire, PHAST.
124 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE1 Paper ID: MT-06-76
Assessing the reliability of firefighting systems (Fs) using fuzzy Bayesian network (FBN) in the floating roof tanks of a petrochemical company
Fereydoon Laal1, Mostafa Pouyakian1,*, Mohammad Javad Jafari2, Farshad Nourai3, Ali Akbar Hosseini4, Alireza khanteymoori5 1 Department of Occupational Health and Safety Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2 Safety Promotion and Injury Prevention Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran 3 proNEXO Engineering Consultancy, Tehran, Iran 4 HSE Department, National Iranian Petrochemical Company, Bushehr, Iran 5 Bioinformatics Group, Department of Computer Science, Albert-Ludwigs-Universität Freiburg, Germany * [email protected]
Abstract This study aims to provide a risk assessment method based on fuzzy Bayesian network (FBN) to prevent the failure of firefighting systems (FFS). Therefore, the hidden factors of the accident, including managerial and organizational factors, in addition to human and process factors were analyzed, after validating the structure of the fault tree (FT). Triangular fuzzy numbers (TFNs) and the combined CoA/Sum Product method were used to calculate the failure rate (FP). Then, deductive and inductive reasoning and sensitivity analysis were performed using fuzzy logic and FT transmission in Bayesian network (BN). The results of a case study on methanol floating roof storage tanks of a petrochemical industry showed that FBN simulation and FT validation provide a practical method for accurate FFS identification. The CVI of the final basic events was over 0.79. The highest and lowest FPs were related to foam system failure and valve failure, respectively. Also, the FP for FFS was 5.7E- 6 based on fuzzy fault tree (FFT). After updating with BN, the previous probability of FFS with FBN was calculated to be 0.022978, which was greater than the value of FFT. Therefore, the present approach can help the decisions of managers and analysts of the petrochemical industry to prevent FFS in tanks due to changes in systems. Keywords: Foam system, deluge system, validation, uncertainty, fuzzy Bayesian network.
125 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE1 Paper ID: MT-17-136
Assessing the Reliability of Traditional and Fuzzy FMEA Methods Based On a LOPA-Based Approach in a Petrochemical Industry
Seyedeh Arezoo Baghaei Naeini1, Ehsanollah Habibi1,*, Ismail Shokrolahi1
1Department of Occupational Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan, Iran *[email protected]
Abstract The purpose of this study is to investigate the reliability of FMEA risk assessment method in both traditional and fuzzy modes and based on LOPA risk assessment method in one of the petrochemical industries. In this study, 10 hazards from a petrochemical company were selected using the HAZOP method. Then the hazards were evaluated and prioritized by traditional FMEA, fuzzy AHP and traditional LOPA methods. Finally, the results obtained from the analysis of events by FMEA method in both traditional and fuzzy modes were compared with the results of traditional LOPA method. The results showed that the P-value between traditional LOPA and fuzzy FMEA and traditional FMEA and fuzzy FMEA was obtained 0.012 and 0.022, respectively, and indicates a significant relationship between the above modes. The results also showed a high correlation coefficient between traditional FMEA and fuzzy FMEA modes and traditional LOPA and fuzzy FMEA modes. Fuzzy has been effective in improving risk prioritization. In other words, fuzzy FMEA provides more precise prioritization and brings the results closer to the traditional LOPA mode.
Keywords: Petrochemical, Reliability, AHP Fuzzy, LOPA, FMEA.
126 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE1 Paper ID: MT-08-36
Selection of Critical Equipment Using Multiple Attribute Utility Theory Approach (MAUT) and Identifying It's Failure Mode and Effects (Case Study: lmv-311 pump)
Ommolbanin Yousefi*1, Sepideh Molla Mohammad Navesi2, Mohammad Javad Omidi3
1Associate, Faculty of Indusrial Engineering, Malek Ashtar University Of Technology, Shahin Shahr 2Student Master of Science, Faculty of Indusrial Engineering, Malek Ashtar University Of Technology, Shahin Shahr 3Student Master of Science, Faculty of Indusrial Engineering, Malek Ashtar University Of Technology, Shahin Shahr * [email protected]
Abstract Failure mode and effects analysis (FMEA) is a qualitative method for identifying failures of equipment components, parts and production machinery that examines their effects in a system. The present paper seeks to selection of critical equipment using the multi-criteria decision making method (MCDM) and the multi-attribute utility theory (MAUT) and then analyzes it's failure mode and effects. In this paper, according to the key performance indicators of maintenance standard EN 15341 and ISO 14224, the appropriate key performance indicators are determined to check the equipment and then are calculated and measured. By prioritizing the equipment using the multi-attribute utility theory method, the utility of each of the options is calculated and the equipment is ranked. Then, by drawing functional block diagram (FBD), the sequence of equipment function relationships is shown and using FMEA analysis, failure modes are identified at two levels and it's effects and consequences are separated for each functional failure.
Keywords: Failure mode and effects analysis, Key performance indicators of maintenance, Multi-criteria decision making, Multi-attribute utility theory, functional block diagram.
127 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Aeronautics Session: AERO1 Paper ID: AO-01-112
Reliability Based-Design Optimization for Thrust Chamber by FORM method
H. R. Alimohammad1,*, A. R. Norolahi2 1Aerospace Research Institute, Ministry of Science, Research and Technology, Tehran, Iran 2Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran *[email protected]
Abstract One of the challenges of Liquid-Propellant Engine (LPE) desinging is to predict the performance, weight, cost, and reliability of the thrust chamber. Therefore, the integration of reliability and optimization concepts while designing the thrust chamber is always of great importance. This integration is called Reliability-Based Design Optimization (RBDO). This paper presents attempts to RBDO of the thrust chamber by First Order Reliability Method (FORM). Based on this methodology, the input variables, constraints, objective function, and their surfaces were identified. Uncertainties in the thrust chamber, such as chamber pressure and consumption ratio, are taken into account as random variables in the reliability-based optimization. Due to the high importance of specific impulse and thrust-to- weight ratio, these two functions were selected as objective functions.
Keywords: Thrust chamber; First Order Reliability Method (FORM), Reliability- Based Design Optimization (RBDO).
128 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Aeronautics Session: AERO1 Paper ID: AO-01-204
Comparison of different configurations of modular cubic satellites based on the reliability of the power generation section
Omid Shekoofa*, Farhad Bagheroskouei, Nafiseh Namazypour, Farzaneh Hadadi Satellite Research Institute, Iranian, Space Research Center, Tehran, Iran *[email protected]
Abstract Supplying the required power has always been a major challenge in microsatellites design, especially in CubeSats. With the development of applications and the variety of more-power-consuming payloads, this challenge becomes even more difficult day by day. A common approach for generating more power is to build bigger CubeSats, composed of more cubic units. To evaluate the effect of this approach on the reliability factor, this paper investigates the reliability of the power generation section in different CubeSats. To this end, the solar arrays and primary power regulators of different CubeSats configurations, from 1U to 24U are considered. The reliability of various solar array configurations, including solar arrays on lateral sides, on all sides, and combined with deployable solar arrays have been studied. In addition, the impact of different topologies of connecting series power regulators on the reliability of the power generation section are studied and compared.
Keywords: Cubesat, Electric Power Subsystem, Reliability, Solar Array, Series Regulator.
129 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Aeronautics Session: AERO1 Paper ID: MT-10-159
Stress Analysis and Reliability Assessment of the Passenger Aircraft Nose Landing Gear Wheel Axle
Hadis Montazer1,*, Mohsen Rezaeian Akbarzadeh2
1 Master of risk and reliability of mechanical systems, Department of Mechanical engineering, Amirkabir university, Tehran, Iran 2 Professor of Mechanical Engineering Department, Amir Kabir University, Tehran, Iran *[email protected]
Abstract One of the most important and at the same time the most complex mechanical parts of the aircraft is its landing gear, so as if it does not absorb too much energy due to vertical and horizontal forces under different landing and takeoff conditions, irreparable damages and/or catastrophic failures will be unavoidable. According to the Federal Aviation Administration, 55% of aircraft failures occur during landing and takeoff, and since landing and takeoff operations are repeated during aircraft life, it can be argued that aircraft landing gear are subject to cyclic loads, and since landing and flight operations are repeated over a period of inspection routine, landing gear is exposed to cyclic loads that cause fatigue failure of their components without obvious or precaution signs, leading to errors in predicting their life. In this research, at the first step, some finite element (numerical) analysis were performed under static to determine the critical part of the carriage and detect the position and magnitude of the stress applied to it in ANSYS WORK BENCH environment and because such a stress is repeated, the structural reliability has been evaluated using the fatigue analysis approaches and interference theory method by considering the variability of the parameters in the tolerance range of the vulnerable member (axle of the nose landing gear wheel) in achieving different lives for some overhaul inspection periods. Because of unavailability of some of reference data, some of the coefficient of variations are assumed based on similar cases. Keywords: Reliability, Probabilistic Design, Fatigue, Landing gear, airplane.
130 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Aeronautics Session: AERO1 Paper ID: MT-09-62
Reliability prediction for short-range projectiles upgraded to inertial guidance and navigation system with MIL-HDBK-217 & 338 standards
Javad Karimi*, Saeed Mohammad Hosseini Malek Ashtar University of Technology, Esfahan, Iran * [email protected]
Abstract Predicting reliability for electronic systems used in projectiles in the design phase is the subject of this paper. It can be argued that methods based on experimental information obtained from previous examples are the most common and available Predictive methods. One of the most popular reference used in estimating the reliability of electronic and military systems in the world is MIL-HDBK-217 & 338. The MIL-HDBK-217F offers two general inductive methods for predicting reliability: the parts count method and the parts stress method. These methods vary in the amount of information required to use them. The parts stress method requires more detailed information and is applicable during the later stages of design, that is, when the circuit and hardware components are designed. The parts counting method requires less information and generally smaller quantities, a lower level of quality and a software environment. This method can be applied in the early stages of design as well as during the proposal stage, by which this essay explain how to estimate the reliability of short-rang projectiles upgraded to inertial guidance and navigation system. Keywords: Reliability prediction, MIL-HADBK-217, MIL-HDBK-338.
131 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC4 Paper ID: AO-09-38
Investigation of increasing safety and reliability of small modular reactors using dual-cooled annular fuel element
Hossein Zayermohammadi Rishehri, Majid Zaidabadi nejad*
Department of Nuclear Engineering, Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Haftbagh St, Postal Code: 7631818356, Kerman-Iran *[email protected]
Abstract The use of dual-cooled annular fuel is one of the proposed methods to increase the safety of nuclear reactors. This type of fuel allows the cooling fluid to pass through the internal channel and as a result more heat is removed from the fuel surface. For this purpose, in this study, a dual-cooled annular fuel assembly with 11×11 array in a small modular reactor has been investigated by neutronic and thermal-hydraulic simulations. In the results of neutronic calculations of designed dual-cooled annular fuel assembly and compared with the reference reactor, it is concluded that they have similar neutronic properties. But in the thermohydraulic results, a significant effect of the use of dual- cooled annular fuel was extracted. The use of this type of fuel reduced the maximum fuel temperature, reduced the pressure drop and increased minimum departure from nucleate boiling ratio.
Keywords: dual-cooled annular fuel, Small modular reactor, Power Peaking Factor.
132 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC4 Paper ID: AO-09-18
Design, Simulation and Evaluation of Pressure Control System in a High-pressure Research Test loop
Abolfazl Shoghi, Amir Saeed Shirani, Seyed Ali Hosseini*, Mahdi Zangian
Faculty of Nuclear Engineering, Shahid Beheshti University, Tehran, Iran *[email protected] Abstract Design and simulation of research test facilities have great importance among countries nuclear technology. The operation of the pressure control system plays an essential role in the safe operation of these research test loops. In this paper, high-pressure and high- temperature circuit are designed and simulated using Aspen HYSYS engineering software. A pressure control system is connected to the primary circuit to control the simulated circuit pressure. This system keeps the circuit pressure constant at a certain level (reference limit) by injecting and removing nitrogen in the upper head of the pressurizer. The simulation includes a PID control system designed within the Simulink MATLAB, in coupling with Aspen HYSYS engineering software. To ensure the correct operation of the pressure control system in transients, various scenarios have been performed to evaluate the pressure control system.
Keywords: High-Pressure Test Facilities, PID Controller, Pressurizer, Coupling of Aspen HYSYS with MATLAB Simulink.
133 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC4 Paper ID: MT-02-143
Thermo-Hydraulic Analysis of Passive Heat Removal System (PHRS) in VVER-1000 Nuclear Reactor Using RELAP5 Code
A. Shahabinejad*, A. Pirouzmand, A. Rabiee Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University,Shiraz, Iran * [email protected]
Abstract The design and use of passive safety systems as one of the effective ways to increase reliability and safety level of nuclear power plants in new generation reactors has received much attention. In this paper, using RELAP5 computational code, the thermo-hydraulic analysis of the Passive Heat Removal System (PHRS) in the VVER-1000 reactor is investigated to ensure the capability of its performance under various conditions. For this purpose, the system nodalization is first extracted according to the available documentation and then the RELAP5 code input is developed. The results show that for 6.27 MPa pressure in steam generators and air temperature of 36 ° C, the system is able to remove 95.52 MW heat. Keywords: Passive Heat Removal System (PHRS), RELAP5 code, VVER-1000 reactor.
134 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC4 Paper ID: AO-09-156
Design and Fabrication of Calibration Reference Phantom for Industrial Computed Tomography System (CT-Scan)
Mohammad Hasan Mahdian Manesh1,*, Amir Movafeghi2, Esmaeil Bayat3, Reza Faghihi4
1 Phd Student of the Dept. of Nuclear Engineering, Shiraz University, Shiraz, Iran 2 Associate Prof. of the Dept. of Institute of Nuclear Science and Technology, Tehran, Iran 3 Associate Prof. of the Dept. of Institute of Nuclear Science and Technology, Tehran, Iran 4 Prof. of the Dept. of Nuclear Engineering, Shiraz University, Shiraz, Iran *[email protected]
Abstract Recent advances have shown that CT-Scan can be a viable alternative to coordinate measurement systems and dimensional metrology, but CT scan is influenced by the weaknesses described below. CT accuracy in measuring internal defects is being investigated and a metrological validation method is required. On the other hand, due to difficulties in assessing measurement uncertainty (measurements affected by various and complex error sources), CT measurements still lack traceability. Checking the reproducibility of the results is also one of the important issues. The purpose of this work is to comprehensively respond to these problems and standardize this metrological method and evaluate accuracy. In this work, a reference phantom with unique features is designed and built, which allows the calibration of the scale factor, the gray scale threshold factor, as well as measuring the resolution of the imaging system simultaneously. After calibrating the mentioned cases, we use these values to evaluate the internal defects of an aluminum or polyethylene industrial piece, and results with high reliability, accuracy and uncertainty are obtained. By combining polyethylene and aluminum phantom parts, the above process can be repeated for parts made of two materials and appropriate calibration values can be obtained.
Keywords: Calibration Phantom, Uncertainty, Non-Destructive Testing, Safety, CT- Scan.
135 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Nuclear Industry Session: NUC4 Paper ID: AO-09-179
Molecular dynamics simulation of neutron irradiation damage in Aluminum alloy used in Isfahan Research Reactor vessel
K. Hadad1,*, A. Rabiee1, M. Kanaani2 and M. Shahrnazkian1
1Dept. of Nuclear Engineering, Shiraz University, Shiraz Iran 2Dept. of Material science Engineering, Shira University, Shiraz Iran *[email protected]
Abstract The collision of high energy particles (e.g. neutrons, α, β and γ) with matter, causes damage and defects to the crystal lattice. With the increase of defects and changes in the fixed crystal lattice, changes in microscopic properties and consequently macroscopic properties (physical and mechanical properties) occur; which mainly causes the material to break down and corrode under the influence of radiation. In this research, using molecular dynamics method and software related to neutron radiation simulation, the effects of neutron collision on the wall of Isfahan miniature reactor is investigated. For this purpose, composition of the reactor wall material is determined and the most probable kinetic energies of the colliding neutrons was obtained through neutronic simulations to be 224, 587 and 771 KeVs. LAMMPS molecular dynamic simulator is used to evaluate the amount of energy stored in the crystal lattice, displacement and defects as the results of colliding neutrons. The results show that in neutron collisions with Aluminum, the higher the energy, the higher the deposited energy and defects in crystal lattice would be. Collision of neutrons with sediment (Mg and Si), affects both sediment components and crystal lattice together. The simulation results also indicate that in neutron collision with alloy compositions, the base metal receives the highest energy and the sediment prevents displacement of energy until the equilibrium of the crystal lattice is reached. As a result, it causes accumulation of defects behind the sediment, constant increase of crystal lattice deformation and consequently swelling in the alloy. The results also show increasing sediment density, brings about an increase in accumulated defects and finally the destruction of the alloy structure and the reactor wall.
Keywords: Degradation, neutron radiation, Molecular dynamic simulation, aluminum with sediment, Lammps.
136 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability, Human Factors Session: REL2 Paper ID: MT-17-118
Reliability Assessment of Phased Mission Systems with Ternary and Non-identical Components
A H. R. Bidarmaghz*, S. Zarezadeh
Department of Statistics, School of Science, Shiraz University, Shiraz 71454, Iran *[email protected]
Abstract In this paper, we consider phased mission systems (PMS) with independent and no- identiacal ternary components. The reliability function of such systems is achieved at any time based on the new version of the notion of survival signature which only depends on the structure of the system and is free of the random mechanism of the components failure. Some examples are given to illustrate the proposed model. Keywords: Reliability, Survival Signature, Phased Mission System, meta-type Component.
137 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability, Human Factors Session: REL2 Paper ID: MT-17-5
Reliability Calculation and Lifetime Prediction of Lead-Acid Battery Based on Weibull Model
Mahdi Karbasian*, Parastoo Divsalar Departmant of Industrial Engineering, Shahinshahr, Isfahan *[email protected]
Abstract Sealed lead-acid batteries are types of lead-acid batteries that are used in the various field considering engineering structure, low price and high production. Reliability and safety evaluation play an important role in general behavior evaluation of lead-acid batteries in various phase of life cycle. In this research, data of batteries life fit with Weibull and Log logistic distribution using Minitab and the level of conformity with the two distribution are investigated. Then Anderson-Darling test are used for choosing the best distribution. In the following, distribution parameters are calculated using Maximum Likelihood Estimation (MLE) method. Next The guarantee is calculated in proportion to the specified returned rate, and finally, reliability improvement of battery system is done by using minimum effort method. The goals of this research are lead- acid batteries life time analysis due to batteries life time prediction, guarantee calculation in ideal operational temperature condition and improving of the reliability.
Keywords: Reliability, Weibull Distribution, Life Cycle, Guarantee, lead-acid batteries.
138 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability, Human Factors Session: REL2 Paper ID: MT-07-115
Excessive Daytime Sleepiness and Safety Performance: Comparing Proactive and Reactive Approaches
Mehdi Jahangiri1, Hamidreza Mokarami2, Rosanna Cousins3, Vahid Gharibi1,4,* 1 Department of Ergonomics, School of Public Health, Shiraz University of Medical Sciences, Shiraz, Iran. 2 Department of Ergonomics, School of Public Health, Shiraz University of Medical Sciences, Shiraz, Iran. 3 Department of Psychology, Liverpool Hope University, Liverpool, UK. 4 Department of Occupational Health, School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran. * [email protected] Abstract Sleep disorders and excessive daytime sleepiness have potential for a negative impact upon employees’ safety performance. This study investigated the relationship of excessive daytime sleepiness and obstructive sleep apnea on safety performance at an oil construction company in Iran. 661 employees consented. Excessive daytime sleepiness was measured using the STOP-BANG questionnaire, which screens for obstructive sleep apnea, and the Epworth Sleepiness Scale (ESS). To determine how sleepiness affects Occupational Incidents (accidents causing injury and near misses) both reactive data and proactive safety performance indices were measured. Demographic and predictor variables were analyzed using hierarchical multiple linear regression. Employees who met the criteria of excessive daytime sleepiness and obstructive sleep apnea had significantly poorer safety performance indicators. STOP- BANG and ESS were significant predictive factors for safety compliance (β = 0.228 and 0.370, respectively), safety participation (β = 0.210 and 0.144, respectively), and overall safety behavior (β = 0.332 and 0.213) respectively. Further, Occupational Incidents were 2.5 times higher in workers with indicators of excessive daytime sleepiness and 2 times higher in workers with obstructive sleep apnea than those without. These findings confirmed excessive daytime sleepiness as a serious safety hazard, and both reactive and proactive measures are important to understand the relative contribution of predictor variables. To reduce occupational incidents, it is essential that management procedures support good sleep hygiene with the aim of improving safety performance.
Keywords: Safety Behavior; Sleepiness; Obstructive Sleep Apnea; Occupational Accidents; Occupational Health.
139 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability, Human Factors Session: REL2 Paper ID: MT-07-162
Investigating interactions among cognitive factors affecting unsafe behavior contributing to “white swan events” based on an integrative Fuzzy DEMATEL ISM approach
Mahnaz Shakerian1, Alireza Choobineh2,*, Mehdi Jahangiri3, Jafar Hasanzadeh4, Moslem Alimohammadlou5 1 Department of Occupational Health Engineering, School of health, Isfahan University of medical sciences, Isfahan, Iran. 2 Research Centre for Health Sciences, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran 3 Institute of Health, Department of Occupational Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran 4 Institute of Health, Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran 5 Department of Management, Faculty of Economic, Management and Social Science, Shiraz University, Shiraz, Iran * [email protected]
Abstract The prevention of process industrial accidents is not feasible by conducting safety programs unless focusing on protecting vulnerable workers. The cognitive factors (CFs) affecting unsafe behaviors are essential determinants contributing to human failure. This study aimed at identifying the most important CFs along with investigating hierarchical cause-effect interactions among them. A qualitative method was applied to extract the critical CFs among process industries. Then, the relationships between CFs were recognized using the fuzzy decision-making trial and evaluation laboratory (DEMATEL) method and rated by an expert panel. Also, a hierarchical model was constructed based on the final matrix of DEMATEL by employing the interpretive structural modeling (ISM) method. Ten criteria were extracted as CFs through the meta-synthesis method. The threshold value was set as 0.175 in DEMATEL following experts' ideas. The results of the study can be used to help process industrial managers to regard workers’ capabilities cognitively when designing the required tasks to reduce unsafe behaviors. Also, the findings of the study may be applicable for future studies to model the influential power of factors affecting unsafe behavior in process workplaces. Keywords: Cognitive ergonomics, Unsafe behavior, Process industries, Fuzzy DEMATEL, ISM.
140 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability, Human Factors Session: REL2 Paper ID: OT-00-205
The Application of Analytical Hierarchy Process Approach for Risk Safety Assessment of Human Factors in Open Pit Mines
Seyed Amin Moosavi1,*, Shahabeddin Kamyab2 1Assistant Professor, Mining Engineering Department, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran 2Ph.D. Candidate, School of Mechanical Engineering, Shiraz University, Shiraz, Iran. *[email protected]
Abstract From the past until now, regardless of the type of extracted mineral, safety has always been one of the fundamental issues in the mining industry. Due to the importance of the issue, different methods have been developed for risk assessment in industries, including the mining industry. Regardless of whether any of these methods and techniques are usual or not in the mining industry, the selection of the appropriate risk assessment method depends on many factors such as the type of hazards, the availability of data, resources and appropriate expertise, as well. Despite the importance of the risk assessment, in many Iranian mines, some of which include large mines, there is a lack of appropriate and scientific approach to the issue. Accordingly, in the present paper, we have tried to examine the application of analytical hierarchy process as a quantitative method for risk assessment with a special focus on the mining industry, especially in open pit mines. Therefore, the analysis is performed by collecting experts grading to determine the weights of important accident-causing factors at various levels of a working system in open pit mines. Keywords: Safety, Risk Assessment, Human Factors, Analytical Hierarchy Process, Open Pit Mines.
141 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: System Reliability, Human Factors Session: REL2 Paper ID: MT-09-20
Evaluation of reliability of pressure reduction stations using block method: A case study of Golestan Gas Company
Mohammad Reza Borna PhD of Civil engineering, gas industry of Golestan province, Iran [email protected]
Abstract Reliability indicates the continuity of operation without the occurrence of failure, and therefore reliability is the probability of the system or a part remaining in the operating conditions without the occurrence of failure. It should be noted that this type of reliability is inappropriate for systems with continuous performance, because failure in these systems is acceptable. As such, another concept and scale called accessibility is appropriate, and that is the possibility of finding the system in the conditions necessary for future performance. Pressure reducing stations are among the most important and sensitive facilities in the provincial gas companies, the breakdown of which creates many problems for both the company and consumers, and therefore the reliability of these stations is of an utmost importance. To obtain reliability, one can use the equipment failure rate, so that by calculating the number of failures of each equipment, its failure rate can be obtained through mathematical relations and by calculating the average repair time of each equipment and drawing a block diagram, the station reliability can be calculated. Keywords: Reliability, City gas stations, Block method, Failure rate.
142 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE2 Paper ID: MT-06-134
PSM gap analysis in Parsian gas refinery based on the OSHA regulation
R. Eslamloueyan1,*, N. Mehranbod2, M.Sarshar3, H Esmaeili4, A.A. Azooji4, S. Roozmand4, Sh. Payandeh4
1 Chemical engineering department, school of chem. & petrol. eng., Shiraz University, Shiraz, Iran Managemnet borad of GEST co (knowledge based) 2 Gas engineering department, school of chem. & petrol. eng., Shiraz University, Shiraz, Iran Managemnet borad of GEST co (knowledge based) 3 Mechanical research institute, Iranian space research center, Shiraz, Iran Managemnet borad of GEST co (knowledge based) 4 Parsian gas refinery co. * [email protected]
Abstract This research studies the situation of process safety management (PSM) in Parsian gas refinery. For this purpose, three PSM method were investigated (OSHA, CCPS and RBPS), and OSHA method with 14 elements was selected. Then based on the OSHA regulation, needed questions were developed for each element, and interview with refinery managers and engineers was conducted in order to determine a quantitative grade for each element. In this way, the grade of each element is placed in the range of 0 to 4, and a grade less than 3 indicate an undesirable condition for the element. According to the results, the company has an appropriate situation for 6 elements (2, 6., 8, 9, 11, 12, 14), and for elements 3 and 4, the situation is very close to desirable condition. For elements 1, 5,7,10, the company can reach to desirable grades by making improvement in administrative procedures. After implementing all elements appropriately, the audit element (13) should be accomplished. In general, the overall grade of the company for PSM based on the OSHA regulation is 2.74 which is close to 3, and by removing the shortcomings in the company’s procedures, the OSHA PSM certificate could be received. Keywords: Process safety management, OSHA standard, PSM.
143 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE2 Paper ID: MT-15-124
Reliability Estimates of Fire Alarm Systems Using Dynamic Bayesian Networks and Fuzzy Set Theory
Mohammad Javad Jafari1, Mostafa Pouyakian1, Alireza khanteymoori 2, Saber Moradi Hanifi1,* 1Department of Occupational Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2Bioinformatics Group, Department of Computer Science, University of Freiburg, Germany *[email protected]
Abstract In almost all industries, fire alarm systems play a vital role in the reducing the risks associated with fires. Therefore, it is necessary to evaluate their reliability in emergency situations. The present study aimed to use fault tree analysis to determine the root causes involved in the failure of fire alarm systems, to use Fuzzy set theory and expert elicitation to determine relative probabilities, and finally, to evaluate the reliability of a fire alarm system using dynamic Bayesian networks during a thirty- six months period. A total of 29 basic events were detected from the FT. The reliability of the fire alarm system was estimated at 0.954 according to the FT and 0.957 according to conventional BNs. The reliability of the fire alarm system after 36 months was estimated at 0.375 according to dynamic BNs. All the events involved in the failure of fire alarm systems were drawn in the fault tree diagram. The results indicate that remodeling of these systems and simultaneous construction activities are the most important factors in the failure of the fire alarm system. System reliability can also be increased to 0.965 by providing preventive and control measures to reduce the probability of critical events. Keywords: Reliability, Dynamic Bayesian Networks, Fire Alarm Systems, Fuzzy Set Theory.
144 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE2 Paper ID: MT-15-145
3D Simulation of Temperature Distribution and Smoke Diffusion in a Residential Building Fire Using Pyrosim Software
Ali Pasban1, Mahdi Saghafi2,*
1Graduate of Mechanical Engineering, Faculty of Engineering, University of Bonab, Bonab, Iran 2 Assistant Professor, Department of Mechanical Engineering, Faculty of Engineering, University of Bonab, Bonab,Iran *[email protected]
Abstract In this paper, fire and smoke development as well as the effect of automatic water sprinklers are modeled and investigated. Due to the importance of the smoke management in different spaces of a building, a case study of two-storey house is selected in this research. The simulation was performed using PyroSim software, which was built as a graphical user interface for the Fire Dynamics Simulator (FDS) code. First, the materials of the indoor components are specified, and then defined in PyroSim software for modeling. The fire was modeled in dimensions of 100cm*100cm in the first floor. The simulation results consisting of temperature distributions, visual parameter, amount of released heat, and how smoke and fire spread over time are presented. Keywords: 3D simulation, fire, temperature distribution, smoke diffusion, Pyrosim
145 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE2 Paper ID: MT-04-148
Identification and prioritization of surgical Failure risks in medical centers using FMEA and TOPSIS methods (with a case study)
Esmaeil Alinezhad1,*, Fateme Sadeghi2 1 Faculty Member, Department of Industrial Engineering, Shiraz University of Technology, Shiraz, Iran 2 B.Sc. Student, Department of Industrial Engineering, Shiraz University of Technology, Shiraz, Iran * [email protected]
Abstract Inadequate level of safety conditions in patient care have led to an increase in the public complaints of medical errors. On the other hand, with increasing competition among medical centers (especially among private centers) to attract more patients, the need to investigate and reduce errors, especially in the departments that deal with patients' lives, is strongly felt. Therefore, in this study, using the FMEA method (which is one of the most efficient and popular methods for risk management and assessment of the errors), the most important factors affecting failures in a surgical medical center are identified and prioritized. Furthermore, due to the great importance of errors with high "effect intensity" in the OHSAS standard and the inability of the FMEA method to take them into account, a multi-criteria decision approach (TOPSIS) is utilized to adapt the prioritization’s results to the standard. The findings of this study demonstrate that the two errors of "not receiving a complete patient's description by the doctor" and "incorrect registration of medication instructions in the patient file" are at the top of the most important errors based on FMEA and TOPSIS methods, respectively, which shows the need for surgeons to fully implement the procedures. Keywords: FMEA, TOPSIS, Risk Management, Surgery department, MADM, Medical centers.
146 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE2 Paper ID: MT-04-55
Using FMEA method in combination with Intuitionistic fuzzy and Multi-criteria decision making methods to assess fire risk in building: A case study in a hospital
Fateme Omidvari1,*, Mehdi Jahangiri1, Reza Mehryar2, Moslem Alimohammadlou3, Mojtaba Kamalinia1 1 School of Health, Department of Occupational Health, Shiraz University of Medical Sciences, Shiraz, Iran 2 School of Mechanic and Aerospace Engineering, Department of Heat and fluids, Shiraz University of Technology, Shiraz, Iran 3 School of Economics, Management and Social Sciences, Department of Management, Shiraz University, Shiraz, Iran * [email protected]
Abstract The aim of this study is to using Failure Mode and Effect Analysis method in combination with Intuitionistic fuzzy and Multi-criteria decision making method to assess fire risk in building. First, a review of previous studies on fire risk assessment was conducted and existing rules were identified. Then the factors influencing fire risk were classified according to FMEA criteria. In the next step, weights of fire risk criteria and sub-criteria were determined using Intuitionistic Fuzzy Multiplicative Best-Worst Method (IFMBWM) and different wards of the building were ranked using Interval valued Intuitionistic Fuzzy Combinative Distance-based Assessment (IVIFCODAS) method. Finally, a case study was performed in one of the hospitals of Shiraz University of Medical Sciences. In this study, fire alarm system (0.4995), electrical equipment and installations (0.277) and flammable materials (0.1065) had the highest weight, respectively. The hospital powerhouse also had the highest fire risk, due to the facilities located in the basement floor, boilers and explosive sensitivity, insufficient access and housekeeping. The use of FMEA methods in combination with the Multi-Criteria Decision Making and Intuitionistic Fuzzy methods assesses the risk of fire in building with great accuracy. Keywords: Failure Mode and Effect Analysis (FMEA), Multi-Criteria Decision Making (MCDM), Intuitionistic Fuzzy, Fire risk assessment, Hospital.
147 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Health, Safety and Environment Session: HSE2 Paper ID: AO-12-167
Converting oil refinery waste into biodiesel to reduce environmental pollution
Afsaneh Alishahi1,*, Mohammad-Taghi Golmakani1, Mehrdad Niakousari1, Masoud Riazi2, Barat Ghobadian3 1 Food Science and Technology Department, School of Agriculture, Shiraz University, Shiraz, Iran 2 Enhanced Oil Recovery (EOR) Research Centre, IOR/EOR Research Institute, Shiraz University, Shiraz, Iran 3 Department of Biosystems Engineering, Tarbiat Modares University, Tehran, Iran * [email protected]
Abstract In this study, acid oil, which is a by-product of oil refinery waste was used for acid- catalyzed esterification reaction to produce biodiesel. The reaction variables were methanol:acid oil molar ratio (1:1, 5:1, and 10:1), catalyst concentration (1%, 2%, and 3%), and reaction time (5, 30, and 60 min). Conversion yield, mass yield, free fatty acid content, and physical properties (viscosity, density, refractive index, color attributes) of all the biodiesel samples were investigated. With increasing the methanol:acid oil molar ratio, catalyst concentration, and reaction time, conversion yield and density increased, while free fatty acid content, viscosity and refractive index decreased. At methanol:acid oil molar ratio of 10:1, catalyst concentration of 3%, and reaction time of 60 min the highest conversion yield (95.32%) obtained, which considered as the optimum condition for acid-catalyzed esterification reaction. Final yield of produced biodiesel at the optimum condition was 84.25%, which confirms that acid oil is a suitable feedstock for biodiesel production. Keywords: Acid oil, Biodiesel, Esterification, Waste.
148 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Other Topics Session: OTH1 Paper ID: AO-12-48
Evaluation of the difference effect of daily intake of vitamin C effervescent tablet supplement versus the effect of a diet rich in vitamin C for two weeks in reducing the blood lead levels of welders and fitters with final purpose of increase body immune system strength in an oil & gas project in south west of Iran caused by the use of an Iranian brand electrodes
M.Shakoorian1, H.Babakpour2,*, M.Entezam3, A.Ale'Eisa4, S.Sorouri5, A.Farmani6, M.Nabhani7 1,2,3,4,6,7 Iran Ofogh Industrial Development 5 Payesh System Sepehr Consultant & Servises * [email protected]
Abstract Lead (Pb) has not played a beneficial role in human’s body and studies have shown that it has destructive effects on both biosynthesis and the nervous system. The role of vitamin C or ascorbic acid in the treatment of this chemical element in several studies on humans and animals in recent decades has showed conflicting results on the neutralizing effect of lead toxicity. In this study, the results of a double-blind clinical trial on the effect of two weeks of daily intake of 1000 mg effervescent tablets of vitamin C on blood lead levels of 14 welders and fitters versus blood lead levels of 14 welders and other fitters after two weeks of controlled diet Rich in vitamin C, which were randomly divided into two groups, the study aimed to observe the results on blood lead level, total blood ascorbic acid and hemoglobin concentration in the statistical population that used Iranian electrodes. The results showed that after two weeks daily intake 1000 mg of vitamin C (using both methods), reducing blood lead levels and its side effects in workers who are exposed to jobs exposure to lead, probably It can be a preventative, economical method without side effects. Keywords: Vitamin C effervescent tablets, Ascorbic acid, Lead poisoning, Welder and fitter, Diet, Iranian electrode.
149 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Other Topics Session: OTH1 Paper ID: AO-12-121
Analysis of Health Perceptions of Chemical Pesticides and the Use of Personal Protective Equipment Among Potato Farmers
Mojtaba Sookhtanlou Assistant Professor, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran [email protected]
Abstract The purpose of this study is to analyze the perception of the health risk of chemical pesticides and the use of personal protective equipment (PPE) among potato farmers in Ardabil province. Using the table of Bartlett et al., 370 farmers were selected by multi-stage sampling method. First, farmers' perceptions of the health risks of chemical pesticides and the use of PPE were assessed. Then, according to the World Health Organization rating, the degree of danger and toxicity of commonly used pesticides were measured. The findings showed that farmers use a different number of PPE based on their perception of their health risk from chemical pesticides. They had the lowest perception of health hazards and the lowest level of PPE compared to Paraquat and Chlorpyrifos. They also had the highest perceived health risk compared to Metribuzin and Imidacloprid, and used the PPE more for Diazinon and Imidacloprid pesticides. However, according to the World Health Organization ranking, among the 8 pesticides studied, Chlorothalonil and Trifluralin pesticides had the lowest health risk and Chlorpyrifos and Paraquat pesticides had the highest degree of toxicity. Therefore, farmers' misperception of the health risk of pesticides has a very negative effect on the use of PPE and their health, and it is necessary to improve farmers' knowledge and awareness in this field. Keywords: Farmers Perception, Health Risk, Chemical Pesticides, Personal protective equipment.
150 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Other Topics Session: OTH1 Paper ID: OT-00-164
Integrated Pest Management Is the Most Efficient and Safest Pest Risk Management Solution in Museums
Manijeh Hadian Dehkordi1, Farah Sadat Madani1, Nasrin Noohi Babajan1, Fereshteh Sadat Hashemian2 1 Research Institute of Cultural Haeitage and Tourism, Tehran, Iran 2 Shahid Beheshti University, Tehran, Iran
[email protected] Abstract Preventing pest damage is a major challenge in caring museum collections and archives. The Integrated Pest Management (IPM) program is currently the preferred option in the cultural heritage sector to protect collections against insect pests and microorganisms. One of the important features of IPM is monitoring and recording information related to pests. The use of blonder or sticky traps as a supplement to visual inspection is one of the ways of long-term monitoring of insect populations in different museum locations, which was used in this study to monitor a number of museum environments. Also, to investigate the biological air pollution in these environments, the method of plate plating and measuring the population of fungi and bacteria through mathematical calculations was used. The results of monitoring showed the types of insects and microorganisms in some of the studied areas, which mainly indicated the unfavorable environmental conditions. The most important preventive measures in this regard are the implementation of a permanent monitoring program in the museum, thorough cleaning of all places in the museum, closing all openings and ways for pests to enter the museum, quarantine new works in the museum and control the temperature and relative humidity.
Keywords: IPM, Monitoring, Museum, Pest and Preventive conservation.
151 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Information Technology Session: IT Paper ID: AO-06-27
Comparative Analysis of Recurrent Neural Networks for Natural Gas Quality Analysis
Ivan Brokarev1,*, Mais Farkhadov2, Sergei Vaskovskii2
1Federal State Autonomous Educational Institution of Higher Education «Gubkin Russian State University of Oil and Gas» (National Research University)», Moscow, Russia 2V. A. Trapeznikov Institute of Control Sciences of Russian Academy of Sciences, Moscow, Russia *[email protected]
Abstract The correlation methods are developed for real time natural gas quality analysis. Various statistical models are often used in correlation methods due to the impossibility or high complexity of solving the problems with traditional methods. The choice of a model for the problem under discussion is mostly made by heuristic methods due to the lack of a general algorithm for choosing a model and a variety of both statistical models and architectures of specific models. This paper provides a comparative analysis of the main models that are used to solve the task of natural gas composition analysis. Based on this analysis, the conclusions are drawn about a specific model that is most appropriate to apply to existing data. Keywords: machine learning; statistical models, neural network analysis, natural gas.
152 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Information Technology Session: IT Paper ID: AO-06-78
Investigating the Reliability in Three RAID Storage Models and Effect of Ordering Replicas on Disks
Leila Namvari Tazeh-Kand, Saeid Pashazadeh*
Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, East Azerbaijan, Iran *[email protected]
Abstract One of the most important parts of cloud computing is storage devices, and Redundant Array of Independent Disks (RAID) systems are well known and frequently used storage devices. With the increasing production of data in cloud environments, we need high-reliable storage, given the importance of data. RAID system's reliability analysis is of particular significance in the area of cloud storage. Generally, data redundancy is used to create fault tolerance and increases the reliability of storage. This study has considered three examples of the simple RAID storage models and analyzed their reliability. All of which have a replication factor of two and have the same number of disks and reliabilities. The only difference is the model that they used for generating the redundancy. To compare these three models' reliability, we examined the degree of fault tolerance (FT) and calculated the models' reliability using the reliability block diagram (RBD). In this paper, the effect of redundancy's type and the blocks' arrangement on the system's reliability was investigated. Keywords: RAID, Reliability, Fault Tolerance, Redundancy, Parity Code, Reliability Block Diagram
153 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Information Technology Session: IT Paper ID: AO-11-166
A Fault Tolerant Linear Feedback Shift Register
Mohammad Zaree1,*, Mohsen Raji2 1 School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran 2 School of Electrical and Computer Engineering,, Shiraz University, Shiraz, Iran * [email protected]
Abstract Linear Feedback Shift Registers (LFSR) are extensively used in variety of applications such as Built-In-Self-Test circuits or Pseudo Random Number Generators. Hence, fault tolerant design of LFSR is essential for the applications with high reliability demands. Traditional fault tolerant LFSRs include large number of Single-Point-of-Failures (SPoFs) in which any fault results in the whole system failure. In this paper, a new fault tolerant architecture for LFSR (named as FT-LFSR) is proposed in which the number of SPoFs are significantly reduced compared to the previous ones. To this end, a modified version of Triple Modular Redundancy (TMR) empowered with some extra controlling units for identifying the operational module is used. Experimental results show that, the FT-LFSR is resilient to all single transient and permanent faults except in its limited SPoFs and many patterns of multiple faults. Keywords: Built in self test, Fault tolerance, FPGA, LFSR, Test, TMR.
154 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Information Technology Session: IT Paper ID: AO-06-149
Robust Control of PLC Against Memory Attack and Sensors Failures
Seyyed Mohammad Mahdi Hashemi, Ashkan Sami*
Shiraz university, Shiraz, Iran *[email protected]
Abstract Previous attacks such as the Stuxnet, have shown there are parties with the motivation and resources to effectively attack control systems. Loss of the correct data of the PLC memory, is one sources of damage to these industries. In this study, the author collects a dataset of attacks on PLC memory and proposes a risk assessment method in the field of dependability and security on PLC memory and a mechanism to robustness against these abnormal conditions. Using the collected data in the dataset and simulation of sensor failure, the risk assessment and the effectiveness of the resistance method have been expressed. The risk assessment method reports the risk by detecting error during attacks as well as sensor failure, and the resistance method uses simulated data during the attack to allow the controller to continue its activity. This dataset is created by 31 attacks on 3 different processes. The result of the risk assessment indicates that memory is re-written in 62% of an attack time and demonstrate the effectiveness of response mechanism. Keywords: Industrial Control System, Programmable Logic Controller, Sensor, Actuator, dataset, Memory Attack.
155 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-13-82
Identification and Assessment of Risk by the Method of Preliminary Risk Analysis (PHA) in a Steel Industry in 2020
Maryam Abdollahi1,*, Hamed Rahimi2
1 BS student in Occupational Health Engineering, Research Committee, Faculty of Health, Zanjan University of Medical Sciences, Zanjan, Iran 2Master Student of Health, Safety and Environmental Management (HSE), Faculty of Health, Zanjan University of Medical Sciences, Zanjan, Iran *[email protected]
Abstract Industrial accidents, despite their high cost and the loss of millions of lives, can often be prevented through risk assessment methods and control measures. Therefore, in order to identify and assess the risk by the method of preliminary risk analysis (PHA) in the production line of East Azerbaijan steel industry, with the help of an assessment team, which is a descriptive-analytical cross-sectional research. Done. Also, in order to identify the risks, questions and answers were done in this study and the potential risks for this section were identified using PHL and the risk review list. In total, 272 risky cases were found in this study. Of these, 26 cases (10%) were unacceptable risks with the need for immediate action, 132 (49%) and undesirable risks, 65 cases (23%) were also acceptable risks with the need for revision, of which the highest risk was for The floor is 84 (30%) and the lowest for walls is 16 (6%). It is recommended that the implementation of regular safety, health and environmental risk analysis programs be put on the agenda to reduce the level of identified hazards. Keywords: Steel Industry, PHA, Preliminary Risk Analysis, Risk Assessment, East Azerbaijan.
156 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-13-35
Evaluation of Safety Status to Shahriar Educational Environment by the Checklist System for Safety Reports
Mojtaba Rezaie MSc in Engineering and Construction Management, Alborz University, Qazvin, Iran [email protected]
Abstract One of the main concerns in educational environment is the safety. In this regard, risk assessment can play an important role in achieving safety goals. The aim of the article was to estimate the risky condition of Shahriar educational environment by the checklist system to determine the potential hazards in there. The present descriptive and analytical study was carried out on the Shahriar schools. After the inspection of more than ten schools, the both advantages and disadvantages of application of the checklist system for safety reports were surveyed. The advantages and disadvantages of schools’ safety checklist were surveyed with seven and eleven major safety faults, which are categorized in critical points to specified the mode of failures for risky condition. Finally the surveyed schools divided into the red, orange, and green level to specified critical point for taking the emergency control actions. The checklist system can identify and assess systematic faults, lack of equipment, and the existence of safety signs. Moreover, after evaluation of the educational environment safety, the article had presented the educational environment safety checklist (EESC) method which was amended by the OSHA 1910. 119. Standard. This method is more effective than the previous one in assessment of critical gaps of safety. This technique can be used as a qualitative risk assessment method in educational environment and its weaknesses can be improved by future studies. Keywords: Checklist System; Safety Reports; Safety Status.
157 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-14-33
Assessment, Analysis and Risk Management in the Production Process of Products with a Fuzzy Control Approach
Mahdi Rahimdel Meybodi PhD Student of Industrial Engineering, Payam noor University, Tehran, Iran [email protected]
Abstract Today, one of the most important concerns of production units is the evaluation, analysis and risk management in the production process. In this research, based on the fuzzy control approach, a scientific and logical method for evaluating, analyzing and managing risk in the production process is presented. Based on the proposed method of this research, after identifying the risks in the production process of products, according to the three criteria of failure severity, probability of failure and detectability, as well as using the best - worst method, evaluation and determining the importance of these risks, is done. . Then, taking into account the fuzzy rules, the relevant fuzzy inference system is designed, the final result of which is the classification and prioritization of identified risks. Finally, the proposed research model for an applied sample is used and its final results are analyzed. Keywords: Risk, Database of Rules, Best-Worst Method, Improvement Priority, Fuzzy Inference System.
158 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Oral Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-06-161
Occupational Safety and Health Risk Management in Steel Mills using the Failure Modes and Effect Analysis (FMEA) Method
Esmaeil Alinezhad1,*, Mahtab Dehghani2 1 Assistant Professor, Department of Industrial Engineering, Shiraz University of Technology, Shiraz, Iran 2 B.Sc. student, Department of Industrial Engineering, Shiraz University of Technology, Shiraz, Iran * [email protected]
Abstract The effects and consequences of chemical and socio-environmental accidents in steel industry have made it to be known as one the most hazardous industries. Risk identification and assessment are the driving force and the heart of occupational safety and health management systems in the manufacturing plants. Section 3/4/1 of the OHSAS 18001 standard addresses this issue as planning for the hazard identification, risk assessment and control. There are many methods to assess the risk, however, only those ones are useful which are consistent with the nature of the activities, processes, culture, and other characteristics of the organizations, as well as the utilization simplicity. Implementation of risk identification, classification and evaluation plans by FMEA is one of the advanced methods of risk assessment and management in the steel industry. Therefore, the potential risks of this industry, which threaten the personnel’s health and safety, are systematically investigated by FMEA in this study. Computational results demonstrate that "not paying attention to the safety cautions when working with electricity" is placed on the top of failure modes, which can be prevented by training and reminding the safety tips to the personnel and fully equipping them. Keywords: HSE, FMEA, Steel industry, Risk assessment and management, Occupational health.
159 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
Poster Session Abstracts
160 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV4 Paper ID: AO-03-12
Dependency Analysis of the Seismic Response of Highway Bridges to the Maximum Amplitudes of Ground Motion
Nasrollah Eftekhari1,*, Sasan Motaghed2, Fatemeh Samareh3, Hadi Sayyadpour4 1,4Faculty of Technology and Mining, Yasouj University, Choram 75761-59836, Iran. 2,3School of Engineering, Behbahan Khatam alanbia University of Technology, Behbahan, Iran. *[email protected]
Abstract In this study, we investigate the dependency between different seismic responses of a highway bridge to the maximum amplitude of ground motion. For this purpose, the tools of principal component analysis approach have been used. In order to perform nonlinear time history analysis, a set of records from the NGA-West2 database was used. The results indicate that the different seismic responses of bridges are more dependent on the peak ground velocity than peak ground displacement and peak ground acceleration. Thus, it is very important to consider this intensity measure in the ground motion selection procedure in order to assess the vulnerability or design of the box girder concrete bridges. Keywords: Intensity Measure, Dependency Analysis, Concrete Bridge, Ground Moti.
161 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV4 Paper ID: AO-03-155
Reliability Study of natural slope stability by MCMC and FLEM analysis
Payman Gholbeigi, Sadegh Sadeghi Isfahan, Iran
Abstract In this paper reliability of slope stability problem is studied by MCMC method. In addition, for calculating corresponding limit state function FLEM method is used and also some numerical techniques are invented for mapping isoperimetric element if FEM meshes. In general cases geotechnitions always use CSF criteria, but in present study researchers used Monte Carlo simulations and MCMC method and compared these with CSF, to prove performance of suggested algorithm. Keywords: Slope Stability, Reliability Analysis, Subset simulations, Markov Chain- Monte Carlo.
162 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV4 Paper ID: AO-03-81
Stochastic Site Response Analysis of Sandy Soil by Random Finite Difference Method
A. Johari1,*, S. Pourbeirak2 1 Associate Professor, Department of Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran. 2 Master's student, Department of Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran. *[email protected]
Abstract Site response analysis is usually the first step of any seismic soil-structure study. Geotechnical earthquake engineers and engineering geologists have been trying to find practical and most appropriate solution techniques for ground response analysis under earthquake loadings. Site response analysis is strongly influenced by the uncertainty associated with the definition of soil properties and model parameters. Deterministic or even parametric analyses are unable to systematically assess such uncertainty since the site characterization can hardly be sufficiently accurate for a deterministic prediction of site response, and alternative approaches are hence needed. In this paper, A stochastic procedure for estimating the site amplification of ground motion is proposed and applied to a sandy soil model by FLAC. The bulk modulus, shear modulus, and density of the soil layer are selected as stochastic parameters. The acceleration, velocity, and displacement response spectrum at the base and surface of the layer are compared. A comparison of the stochastic result shows that the displacement response spectra have more uncertainties with respect to others. Keywords: Stochastic analysis; Site response; Random finite difference method; Ground motion; Uncertainty
163 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV4 Paper ID: AO-03-91
Probabilistic seismic hazard analysis using fuzzy theory for a specific site located in Rasht City
Sajad Roohbakhsh1,*, Saeid Pourzeynali2 1 M.Sc. Student, Department of civil Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran 2Professor, Department of civil Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran *[email protected]
Abstract In this study, based on the combination of fuzzy theory and probabilistic seismic hazard analysis, the seismic hazard curve is presented for a specific site located in Rasht City. For this purpose, a complete catalog of earthquakes that occurred in 150 km around the site was collected from national and international agencies. To unify the catalog, all reported magnitudes were converted to moment magnitudes using appropriate relationships. Also, to achieve the Poisson distribution, aftershocks and foreshocks were eliminated from the catalog using the method proposed by Gardner and Knopoff. The catalog was then analyzed to determine the completeness period and time intervals with different magnitude of completeness. Using the fuzzy clustering method, 9 area sources were identified in the region, and the seismicity parameter related to each source was determined using the seismic catalog. Finally, using the attenuation relationship evaluated based on fuzzy logic and performing fuzzy arithmetic, the seismic hazard curve was calculated. Accordingly, the site's maximum acceleration was obtained 0.23g for the 475-year return period and 0.48g for the 2475-year return period. Keywords: Seismic hazard analysis, Fuzzy theory, Peak ground acceleration, Seismic catalog, Rasht.
164 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV4 Paper ID: AO-03-92
Safety Management Analysis in Iranian Project Management Research Using Text Mining Approach and Reverse TF-IDF Method
Majid Parchamijalal1, Mohammad Amin Ghaaderi2,* 1 Associate Professor, Project and Construction Management Department, University of Tehran, Tehran, Iran 2 Ph.D. Candidate, Project, and Construction Management Department, University of Tehran, Tehran, Iran *[email protected]
Abstract The purpose of this study is to review academic research on project management in Iran from the perspective of safety management, using the text mining approach and TF-IDF method. In other words, this study investigates safety management in project management research in Iran over a period of five years. The research database consists of 608 dissertations in the discipline of "construction management" and 597 dissertations in the discipline of "project and construction management ". The website of the Central Library of Universities has been used for data collection, and the text mining approach, along with the TF-IDF method, has been used for data analysis. Dissertations and academic research can be reviewed and categorized in different ways. Studying these reviews based on time periods has advantages, and in addition to showing the trend of thematic changes in the research over time, it also introduces the subjects that have received the most attention and the topics that have been neglected. The innovative aspect of this research is that for the first time, academic research on project management has been examined from the perspective of safety management and is also one of the first researches in which a text mining approach has been used to analyze dissertations. Keywords: Safety Management, Project Management, Text Mining, Data Mining, Academic Research.
165 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV4 Paper ID: AO-03-93
Review of the application of artificial intelligence and machine learning models in the safety management of construction projects
Majid Parchamijalal 1, Zahra Shokrani 2,* 1 Associate Professor, Project and Construction Management Department, University of Tehran, Tehran, Iran 2 Masters student, Project, and Construction Management Department, University of Tehran, Tehran, Iran *[email protected]
Abstract The purpose of this study is to identify and rank machine learning models in the safety management of construction industry projects. In other words, this study is a review of the application of artificial intelligence and machine learning in the safety management of construction projects. The research community consists of 5318 articles published between 2017 and 2019 in 15 international journals that have used machine learning models in the construction industry. The database of the mentioned publications has been used to collect articles, and the titles and keywords of the articles have been examined to determine their subject matter. Notable results of this research are 1- Determining the percentage of frequency of articles that have used machine learning models in the safety management of the construction industry and comparing it with other topics in which machine learning models have been used. 2- Identify the machine learning models that have been most used in safety management in the construction industry. The innovative aspect of this research is that for the first time in Iran, a review of the application of machine learning models in the safety management of the construction industry has been done. Keywords: Project Management, Artificial Intelligence, Construction Industry, Machine Learning, Safety Management.
166 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC5 Paper ID: AO-09-108
Review of MNSR Fuel Conversion Impact on its Reactor Safety
K. Hadad1, A. Izadi1,*, J. Mokhtari2
1Department of Nuclear Engineering, Shiraz University, Shiraz, Iran 2Reactor and Nuclear Safety Research school, Nuclear Science and Technology Research Institute, AEOI, Isfahan, Iran *[email protected]
Abstract In this brief study, the impact of fuel conversion on well-aged reactor safety, specially MNSR, is reviewed. As the necessity of fuel conversion in the MNSR reactors is under discussion, it is obvious that safety parameters of this operation should be studied. In this paper, 4 studies concerning reactor safety and important neutronic parameters before and after reactor fuel replacement for number of MNSR reactors are investigated and discussion is made on the safety aspect of the matter. Keywords: MNSR, fuel conversion, Reactor safety, LEU, HEU.
167 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC5 Paper ID: AO-09-180
Safety evaluation of advanced small modular reactor during normal operation
Saeed Zare Ganjaroodi1,*, Ehsan Zarifi2, Kamran Sepanloo2
1 Faculty of Engineering Science and Research Branch, Islamic Azad university, Tehran, Iran 2 Reactor and Nuclear Safety Research school, Nuclear Science and Technology Research Institute, Tehran, Iran *[email protected]
Abstract CAREM-25 reactor is one of the advanced Small Modular Reactors (SMR) of pressure water reactor and the only reactor of this type in the world with fuel enrichment below 4% and electrical power of below 30 MW, which is designed in Argentina. Hence, considering that one of the main advantages of small modular reactors is the high safety of these reactors during normal operation as well as the prevention of possible accidents, in this paper, reactor systems are simulated using two powerful nuclear simulator codes, MCNPX2.7.0 and SuperMC3.2.0 to calculate and analyze control and safety parameters such as dose values reached around the core the value of control rods, excess reactivity and shutdown margin using control rods at the time of the accident. The data obtained from the two codes are compared together and previous reports. To show appropriate consistency for validation. Results showed that in order to create a critical condition in the core of reactor in order to achieve the highest power in the safest state, both the mechanisms of safety and adjust control rods must enter the into the core with certain percentages. Keywords: CAREM-25, Small Modular Reactor (SMR), MCNPX2.7.0, SuperMC3.2.0.
168 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC5 Paper ID: AO-09-182
Safety analysis and control parameters of advanced small modular reactor with liquid metal coolant
Afsaneh Abolhasani1, Saeed Zare Ganjaroodi1,*, Ehsan Zarifi2, Kamran Sepanloo2
1 Faculty of Engineering Science and Research Branch, Islamic Azad university, Tehran, Iran 2 Reactor and Nuclear Safety Research school, Nuclear Science and Technology Research Institute, Tehran, Iran [email protected]
Abstract In recent years, the tendency to build advanced small modular reactors due to the need for production units in power grids, especially in remote areas and sparsely populated cities according to the many advantages of this type of reactors, including power plant economy, easier commercialization, higher safety and others is increasing. Hence, the purpose of this study is to investigate the safety and control parameters of ALFED reactor using MCNPX code modeling as one of the small modular reactors of the new generation. The main characteristics of this reactor can be high intrinsic safety, equipment simplicity, no need to refuel for several years, higher efficiency and, lower operating costs. In this paper, in addition to analyzing and comparing this new generation of small modular reactor with liquid metal coolant, some control parameters of the reactor core such as the effect of control rods on neutronic behavior and criticality have been evaluated. The most important difference between this reactor and other fast reactors designed and built in the world is the integration of equipment and first cycle systems inside the reactor pressure containment. Keywords: Modular, Safety, Alfred, MCNPX, criticality.
169 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC5 Paper ID: AO-09-193
Oil-water component fraction measurement by combining the gamma-ray technique with a dynamic laboratory-scale liquid-liquid mixer
Mohsen Sharifzadeh
Nuclear Science and Technology Research Institute, Tehran, Iran [email protected]
Abstract: The application of TPFHL as a novel two-phase flow Homogenizer loop in conjunction with the gamma-ray attenuation technique is emphasized. At first, the capability of this instrumentation for delivering a homogenoues mixture was confirmed by achieving acceptable component fraction measurement results using different fractions of iron ore powder-water two-phase mixtures. In the following different fractions of water-Normal Decane (ND) as a good as well as a standard alternative to water-oil were prepared and fed to the test loop. Finally, by measuring these different component fractions using a gamma-ray sensor and comparing results with the prepared ones it was confirmed that we achieved to an acceptable component fraction measurement device which can be used as an important section of a two-phase flow meter in gas/oil industry. Keywords: component fraction measurement, gamma-ray technique, homogenization, mixer, laboratory-scale, oil-water two phase.
170 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC5 Paper ID: AO-09-194
Improving the safety of Tehran research reactor during nuclear accidents
Saeed Zare Ganjaroodi1,*, Mohammad Morshedi Tofigh1, Ehsan Zarifi2, Kamran Sepanloo2
1 Faculty of Engineering Science and Research Branch, Islamic Azad university, Tehran, Iran 2 Reactor and Nuclear Safety Research school, Nuclear Science and Technology Research Institute, Tehran, Iran *[email protected]
Abstract To ensure that an accident does not occur in nuclear reactors and also to control its operation in different conditions, it is very important to consider all aspects of the safety of the reactor site. Due to the fact that research reactors are generally designed and built in urban areas, they need to pay more attention to safety technical issues. The need for safer and more economical design in future generations of research reactors has always posed many challenges, including efficiency optimization and safety analysis for nuclear engineers. Hence, in this paper, an attempt has been made to model the Tehran research reactor using the SuperMC3.2.0 code and a more detailed study of the fuel assemblies network, grid spacers, and reactor shutdown systems, a passive mechanical safety system to shut down the reactor. Accidents should be designed by creating regular intervals in the rows of fuel assemblies in the core of the reactor. In this regard, after presenting the new modeling, the neutronic parameters of the core including K-factor, excess reactivity and neutron flux distribution were calculated and compared in the new conditions of passive shutdown system to validate the values with high accuracy. Results showed that by creating a distance of more than 30 (cm) between rows 4 and 5 of the reactor core, the K-factor can be reduced below one and the negative reactivity produced can reduce the neutron population and then shut down the core. Keywords: Tehran research reactor, SuperMC3.2.0, Grid spacers, Neutronic, Passive.
171 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC5 Paper ID: AO-09-195
Salinity measurement of produced water in oil/gas rigs using gamma-ray technique
Mohsen Sharifzadeh*, Ali Taheri, Mohammad Taghan Sasanpour
Nuclear Science and Technology Research Institute, Tehran, Iran *[email protected]
Abstract In this research work, the possibility of measuring the salinity of the produced water output from the separators installed on oil and gas platforms was investigated. While, multiphase flow meters are working based on calibration data such as the produced water salinity, changes in this data over time can have a devastating effect on the measurement results. Instantaneous measurement of this salinity and subsequent correction of calibration data related to the gamma-ray attenuation coefficient of saline water can solve this problem. In this study, 13 different percentages of potassium chloride salt were prepared and the calibration curve of the gamma-ray densitometer in the laboratory was plotted using the counted intensities. The results show that the accuracy of measurement in the worst case and for the mass percentage of 0% is equal to 2.4%, which will have a decreasing trend with increasing mass percentage, so that for the mass percentage of 24% is at a minimum value of 1.7%. Keywords: salinity, salinity measurement, gamma-ray densitometry, rig, oil/gas.
172 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: AO-03-31
Dynamic reliability analysis of moment resisting concrete frames
Aram Saaed1, Mohammad Daghigh2,*
1Phd candidate, International Institue of Earthqake Engineering and Seismology, Tehran, Iran [email protected] 2Assistant Professor, International Institue of Earthqake Engineering and Seismology, Tehran, Iran *[email protected]
Abstract In this article, two moment resisting concrete frame structures are designed based on topic 9 of the Iran National Building Regulations and its analytical model is constructed. Using OpenSees software, the finite element simulations and reliability analysis are performed with different distribution functions for the parameters. By using the generated parameters, the ultimate limit functions for structural failure are examined. Keywords: Reliability Analysis, Simulation methods, Dynamic analysis, Moment Resisting Frame.
173 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Civil Engineering Session: CIV2 Paper ID: MT-16-14
Prediction of the Wear and Friction Rate for Composite AL380- Fly Ash via Neural Networks
Mohammad Ali Farsi*, Mohammad Lesani
Aerospace Research Institute, Ministry of science, Research and Technology, Iran [email protected]
Abstract In the present study, an artificial neural network model (ANNs) was developed to predict the wear rate and another artificial neural network model was created to predict the friction coefficient of aluminum ash composite. Aluminum ash composites with different weight percentages are made by casting and stirring. The data obtained from abrasion testing using a pin abrasion tester on the disk at different forces and speeds, were used to train and model the neural network. The results show that the developed neural network models can predict the wear rate and coefficient of friction with an accuracy of more than 97%. This result is better than the previous studies. This neural network can be considered in physic of failure studied to determine the lifetime of a component in a wear process. Keywords: Wear Mechanism, Neural Network, AL Composite, Lifetime.
174 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Health, Safety and Environment Session: HSE(1) Paper ID: MT-06-128
Consequence Analysis and Modeling of Behnoush Iran Ethanol Storage Tank Accidents Using PHAST Software
Tayebeh Khosravi1,*, Zahra Sojoudi2, Nioosha Abbasian Chouri3 1 Assistant Professor, Department of Safety Engineering, Faculty of Engineering, University of Science and Culture, Tehran, P.O. Box 871-13145 2 Postgraduate Student in HSE Engineering, Faculty of Engineering, University of Science and Culture, Tehran, P.O. Box 871-13145 3 Graduated in Safety Engineering, Faculty of Engineering, University of Science and Culture, Tehran, P.O. Box 871-13145 * [email protected]
Abstract The presence of chemicals in process industries such as the food industry has always been subject to risks like fire, explosion and release of toxic substances. The occurrence of such incidents have serious impact on the funds and life resources. In this article, we have tried to identify hazards of Ethanol storage tank with PHAST modeling to provide solutions to reduce and manage risks in Behnoush Iran Company. The most dangerous scenarios were selected according to the available conditions 100 mm diameter tank leakage, 3 inch diameter short pipe leakage and Tank rupture in the summer and winter cases. The most important note due to fire and radiation of fire, which can cause very serious damage to persons and equipment. Therefore, by modeling and evaluating the consequences of such accidents, it was proposed to reduce the risks and prevent the occurrence of more serious accidents by using more advanced fire detection and firefighting equipment, the use of fireproof structures, continuous training of people, and the promotion of safety culture and fire team deployment. Keywords: Consequence Modeling, PHAST, Ethanol Storage Tank, Fire, Explosion.
175 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Health, Safety and Environment Session: HSE(1) Paper ID: AO-12-122
Identify the most important protective measures of farmers in the application of chemical pesticides
Mojtaba Sookhtanlou1,*, Mahyar Sahraei2 1 Assistant Professor, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran 2 Master student of Agricultural Management, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran * [email protected]
Abstract Potato (Solanum tuberosum L.) is the most important strategic crop of Ardabil plain (one fifth of potato production in Iran) where the risk of farmers' health is increasing due to the increasing use of chemical pesticides. Therefore, the main purpose of this study was to identify the most important protective measures of farmers in the application of chemical pesticides among potato farmers in Ardabil plain (Iran). The statistical population of the study included all potato farmers with 4876 people. The sample size was determined by Bartlett et al. Table for 370 people (counties of Ardabil (193 potato farmers), Namin (104 potato farmers) and Nir (73 potato farmers)) using multi-stage sampling method. In this study, to explain the protective measures and safety behaviour of farmers in the stages of using chemical pesticides, four stages (preparation and storage of pesticides, preparation of pesticides, application of pesticides and post-application of pesticides) were considered. The results showed that the first priority of the protective measures of the respondents in the stages of preparation and storage, preparation of pesticide, stages of application of pesticides and post-application of pesticides are related to the items "determining the appropriate type of pesticide for pest and production and expiration date", "preparing pesticide outside the home", "using boots" and "changing clothes after each spray" respectively. Keywords: Protective measures, Potato farmers, Chemical pesticides, Ardabil plain
176 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: Nuclear Industry(2) Paper ID: AO-09-202
Predicting the distribution of radioactive materials from the proposed Fars research reactor in Bajgah in normal operation and accident conditions using HYSPLIT software
N. Manouchehri1, M. R. Nematollahi1,2,*, Y. Hamidi Athar1 1 School of Mechanical Engineering, Shiraz University 71936-16548, Shiraz, Iran 2 Safety Research Center of Shiraz University 71936-16548, Shiraz, Iran * [email protected]
Abstract In the site selection study of Fars research reactor by using GIS facilities in Arc-GIS 10.4 software environment, carried out for the three cities of Shiraz, Marvdasht and Sarvaristan, the results have shown that, Bajgah site in the Shiraz city is the preferred site for the construction of Fars research reactor. The present study aim is to investigate the scattering paths and the concentration of radioactive nuclei in the atmosphere and their deposition on the surface due to normal operation and after a hypothetical accident of the proposed research reactor in Fars. Since the conceptual design of the proposed Fars research reactor is being modeled on the Tehran research reactor, the specifications of the Tehran research reactor have been used in this research. Using the meteorological data of the global data synchronization system, during 2016 and the specifications of the Tehran research reactor for the Bajgah site, simulation has been performed in HYSPLIT software. The effective annual total dose was calculated and the dose was compared with the limits set by the International Commission on Radiological Protection. The results show that, assuming that the research reactor operated at the Bajgah site during 2016, the highest dose received in normal operation was 6.05E-05 Sievert and at the time of the accident was 4.46E- 03. The research process can be expanded to predict the release of radioactive materials from the Fars research reactor of in the proposed site of Bajgah in normal operation and accident conditions at any time in future. Keywords: Research reactor, Radioactive material dispersion, HYSPLIT, TEDE.
177 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: Nuclear Industry(2) Paper ID: AO-09-21
A Review on Status, Performance and Challenges of Nuclear Accident Tolerant Fuel and Cladding
Mahdi Aghili Nasr, Seyed Ali Hosseini*, Ahmadreza Zolfaghari, Amir Saeed Shirani
Faculty of engineering, Shahid beheshti univercity, Tehran, Iran *[email protected] Abstract The cladding and fuel material selection in nuclear power plants as the first barrier in defense in depth (DID) strategy have an essential role against leakage of radioactive products. After the Fukushima accident that the radioactive materials are released into the environment, the replacement of standard fuels with accident tolerant fuels (ATF) was proposed as an innovative strategy in the light water reactors against nuclear accidents. In this paper, the physical properties and performance of the most important cladding and fuel materials proposed as ATF have been studied, along with reviewing the latest studies in the safety-related and neutronic analysis of these fuels. The clad of ATFs include coating materials on current zirconium clads or changing the clad material to increase oxidation resistance and failure point. Accident tolerant fuels include monolith metal fuels or dispersed fuels in a matrix to improve the thermal properties and further retain the fission products. The various studies' results show that SiC cladding and ZrSi2 coating have the least neutronic variation in comparison with the reference state. Also, the FCM-SiC fuel combination has the highest accident resistance.
Keywords: First level of Defense in Depth, FeCrAl, SiC, Ti3SiC2, U3Si2.
178 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: Nuclear Industry(2) Paper ID: AO-09-58
Design of dual cooled fuel assembly with 14×14 array and investigation of the effect of internal channel radius of fuel on the reactor safety parameters using gene expression programming
Hossein Zayermohammadi Rishehri, Majid Zaidabadi nejad*
1Department of Nuclear Engineering, Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Haftbagh St, Postal Code: 7631818356, Kerman-Iran *[email protected]
Abstract In this research, a dual cooled fuel assembly with 14 × 14 array is initially designed for a small modular reactor. Then, using the gene expression programming algorithm, the effect of the internal channel radius in the annular fuel on the important safety parameters of the reactor, such as the maximum fuel temperature and the Minimum Departure from Nucleate Boiling Ratio of the core, has been investigated. In the matter of neutronics, the designed fuel is not much different in safety from the solid fuel. However, in the case of thermal-hydraulics, a large temperature difference was found between annular fuel (615 ° K) and solid fuel (672 ° K). The use of this fuel also increased the Minimum Departure from Nucleate Boiling Ratio to 2.6103, which is very important from a safety point of view and increases the safety of the reactor. In the study of the change of the inner radius, on the neutron and thermohydraulic parameters, it was shown that increasing the inner radius increases the safety to some extent. However, from a certain value onwards, it increases the temperature and decreases the safety of the reactor. This limit radius (0.25 cm) was introduced as the optimal value of the internal radius based on the greater safety of the reactor. Keywords: Dual-cooled fuel; Small Modular Reactor; Gene Expression Programming.
179 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: Nuclear Industry(2) Paper ID: AO-09-189
Assessment of the core catcher safety system in VVER-1000 reactor containment in SBO accident using MELCOR code
F. salari1,*, F. Faghihi1,2,3, A. Rabiee1
1 Department of Nuclear Engineering, School of Mechanical Eng. Shiraz University, Shiraz, Iran 2 Radiation Research Center, Shiraz University, Shiraz, Iran 3 Ionizing and Non-Ionizing Research Center, Shiraz University of Medical Science, Shiraz, Iran *[email protected]
Abstract Melting corium cooling after a severe accident at nuclear power plant is important and necessary. Because if following a severe accident, if the molten corium does not cool, it destroys the reactor containment due to the accumulation of gases caused by the MCCI reaction and causes radioactive materials to enter the environment outside the reactor containment. For this reason, it is important to use the core catcher system to reception, localization and cool-down of the molten corium in the course of severe accident. In this study, the role of Core Catcher (CC) safety system in the VVER- 1000/v528 reactor containment of BNPP in the SBO severe accident has been evaluated using MELCOR1.8.6 code. As well as, the analysis of thermal-hydrolytic behavior of reactor containment in different states such as dry cavity and wet cavity and also core catcher system for two states with water around CC system and without water around it has been investigated. The results of this study shows that the presence of the CC system has significant effects on the cooling of molten corium, and following that cause reduction of gases resulting from MCCI phenomenon (H2, CO, CO2) . Also, the results showed that if the core catcher's safety system is water around it, better results are seen. Keywords: Core Catcher, VVER-1000/v528, containment, SBO, MELCOR.
180 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: Nuclear Industry(2) Paper ID: MT-10-61
Consideration of Alteration Effects in the Maintenance Policies and STI Technical Specification on the Different Functions of Safety Systems of VVER-1000 NPP
F. Mohammadhasani1,*, A. Pirouzmand1, M. Karbasian2 1 Nuclear engineering department, School of Mechanical Engineering, Shiraz, Iran 2 Industrial engineering department, School of Industrial Engineering, Isfahan, Iran * [email protected]
Abstract In this paper, the effectiveness of maintenance activities on the components unavailability is quantified using Markov maintenance models and then by coupling these models and fault tree method, the risk measure is upgraded from the component level to the system level. The proposed models are applied to evaluate the unavailability of safety systems of VVER-1000 nuclear power plant (NPP). The results show that decreasing STI, reduces the unavailability in all maintenance policies. This result is inversed about increasing STI and unavailability value increases in all maintenance policies. Also, the system unavailability in Policy 3 is lower than that of Policy 2 and the system unavailability in Policy 2 is similarly lower than that of Policy 1. This is attributed to the characteristics of maintenance policies implemented at the component level. Keywords: Maintenance Policies, Markov Maintenance Models, Fault Tree Method.
181 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: Nuclear Industry(2) Paper ID: AO-09-54
Evaluation and evaluation of reliability in digital control systems and its analysis methods in control and instrumentation systems of nuclear power plants
Hadi Kasiri1,*, Manijeh sadat Badri2
1Master of Process Control Systems, Ofogh Consulting Engineers, Tehran, Iran 2Director of Control and Instrumentation, Ofogh Consulting Engineers, Tehran, Iran *[email protected]
Abstract Control and instruments systems in a nuclear power plant must meet a high level of reliability in accordance with safety and operational requirements. Due to the use of modern technology and the automation of most functions, reliability goals have become increasingly important for control systems and instrumentation. Reliability is usually achieved by using redundancy along with design based on failure detection and the ability to test items that are not continuously exploited. In the design of control systems and instrumentation, the fault-tolerant architecture must be observed in order to have an acceptable access to the power plant and to avoid reactor scrambles, as well as to increase reliability. The architecture includes dual redundancy, signal validation operations, human-machine interface, and control algorithms that are responsible for uniform transmission from low to high power. This architecture also reduces system repairs. In this paper, the most important methods and models for checking reliability are examined, and the challenges in assessing the reliability of digital systems are discussed. Finally, by explaining the terms SIL, SIF, SIS, and PFD, a suitable reference will be created for the reliability analysis of control systems and instrumentation for use by reliability engineers or those performing the reliability analysis. Keywords: Reliability, safety, diversity, failure, digital systems.
182 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Health, Safety and Environment Session: HSE4 Paper ID: MT-06-170
Pesticide Handling Health Risks and Determinants of Safety Behavior Among Crop Farmers in Ardabil County
Sahar Pirmoazzen*, Asghar Bagheri Faculty of Agricultural Sciences and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran * [email protected]
Abstract The present study explores pesticide handling health risks and determinants of safety behavior among crop farmers in Ardabil county. The statistical population is composed of all wheat and potato farmers in Ardabil County (N = 4964) of which 200 farmers were sampled based on Morgan’s sampling table. Data were collected using a questionnaire for the 2018-2019 cropping year. The content validity of the research instrument was determined by a panel of faculty members and its reliability was confirmed by the coefficient of Cronbach’s alpha, which was found to be 0.70- 0.93 for different sections. Results indicated that age, education and poisoning symptoms with positive effect were key factors explaining safety behavior that accounted for 61% of the variance. Also, age and information sourses with positive effect and farming experience with negative effect were key factors explaining PPE use that accounted for 54% of the variance. Keywords: Pesticide handling, professional hazards, safety behavior, crop farmers.
183 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Health, Safety and Environment Session: HSE4 Paper ID: MT-06-184
Reliability and availability assessment of safety instrument system on H-25 model Gas Turbine Generator
Behzad Gholami1, Mousa Jabbari Gharabagh2,*, Davood Eskandari3, Ali Baghaii4 1 Department of Occupational Health Safety Environment, Scool of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2 Department of Occupational Health Safety Environment, Scool of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran 3 Department of Occupational Health and Safety Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Iran 4 Department of Chemical Engineering, Faculty Engineering, Sharif University, Process Design Center, Safety and Damage control, Iran * [email protected]
Abstract In Power plant, Gas Turbine Generator (GTG) are considered as the main core of electricity generation and thermal energy for steam production. Therefore, their safety instrument system (SIS) can be considered as “critical safety system”, so their level of reliability and availability should be evaluated. The purpose of this study is to evaluate the reliability and availability of gas turbine safety instrument systems which is done in tow stage: The first step is to determine the required level of safety integrity level using the calibration risk graph and layer of protection analysis (LOPA) in accordance with IEC 61511standard, and the second stage of assessing the existing level of safety integrity level using the requirement and method of simplified equation in the ISA-TR84.00.02 technical report and IEC 61508 standard. The result of SIL verification shown that the level of safety integration of safety instrument system is equal to SIL2 and is more consistent with the result obtained from LOPA method. Keywords: Availability, probability failure on demand, Calibration risk graph, LOPA, SIS, SIL.
184 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Health, Safety and Environment Session: HSE4 Paper ID: MT-06-196
Evaluation of the effectiveness of safety training based on the KPABC model in a pipeline construction project
Yousef Yousefpour 1, Mousa Jabbari2,*, Mohtasham Gaffari3, Alireza Shokuhian4 1 Master of Industrial Safety Engineering, Department of Occupational Health and Work Safety Engineering, School of Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2 Associate Professor of Occupational Health Engineering, Department of Occupational Health and Work Safety Engineering, School of Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 3 Professor of Public Health, Department of Public Health, School of Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 4 Master of Industrial Engineering, Head of Safety, Health and Environment and Passive Defense, Iran Gas Engineering and Development Company, Tehran, Iran. * [email protected]
Abstract In this study, four factors of knowledge, perceptions, attitudes and behaviors in the workplace indicate the effectiveness or ineffectiveness of safety training. This study was designed as a plan before and after and was conducted with the participation of employees in the workshop, Data on safety knowledge, perceptions, attitudes and behaviors before and 6 months after training were collected by 3 questionnaires and 19 checklists. Evaluation of the effectiveness of safety training based on the KPABC model showed that safety knowledge, safety perceptions and safety attitudes have improved. Also, checklists showed behavior change in 10 cases and in 9 cases, their changes were not significant. The results showed that using the KPABC model to evaluate the effectiveness of the training provided is very useful and practical and providing training in the form of curriculum, including the TBM / TBT method, the use of educational media such as SOP and pamphlets and the use of the SWT / SWA method and the preparation of safety instructions and guides along with the use of educational matrices, good and high effectiveness to They lead. JHA preparation and incident analysis also provide good insight to target safety training. Keywords: Training effectiveness model, safety knowledge, safety perceptions, safety attitude, safety behavior and KPABC.
185 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Health, Safety and Environment Session: HSE4 Paper ID: MT-13-26
Identification of Hazards and Qualitative Risk Analysis in Gas Pressure Reducing Unit (PRU) Using FMEA and HAZOP Methods (Case Study: PRU Daughter Station in Zabol City)
Ehsan Rezaieyan1, Abolghasem Esmaeili2,*, Mottahare Nazinejad3, Mostafa Vagharimoghadam4 1 M.Sc. Student of occupational health, Department of Occupational Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran 2 Head of Industrial hygiene & Environmental protection department, Iranian Oil Pipelines and Telecommunication Company (IOPTC)- West District, HSE Department 3 B.Sc of occupational safety and health 4 M.Sc of Ergonomic *[email protected]
Abstract In this study, identifying the Hazard points of gas pressure reducing unit (PRU) of Zabol daughter station were carried out using both hazard and operability study (HAZOP) and Failure mode and effects analysis (FMEA) methods. The HAZOP technique was performed based on the document No NIGC-RAP-PR-01 with the title "Implementation method of risk assessment in provincial gas companies" which has been developed by the National Iranian Gas Company. The FMEA study was performed in accordance with two standards, including MIL-STD1629 and IEC60812. For qualitative risk analysis, the Severity and Probability scales of US MIL-STD 882E standard were used. In the HAZOP study, a total of 13 deviations were analyzed and the suggestions obtained from the HAZOP study in regulatory equipment, pipelines, and filters including 13 suggestions were presented in two categories of structural and instructions suggestions. Also, in the FMEA study, 67 failures and their causes were analyzed in 16 subsystems. Risk assessment shows that the pressure reducing unit and the air compressor have the highest and lowest risk, respectively. Finally, it was suggested to improving the process knowledge of personnel and monitor critical points of the system using these results. Keywords: Hazard Identification, Pressure Reducing Unit, HAZOP, FMEA, PRU
186 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC7 Paper ID: AO-09-59
Development of electric RLC model for reliability of cancer treatment with various RF frequencies
Jamshid Shayan, Dariush Sardari*, Farshid Babapour Mofrad
1Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran * [email protected], [email protected]
Abstract Non-ionizing radiation is an emerging tool for cancer treatment incurring less risk to the patient than gamma and X- radiation. There are two major effects in the interaction of electromagnetic fields with human body, namely thermal and non-thermal. Thermal effect is utilized in cancer treatment with hyperthermia. For the case of non-thermal effects the mechanism of interaction is not known in detail. Basically, such phenomena are studied at the cellular scale. In the present work the biological cell has been modeled with electrical RLC network and the resonance frequency was obtained with the use of QUCS software. The electric properties of cell components such as dielectric constant, conductivity and permittivity have been taken into account to develop an electric circuit model equivalent to the cell. The model that could be a complicated network was approximated and simplified to contain two resistors, three inductors, and three capacitors. The resonance frequency of a single cell has shown to happen in GHz range while accumulation of cell in the form of a tumor increase the capacitance leading to resonance frequency from few Hz to 25 kHz as proper choice for cancer treatment. The enhanced current and / voltage in cell components at resonance frequency leads to cell death during the cancer treatment procedure. The specific frequencies of liver cancer have been obtained by our model which is in good agreement with the published literature. Keywords: Cancer treatment; Cell modeling; Radiofrequency; Bioresonance; RLC circuit.
187 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC7 Paper ID: AO-09-60
Basic design of Compton scatter imaging system for industrial inspection purpose
Dariush Sardari*, Shahnaz Hashemi
Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran *[email protected], [email protected]
Abstract Application of Compton scattering phenomenon in radiographical imaging was introduced in late 1960’s. This technique was developed for medical imaging in parallel with its industrial applications. In 1980’s and 1990’s the medical applications attracted less attention due to the high dose of radiation absorbed by the patient. Compton scattering tomography (CST) has proved to be the most practical device for one-sided objects in the industry as well as some security applications. A CST consists of X-ray source, collimators, detectors and movement mechanism. In the present work, the structure of a typical CST is characterized and the role of each part in image formation is described. CST specifications such as X-ray tube voltage and current, collimator shape and material, detector size and structure are completely interrelated. The X-ray source must produce photons in the energy range that Compton scattering is dominating over photoelectric effect. Thus tube voltage between 400 – 500 kV is recommended. The higher tube current leads to lower imaging time. Various structures for the collimator are feasible. For moving collimator the weight has to be reasonable and sporadic photons are attenuated. In the present work the above mentioned specifications have been elaborated and designed from applied engineering view. Image resolution in the output of CST equipment is estimated quantitatively. Keywords: Industrial radiography, X-ray, Compton scattering, Backscatter imaging, Safety inspection.
188 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC7 Paper ID: MT-02-65
Safety analysis of total LOCA in a fuel plate research reactor
Ehsan Boustani1,*, Samad Khakshournia2, Hassan Esmaili1 1 Reactor and Nuclear Safety Research School, Nuclear Science and Technology Research Institute, Tehran, Iran 2 Physics and accelerators Research School, Nuclear Science and Technology Research Institute, Tehran, Iran * [email protected]
Abstract In the case of happening LOCA, some of produced energy in fuel transferred from meat to clad and finally to environment. The remaining energy leads to heat of fuel and clad. Reaching the fuel temperature to 660 ˚C would causes to serious damage to it. It is supposed that immediately after the LOCA, reactor would be subcritical and only the residual heat give raise to fuel heat up. This accident consequences in non-severe state would be fuel blistering and useless of it when in severe scenario is fuel meltdown. Considering the importance of safety in the research reactors, the one dimensional analysis of LOCA in a fuel plate research reactor is done. Variation of clad and fuel temperature are calculated considering the conduction, natural convection and radiation mechanisms. Operating power, history and cooling period are critical parameters in determination on accident severity. It is shown that the existence of cooling period before core uncovering for preventing meltdown is necessary. Keywords: Safety analysis, LOCA, Fuel plate research reactor, Residual heat.
189 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC7 Paper ID: AO-09-63
Calculation of elements activation in concrete of reactor building for the decommissioning of a nuclear power plant by Chebyshev method
Vahid Jamshidi*, S.H. Hosseini, J. Emami, B. Khosrowpour
OCE, Tehran, Iran [email protected]
Abstract In this paper, applying SuperMc Software with Chebyshev method and based on the requirements mentioned in IAEA-GSR Part 6, at first the neutron activation rate and activity of elements in the concrete of main reactor building (Co, Fe, Ca, Ni, C) was calculated, and then, the strategy of decommissioning the nuclear power plant after 60 years of operation and 5 years of cooling time as a suitable strategy was proposed considering radiation protection approach. Keywords: Neutron Activation, SuperMc, Chebyshev, Activity.
190 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC7 Paper ID: AO-05-84
Increase the Reliability and Physical Asset Management Using the RCA Method
Hosein Ghasemi1,*, Elnaz Shahrabi Farahani1, Mostafa Rajabi Mashhadi2
1Great Tehran Electrical Distribution Company, Tehran, Iran 2Deputy Managing Director for National Grid Dispatching, Tehran, Iran *[email protected]
Abstract Power system is a set of equipment that the failure of equipment can lead to system failure and reduced reliability. In power distribution companies, equipment failure is often encountered before the end of their useful life. This imposes high costs on companies due to the replacement or repair of defective equipment as well as power outages of end users. Root Cause Analysis (RCA) of failures is a structured approach to identify problems and take appropriate action to prevent or reduce equipment failure. Accordingly, the present study aims to identify the factors affecting equipment failure, evaluate how the RCA process operates, and provide the necessary solutions to reduce failures and increase the reliability of distribution networks. In this paper, it is tried to investigate the factors that lead to failure and deviation from reliability using the RCA method and the fault tree diagram. Keywords: Root cause analysis, Maintenance, Asset management, Distribution network, Failure.
191 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Nuclear Industry Session: NUC7 Paper ID: MT-01-217
Success and accident measurement model in power distribution networks in accordance with HSE system and how to choose the right strategy to improve reliability
Arash Vaghef Koodehi1,*, Mohammadreza Poorkhosh Saadat2
1 Gilan Electricity Distribution Company, Iran 2 Operation Supervisor, Daneshmand Consulting Engineers Co., Gilan, Iran * [email protected]
Abstract This study examines the continuous occurrence of accidents during the operation of electricity distribution networks and provides a model for measuring the success of safety management from the perspective of HSE. Due to the observance of the most important points of occupational health, safety and environmental requirements in the maintenance, repair and operation of electricity distribution networks, checklists have been converted into raw information with the least error and corresponding to measurable figures, the ability to award points. Creates successful management strategies. Finally, a more attractive strategy than the QSPM matrix is selected and proposed in terms of improving reliability. Keywords: safety management, maintenance, operation of power distribution networks, HSE system, improving reliability.
192 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Mathematical Methods in Reliability and Safety Session: MATH Paper ID: MT-09-216
Type-II Hybrid Progressive Censoring Scheme in Lomax Distribution with Reliability Parameter: Bayesian Approach
Akram Kohansal1,*, Shirin Shoaee2 1 Department of Statistics, Imam Khomeini International University, Qazvin, Iran 2 Department of Actuarial Science, Faculty of Mathematical Sciences, Shahid Beheshti University, Tehran, Iran * [email protected]
Abstract Bayesian inference of stress-strength parameter under Type-II hybrid progressive censored samples with Lomax distribution is considered, in this paper. The problem is solved in three cases. Firstly, the Bayes estimate of R is derived when X and Y have the common and unknown scale parameter and different shape parameters. In this case, due to lack of explicit form, R is approximated using two methods: Lindley’s approximation and MCMC method. Secondly, the exact Bayes estimate of R is derived when X and Y have the common and known scale parameter and different shape parameters. Thirdly, the Bayes estimate of R is derived when X and Y have the different and unknown scale parameters and different shape parameters by MCMC method. Finally, one Monte Carlo simulation study is applied to compare the performance of different methods. Keywords: Censoring scheme, Lomax distribution, Bayesian inference, Reliability parameter.
193 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Mathematical Methods in Reliability and Safety Session: MATH Paper ID: MT-09-34
Provide a model for allocation product reliability to relevant subsets in terms of dependency and feasibility
Mahdi Rahimdel Meybodi PhD Student of Industrial Engineering, Payam noor University, Tehran, Iran [email protected]
Abstract The process of assigning reliability is problematic for a variety of reasons, such as the lack of adequate information about the system and subsystems, the structural complexity of the subsystems and their components, and the difficulty of accurately determining the role of subsystems in overall system performance. According to the research conducted in the field of reliability allocation, the gap of simultaneous use of two basic factors of feasibility and dependence in the allocation of targeted reliability to the relevant subsystems is felt. Therefore, considering the importance and necessity of providing a favorable solution for the optimal allocation of reliability, in this study, according to the research conducted on the subject of reliability allocation, a suitable solution to address the shortcomings of the research is provided. In this research, after determining the weight of feasibility indicators, all subsystems are evaluated in relation to the mentioned indicators, the final result of which is the feasibility weight of all subsystems. Next, the dependence of the subsystems is calculated using the design structure matrix. Finally, according to experts, the final weight of the reliability of subsystems is calculated by a balanced combination of feasibility and dependency weights, which has a direct effect on providing the reliability assigned to the subsystems. Keywords: Reliability Allocation, Design Structure Matrix, Best-Worst Method, Feasibility, Dependency.
194 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Mathematical Methods in Reliability and Safety Session: MATH Paper ID: MT-09-46
Allocation of investment in a competitive supply chain despite the functional correlation between subsystems and the reliability approach
Amir Radfar1, Hossein Dehghan2 1 PhD Student in Industrial Management, Islamic Azad University, Roodehen Branch, Tehran, Iran. 2 Associate Professor, University Complex of Industrial Management and Engineering, Malek Ashtar University, Tehran, Iran
Abstract Today, competitive supply chain reliability is a fundamental issue that encompasses all key infrastructures, and to achieve the goal of reducing losses and damages caused by competitors' activities, it is necessary to use informed and useful strategies. In this research, modeling for supply chain investment allocation is considered for systems whose reliability structure is in series-parallel and have a functional correlation with each other. In general, in this study, first, taking into account the functional independence of the subsystems, the amount of investment of the systems is determined by default. Then, by determining the reliability relationships despite the functional correlation between the subsystems, a linear programming model is introduced to determine the correlation coefficient of the subsystems and the investment redistribution of the systems. Finally, the proposed research model is used for a numerical example and its results are analyzed. Keywords: Investment Allocation, Correlation, Competitive Supply Chain, Probability of Success, Reliability.
195 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Aerospace Session: Aerospace Paper ID: AO-01-24
Risk analysis of a discrete control system with a magnetic actuator in a specific liquid Propellant engine
Mahdi khorsandi1,*, Ali Jafargholi2, Mohsen Bakhtiarifar3 1Amirkabir University of Technology, Tehran, Iran 2Khajenasir University of Technology, Tehran, Iran 3Malekashtar University of Technology, Tehran, Iran *[email protected]
Abstract Paying attention to risk in product design is one of the key and important issues. Risks can interfere with the achievement of the results and goals of a project or even stop the achievement of the goal. Electromagnetic Discrete Control Subsystems in Liquid Propellant Engine This research is used to open and close the engine drive path. Risks are classified according to the probability of occurrence and the severity of its effect in the risk assessment matrix, and risks that are in the area of high or severe severity should be reduced by corrective measures. Significant risks of these subsystems include leakage of fluid out, clogging of moving parts, there is a difference in the operating time of solenoid valves, emptying of the fluid path, increasing the response time of solenoid valves, increasing power consumption and performance due to external magnetic field. The highest risk is related to the difference in the temporal response of the valve in subsequent operations, which is due to the retention of magnetic fields in the components in subsequent operations with a level of 3B. The response to this risk is risk reduction by using magnetic materials with lower magnetic retention, which is reduced in the reassessment to 3C, which has a moderate risk.
Keywords: Risk, Electromagnetic Subsystem, Liquid Propellant Engine, Risk Response.
196 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Aerospace Session: Aerospace Paper ID: MT-15-199
Determination of Thermal Safety Parameters in One Kind of Double-Base Propellant by Thermal Analysis and Advanced Kinetic Solution
Mohammad Reza Nayeb-Hosseini1 1 Chemical Technology Development Center, Tehran, Iran [email protected]
Abstract In this Research, thermal safety parameters for one kind of double-base propellant are determined by thermal analysis and advanced kinetic solution. In all thermal analysis methods, Differential Scanning Calorimetry (DSC) was used. Also Freidman iso-conversional method was used as kinetic solution for calculation of activation energy (E) and pre-exponential factor (A). Calculated thermal safety parameters are critical explosion temperature (Tb), Self-Accelerating Decomposition Temperature (SADT) and Time to Maximum Rate under Adiabatic Condition 0 0 0 (TMRad), Results was: Tb= 170.3 C, SADT= 167 C and TMRad (100 C)= 18.1 days. Keywords: Safety, Propellant, Kinetic, Activation energy, Thermal analysis.
197 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Aerospace Session: Aerospace Paper ID: MT-04-23
Failure Analysis of High Pressure Electro Pneumatic System in Special Propellant Engine
Mahdi Khorsandi1,*, Ali Jafargholi2, Davood Sadeghnejad3 1 Aerospace Faculty, Amirkabir University Of Technology, Tehran, Iran. 2 Aerospace Faculty, Khajenasir University Of Technology, Tehran, Iran. 3 Mechanical Engineering Faculty, Malek Ashtar University Of Technology, Tehran, Iran. * [email protected]
Abstract The purpose of process Failuar analysis is to identify potential failure modes from the lowest level (parts) to the highest level (complete product) and to investigate their causes and effects. In this paper, after carefully examining the various defects that can occur in the electropneumatic system, the evaluation table is prepared by considering the parameters of failure mode, failure cause, failure effect, failure intensity, occurrence rate and detectability. Then, according to the Risk Priority Number (RPN) obtained, the most critical failure condition is identified and a high percentage of defects are eliminated with the necessary measures. The highest critical number for system leakage failure mode is on and off. The most important cause of leakage in the on and off state is the leakage mechanism and seals used. With the defined corrective measures to change the sealing mechanism and seals, the incidence of these Failuar was greatly reduced. Keywords: Failure Analyze, FMEA, Electro Pneumatic System, Recommended Action.
198 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Reliability Session: REL3 Paper ID: AO-05-210
Transformers incremental losses locate places on the reliability of the distribution network
Ali Haghighat*, Ebrahim Khoshnood, Hamid shirzad
Gilan - Rasht Electricity Distribution Company *[email protected]
Abstract Decreased energy capacity is known as losses in various equipments of electricity distribution networks and exists in different forms. In energy transmission for various reasons such as path length and connections and type of equipment, etc., electricity is lost. But the amount of losses Electricity in distribution network transformers, in addition to wasting energy in the active state and consuming power in the unloaded state, also wastes some energy. Due to the fact that the main elements of energy conversion and transmission in distribution networks are performed by transformers. And installing a large number of them leads to unloading losses of different and different capacities. Also, due to the lack of location of most of the above distribution substations in the centers of gravity and density of lines, they face the problem of voltage drop at the end points of feeders in distribution networks. One of the solutions to reduce this voltage drop is to use voltage boost transformers. These devices are able to improve the voltage at the end of the feeder by increasing the voltage of the medium pressure feeder by a few percent and improve the load limit and also reduce the feeder losses. Accordingly, in the present article, an attempt has been made to first deal with transformer terminals and then, through the initial analysis of static equations in a distribution network, the presence of an incremental transformer on a radial medium pressure feeder is investigated and a suitable range for its installation is presented.Keywords: Distributed energy, SAIFI index, repairs, network outages. Keywords: Energy losses, incremental transformers, static stability, no-load losses and pregnancy.
199 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Reliability Session: REL3 Paper ID: MT-17-25
A Review of Triple Module Redundancy Techniques for Dependable Design of FPGA-based Systems
Anahita Hosseinkhani1, Behnam Ghavami1, Mohsen Raji2 1Departement of Engineering, Shahid Bahonar University , kerman, Iran 2Shiraz University, Shiraz, Iran [email protected] [email protected] [email protected]
Abstract One way to increase the reliability of digital circuits is to use redundancy methods. One of the most common methods of hardware redundancy is triple modular redundancy (TMR). So far, various methods have been proposed to implement TMR according to the application of FPGAs and the importance of work. In this study, our ultimate goal is to describe the techniques that have been used as yet to implement the TMR technique. Keywords: Field programmable gate array (FPGA), SEU (SEU), triple modular redundancy (TMR).
200 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Reliability Session: REL3 Paper ID: MT-17-40
Optimal Investment Strategies in a Competitive Supply Chain Considering Success Risk and Reliability Approach
Amir Radfar1,*, Hossein Dehghan2
1 PhD Student in Industrial Management, Islamic Azad University, Roodehen Branch, Tehran, Iran. 2Associate Professor, University Complex of Industrial Management and Engineering, Malek Ashtar University, Tehran, Iran *[email protected]
Abstract This research presents a scientific and logical method for determining the optimal investment strategies by considering the risk of success and the game theory approach. According to the proposed method of this research to determine the optimal investment strategies, first, based on the relevant research and opinion polls, the effective factors in determining the intensity of productivity of investment options are determined. Then, using the best-worst method, the weights of all the mentioned factors are calculated. In the next step, the final weight of productivity intensity of each investment option is determined. In the second phase of the proposed research, modeling for investment optimization is considered, in which the organization (defender) seeks to maximize the probability of success in the market, while the competitor's goal is to maximize the maximum probability of failure. Success is a defender in the market. Finally, to show how to implement and implement the proposed research model, a case study entitled Investment Optimization in the Tile Market has been selected. Also, the analysis of the sensitivity of the proposed model to the criterion of the maximum cost of the defender shows that considering this criterion has a significant effect on the optimal allocation of investments. Keywords: Strategy, Best-Worst Method, Risk, Productivity, Reliability.
201 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Reliability Session: REL3 Paper ID: MT-19-218
Multi-Objective Multi-Level Optimization in Post-Disaster Debris Logistics Network Under Uncertainty
Samira Imani1, Davood Shishebori2,* 1 Department of Industrial Engineering, Yazd, Iran 2 Department of Industrial Engineering, Yazd, Iran *[email protected]
Abstract Debris collection is one of the main activities in the crisis management recovery phase, which aims to restore the normal functioning of disaster affected areas. Reuse and recycling of debris can reduce the need for resources to areas. Therefore, in this paper, a two-objective model is presented, including maximizing operating profit from debris recycling and minimizing debris collection time from affected areas. In order to solve the problem, NSGA-II and MOHS metaheuristic algorithms are used and the results are compared with each other. The computational results show the efficiency of the proposed algorithms for solving problems in different dimensions. Keywords: Disaster, Debris recycling, Uncertainty, NSGA-II, MOHS.
202 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Reliability Session: REL3 Paper ID: MT-12-53
Representing Comprehensive Rules, Identifying the Source of Wear Elements and Defining an Oil Analysis Program for Automotive Power Generating and Transmission System
Mohammad Monsefi-Mehrabani, Amin Memari*, Javid Rezapour-Tori Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran *[email protected]
Abstract In this study, the oil analysis of power generation and transmission systems in automotive is investigated that is a preventive action to keep parts away from failure and burdening extra costs in the field of repair and maintenance engineering. Reliable approaches are transformed into codes that increase the accuracy and speed of the analyses. The sources of different contamination, additive and wear elements are determined and limit values of each element are presented based on standards. Then, a series of comprehensive rules are derived. At least one rule is represented for every 29 elements which may exist in the reports of elemental analyses. The rules are taken along with the limit values and the source of each element in the form of a GUI to be used in condition monitoring of machinery oil. Different study cases including engine, gearbox and differential lubricants are selected to verify the accuracy of written code by comparing with reference laboratory results. The comparisons show that this code poses acceptable accuracy and can be used in related industries. Moreover, it is possible to be developed and used in other industrial areas in the future. Keywords: Condition Monitoring, Oil Analysis, Elemental Analysis (EA), Wear Elements.
203 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Reliability Session: REL3 Paper ID: AO-06-150
Constructing Low-cost High Interaction Industrial Honeypot
Amir Sayahi1, Ashkan Sami2,*
1Master Student, Department of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran 2Associate Professor, Department of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran *[email protected]
Abstract Protecting the industrial control system against cyber-attacks is one of the major concerns of industries and infrastructure. Honeypot is one of the security mechanisms used to protect these systems. The ability of honeypot to connect with other industrial components is one of the important functionalities in this context which increases the attraction of the attacker and reduces the possibility of identifying it. The high cost and complexity of making a high-interaction honeypot is another problem for using this security mechanism. In previous studies, various measures have been taken in terms of cost and interaction, but little attention has been paid to the relationship between honeypot and other industrial components. In this study, using a previous method of constructing a low-cost high interaction honeypot, several industrial honeypots are implemented which are able to communicate with other industrial components and standard software. The monitoring of the communications of the main programmable logic controller and the honeypots at the network level is also considered. Keywords: Industrial Control System (ICS), Honeypot, Programmable Logic Controller (PLC).
204 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Reliability Session: REL3 Paper ID: OT-00-141
Software Dependability Improvement Techniques
Shahrokh Jalilian1, Mohammadreza Amini2, Shirin Ranjbaran3 1, 2, 3 Satellite Research Institute, Iranian Space Research Center, Tehran, Iran [email protected] Abstract Due to the important role that software plays in different systems, the dependability and reliability of systems are highly dependent on software. Therefore, because of this importance, in this article, the concepts related to software dependability and methods for its improvement are reviewed. Some methods are used to prevent faults. Some methods are used to detect and eliminate faults. There are methods for predicting and estimating software faults that are directly related to software dependability indicators. Finally, fault tolerance methods use techniques to detect the remaining faults in the software, limit them and restore the system to error-free state and failure. Due to the inevitability of fault creation during software implementation, fault tolerance techniques in critical systems play an important role in improving dependability and thus their reliability.
Keywords: Software Dependability, Software Fault Tolerance, Redundancy, Restore.
205 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-13-49
Identification and evaluation of occupational hazards by job safety analysis (J.S.A) method for fitters and welders using Pareto& matrix method in one of the Oil & Gas projects in the South west of Iran
M.Shakoorian1, H.Babakpour2,*, M.Entezam3, A.Ale'Eisa4, S.Sorouri5, A.Farmani6, M.Nabhani7 1,2,3,4,6,7Iran Ofogh Industrial Development 5Payesh System Sepehr Consultant & Servises *[email protected]
Abstract JSA with synonymous names of occupational safety analysis and safety assignment duty, etc. is one of the methods of accident prevention and risk analysis that can be implemented in the industrial file for about a year before 1930. This method is the most important management tool. It is available to eliminate hazards and reduce injuries and accidents, but if you create hazards in production process, and it is able to bring back other people and increase the productivity of the JSA results. (Maliki - Haghshenas, (2012) .Data are evaluated using methods such as the analytical method appropriate to the subject and the matrix method to categorize the probability and intensity occurrencesof the risk. In this study, using the 5 * 5 matrix and Pareto analysis method, fitter job risk evaluation was implemented in one of the projects of Oil & Gas transmission in the south west of Iran and by categorizing and prioritizing the existing risks after evaluation, it was determined how much and what risks occurred according to the volume of the project in accordance with the accidents, How much of the working conditions have been acceptable since the beginning of the project and how much is unacceptable, which after reviewing the data, the results showed that the percentage of occurrence in accidents that occur in this job in the set of unacceptable risks is zero.
Keywords: Safety - Hazard - Accident - Risk Identification - Risk Analysis and Evaluation.
206 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-14-47
Introduction of A Modified Equation to Calculate the Static Bottom-Hole Pressure of Gas Wells to Elimination Operational Risks at High H2S Gas Wells in Iran Based on Hierarchy Risk Management Method Especially on SARS-COV-2 (COVID-19) Pandemic Condition to Prevent the Possibility of any Occurred Consequences consider Health, Safety & Environmental Condition that Come from Industrial Operation by Using Lab Test & Surface Data
M.Shakoorian1,H.Babakpour2,*, M.Entezam3, A.Ale'Eisa4, S.Sorouri5, A.Farmani6, M.Nabhani7 1,2,3,4,6,7Iran Ofogh Industrial Development 5Payesh System Sepehr Consultant & Servises *[email protected]
Abstract In high H2S gas well doing industrial operations can brought us serious environmental, financial & health consequences, risk management plays an important role especially these days that world in war with SARS-COV 2 pandemic we should have more stronger boundaries to protect lives. One of the common methods is hierarchy method. In this study by using a combination of this method and design a new correlation to calculate static bottom hole pressure at gas wells we tried to have a strong risk management with final goal of a replacement for industrial operation.Inthe past, time-consuming and imprecise trial and error methods& expensive operations were used to calculate static bottom-hole pressure for gas wells. So ageneral equation was modified based on field observations to obtain more accurate predictions of static bottomhole pressure. For this purpose, a unique adjustable parameter,based on history matching of wells, has beenproposed for each reservoir. Accuracy of this equation was investigated inthree Iranian gas reservoirinformation.Good agreement was obtained among the field observations and this proposed equation.The precision of this method depends on field data and with increasing numbers of field tests, the model becomes more accurate. Keywords: Bottom-Hole Pressure, High H2S Gas Wells, Risk Management, Hierarchy Method, Modified Equation, SARS-COV 2 Pandemic.
207 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-13-32
Identify and Prioritize the Risks Involved in Designing Products with Reliability Improvement Approach
Mahdi Rahimdel Meybodi PhD Student of Industrial Engineering, Payam noor University, Tehran, Iran [email protected]
Abstract Today, identifying, assessing and analyzing of risks, is one of the most important stages in product design. Failure to properly understand and analyze the risks involved in designing products can result in various personal injury and financial damage, or stop production and production. Therefore, identifying and prioritizing design risks and proper risk management can lead to increased productivity, reduced mortality and financial losses, and better product identification. In this research, we have tried to provide a step-by-step methodology for a group assessment model to measure the risks in product design, which is the main approach to determining the risk factors that affect the reliability of products. Also, in this research, the Best- Worst Method in Fuzzy Environment (FBWM) is used to evaluate and rank the risks. Finally, the proposed research model has been used for an applied sample, and its final results have been analyzed. Keywords: Risk, Reliability, Evaluation, FBWM Method, Improvement Priority.
208 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Risk Management Session: RM Paper ID: AO-01-113
RBMDO of Thrust chamber by Adaptive Sampling method
H. R. Alimohammadi1,*, A. R. Noorollaahi2 1Aerospace Research Institute, Ministry of Science, Research and Technology, Tehran, Iran 2Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran *[email protected]
Abstract One of the challenges of Liquid-Propellant Engine (LPE) desinging is to predict the performance, weight, cost, and reliability of the thrust chamber. Therefore, the integration of reliability and optimization concepts while designing the thrust chamber is always of great importance. This integration is called Reliability-Based Design Optimization (RBDO). This paper presents attempts to RBDO of the thrust chamber by Adaptive Sampling (AS). Based on this methodology, the input variables, constraints, objective function, and their surfaces were identified. Uncertainties in the thrust chamber, such as chamber pressure and consumption ratio, are taken into account as random variables in the reliability-based optimization. Due to the high importance of specific impulse and thrust-to- weight ratio, these two functions were selected as objective functions.
Keywords: Thrust chamber; Adaptive Sampling (AS); Reliability-Based Design Optimization (RBDO).
209 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Risk Management Session: RM Paper ID: MT-13-104
Quantitative risk assessment of crude oil pipelines using Fuzzy Bow-Tie method Elham Mahmoodi1, Seyed Bagher Mortazavi*2, Omran Ahmadi 2, Hasan Asilian Mahabadi 2, Ehsan Rezaieyan1
1Master student, Department of Occupational Health and Safety Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. 2 Faculty member, Department of Occupational Health and Safety Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. *[email protected]
Abstract Most of the hydrocarbons are transported through pipelines. Although transportation through pipelines is the safer than other ways, but due to large amount of being transported fuel and passing residential areas, can cause severe accident. Quantitative risk assessment (QRA) is a systematic way to identifying and quantifiying of the contribution of the hazard and basic event in accidents occurrence. However, QRA conventional techniques suffer from drawbacks Such as not considering uncertainties. The present work is aimed at using Fuzzy logic to overcome this limitation in order to develop a risk assessment method in crude oil pipelines. Since the leak accident was the most frequent pipeline accident scenario, was selected for the top event. Hence, the basic and intermediate events, safety barriers, and the barriers failure factors were identified and finally, a Bow-tie diagram was constructed for the pipeline leak scenario. The probability of basic events was determined using the fuzzy logic and eliciting expert’s opinion. Boolean algebra was applied to calculate the probability of the top event and its consequences. A total of 36 basic and 11 intermediate events were identified and quantified in the leak scenario. The result show that improper operation had the most probability (0.024) on occurrence of accidents. Also from 9 consequences, the first identified consequence (except safe state) had the most probability (0.001052) to occur that it is low leakage.
Keywords: Quantitative risk assessment, Bow Tie, Fuzzy logic
210 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Other Topics Session: OTH2 Paper ID: OT-00-187
A review of the definitions and criteria for assessing resilience with a superior approach in the field of mining
Ali Rahim Azar1,*, S.M.M Mirabedi2, Hassan Bakhshandeh Amnieh3, Ali Nouri Qarahasanlou4 1 Master Student, School of Mining Engineering, College of Engineering, University Of Tehran, Tehran, Iran 2 Assistant Professor School of Mining Engineering, College of Engineering, University Of Tehran, Tehran, Iran 3 Associate Professor, School of Mining Engineering, College of Engineering, University Of Tehran, Tehran, Iran 4 Assistant Professor, Faculty of Technical & Engineering, Imam Khomeini International University, Qazvin, Iran *[email protected]
Abstract
Resilience is an emerging concept in risk management and accident, which has attracted much attention in various fields today. The result has been the development of several concepts in different contexts and the development of several criteria for evaluating resilience. A resilient system is a system that is resistant to disruption and catastrophic events. In case of failure or breakdown, it can recover as soon as possible and reach the pre-failure state (normal mode of operation before failure). Progress in various fields, including social, economic, political, and engineering, creates the requirement that the system in these fields must move from robustness to resilience. The mining industry is also an essential sector in the industry directly or indirectly related to the mentioned fields. Therefore, it can be said that the existence of a resilient system in the mining industry will have a favorable effect on other areas. In this paper, in addition to expressing the concept of resilience and its application in various fields, quantitative and qualitative approaches to evaluating and measuring resilience in the different systems are explained. In particular, while reviewing a significant number of studies conducted in applying these approaches in the field of mining, a brief overview in this field is provided. Keywords: Resilience, Mining, Risk, Disruption, Recovery, Robustness
211 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Poster Session Abstracts
Subject: Other Topics Session: OTH2 Paper ID: AO-12-11
Predicting the Growth of Coronavirus Infection Based on the Piecewise Crow-AMSAA Reliability Growth Model
Mohammad Nadjafi1,*, Peyman Gholami2, Samaneh Elahian3 1 Assistance professor of Aerospace Engineering, Aerospace Research Institute, Tehran, Iran 2 Ph.D. Student of Aerospace Engineering, Sharif University of Technology, Tehran, Iran 3 Aerospace Research Institute (Ministry of Science, Research and Technology), Tehran, Iran * [email protected]
Abstract In this article, reliability growth is defined as an improvement in criteria of system reliability, in a period of time due to variation in a process and its spread. A survey on reliability growth in a system show that, in a specific phase of a pandemic, the growth of the transmission and the rate of infection vary with time because initial parameters reprocess or redesign during the outbreak because of increases as a result of better cognition of disease and improvement in tools for dealing with disease. It can be supposed that in each phase of disease outbreak and spreading have a different level of growth depending on testing and stopping methods. According to this case, there are some conditions in that phenomenon can be modeled by Non-Homogeneous Poisson process (NHPP). While the traditional epidemiological models that are based on exponential distribution can’t predict disease spreading in different phase of outbreak. So, this article uses Piecewise Crow-AMSAA (NHPP) model that are based on Non-Homogeneous Poisson distribution to predict transmission of Coronavirus 19 outbreak (new cases). At first, cumulative data of infections is categorized in two or more phases then Crow-AMSAA (NHPP) model applied to them. In each phase of outbreak, models parameter calculated separately and growth parameters compared with each other in each phase, so internal and external factors defined and surveyed. Keywords: Reliability growth, Coronavirus-19, Crow-AMSAA, Non- Homogeneous Poisson process.
212 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability Workshops Program and Safety Engineering Conference
Workshops Program
قابلیت اطمینان در مهندسی سیستم )چرخه عمر و W1 دکتر مهدی کرباسیان فرایند مهندسی سیستم( کنترل نفوذپذیری غالف سوخت در زمان بهرهبرداری و W2 مهندس عظیم اسمی زاده خاموشی راکتور W3 Human Reliability Assessment (HRA) دکتر مهدی جهانگیری techniques 1- مهندس سعید کردعلیوند LPSA تحلیل ایمنی احتماالتی زنده ) ( در نیروگاههای W4 2- مهندس احسان حاتمی اتمی 3- دکتر محمد باقر غفرانی W5 Reliability assessment via deep learning دکتر محمدعلی فارسی methods روشهای برنامهریزی تعمیر و نگهداری ناوگان ماشین- W6 دکتر سید هادی حسینی آالت معدنی انواع حالتهای عدم قطعیت در مباحث مهندسی W7 دکتر داود شیشهبری قابلیت اطمینان و ایمنی آشنایی با محدودیتهای بارپذیری نیروگاههای هسته- W8 دکتر محمد باقر غفرانی ای – مطالعه موردی نیروگاه اتمی بوشهر 1- مهندس بهمن علی نژاد 2- مهندس مهدی صدقی محاسبه شاخصهای قابلیت اطمینان در شبکه برق W9 3- مهندس محمدباقر کشور از منظر کفایت و امنیت ابوالحسنی 4- دکتر عادل محسنی
213 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Workshops Program
Tuesday 28-11-99 Friday 1-12-99
Time Shiraz Hafez Saadi Eram Shiraz Hafez Saadi Eram Poster
8-9
W2 W7
9-10
W6
W1 W5
10-11
W8 W9 11-12
12-13
13-14
14-15
15-16
16-17
W3 17-18
18-19
W4
19-20
214 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Panels Program
Panels Program
اعضای نشست دانشگاه/شرکت عنوان نشست تخصصی اتاق تخصصی دکتر محمود عضو هیات علمی دانشگاه فتوحی فیروز آبا د صنعتی شریف دکتر محمد باقر عضو هیات علمی دانشگاه غفرانی صنعتی شریف دکتر محمد عضو هیات علمی دانشگاه رستگار شیراز عضو هیات علمی دانشگاه دکتر معین معینی صنعتی شریف Universite Professor perre libre de Bruxelles Henneaux چالشها و راهکارهای بهبود دکتر شهاب الدین مرکز تحقیقات ایمنی دانشگاه Panel3 قابلیت اطمینان در شبکه کامیاب شیراز انتقال برق مهندس مدیر کل دفتر راهبری و نظارت عبدالصاحب بر انتقال و توزیع برق ارجمند دکتر ناصر معاون بهره برداری شرکت اسکندری مادرتخصصی تولید برق حرارتی دکتر حبیب معاون بازار برق شرکت مدیریت قراگوزلو شبکه برق ایران مهندس محسن نماینده شورای پایایی چگنی زاده عضو هیات علمی دانشگاه دکتر محمد عطایی صنعتی شاهرود دکتر احمد رضا عضو هیات علمی دانشگاه صیادی تربیت مدرس Panel1
عضو هیات علمی دانشگاه دکتر سید امین ولیعصر رفسنجان موسوی
215 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
اعضای نشست دانشگاه/شرکت عنوان نشست تخصصی اتاق تخصصی دکتر سید هادی عضو هیات علمی دانشگاه
حسینی صنعتی اصفهان دکتر مجید مشاور عالی مجتمع مس علیزاده سرچشمه در امور ایمنی مدیر امور ایمنی،بهداشت و مهندس مصطفی محیط زیست مجتمع مس زید آبادی نژاد سرچشمه مهندس سعید کارشناس ایمنی معدن مجتمع مدیریت ریسک ماشینآالت خدادادی مس سرچشمه و ایمنی در معادن بزرگ دکتر شهاب الدین مرکز تحقیقات ایمنی دانشگاه کامیاب شیراز دکتر مجتبی عضو هیات علمی دانشگاه علوم صداقت پزشکی تهران رییس اداره اورژانس دکتر حسن واعظی بیمارستانی وزارت بهداشت دکتر مرتضی عضو هیات علمی دانشگاه علوم سعیدی پزشکی تهران دکتر شبنم نوحه عضو هیات علمی دانشگاه علوم سرا پزشکی ایران راهبردهای ارتقای قابلیت دکتر مریم داداش پزشک متخصص رادیولوژی اطمینان و ایمنی در حوزه Panel4 پور سالمت و پزشکی دکتر محسن عضو هیات علمی دانشگاه
رضاییان اکبر زاده صنعتی امیر کبیر دکتر محمدرضا عضو هیات علمی دانشگاه نعمت اللهی شیراز دکتر ایرج محمد عضو هیات علمی دانشگاه علوم فام پزشکی همدان دکتر علیرضا عضو هیات علمی دانشگاه علوم چوبینه پزشکی شیراز
216 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
اعضای نشست دانشگاه/شرکت عنوان نشست تخصصی اتاق تخصصی دکتر مهدی عضو هیات علمی دانشگاه علوم جهانگیری پزشکی شیراز دکتر شهاب الدین مرکز تحقیقات ایمنی دانشگاه کامیاب شیراز مهندس حورا مهندس پزشکی ذوالفقار دکتر علیرضا رییس شرکت ایمنی پاالیش ابراهیمی نفت شیراز دکتر رضا عضو هیات علمی دانشگاه اسالملوییان شیراز دکتر غالمرضا مدیر کل بهداشت،ایمنی و بهمن نیا محیط زیست شرکت ملی گاز ایران
دکتر احمد عضو هیات علمی دانشگاه پیروزمند شیراز راهکارهای بهبود ایمنی و Panel2 دکتر علی اصغر رییس پدافند غیرعامل و قابلیت اطمینان در صنایع حق بین مدیریت بحران شرکت ملی گاز نفت، گاز و پتروشیمی ایران رییس پروژه های سطح االرضی و مجری طرح های توسعه ای، دکتر ایمان F&G شیریان پور و ایمنی شرکت نفت فالت قاره ایران مهندس مهدی رییس بازرسی فنی شرکت ملی علیپور لیلی گاز ایران معاون میراث فرهنگی،وزارت دکتر محمد حسن میراث فرهنگی صنایع دستی و طالبیان گردشگری
217 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference Panels Program
اعضای نشست دانشگاه/شرکت عنوان نشست تخصصی اتاق تخصصی
عضو هیات علمی موسسه
امین محمود زاده آموزش عالی آپادانا
دکتر مسعود مرکز تحقیقات ایمنی دانشگاه مدیریت بحران و حفاظت رضایی منفرد شیراز پیشگیرانه در میراث
دکتر بامشاد فرهنگی مرکز تحقیقات ایمنی دانشگاه یغمایی شیراز دکتر علیرضا قلی معاون فناوری و کاربرد سازی نژاد پیربازاری پژوهشگاه دکتر میر سید رییس کمیته ملی موزه های احمد محیط ایران طباطبایی
دکتر علیرضا عضو هیات علمی دانشگاه عسکری چاوردی شیراز روش های نوین در حفاظت پیشگیرانه در میراث دکتر کورش محمد عضو هیات علمی دانشگاه فرهنگی خانی شهید بهشتی تهران
دکتر بامشاد نماینده مرکز تحقیقات ایمنی یغمایی دانشگاه شیراز
مهندس سید معاون فناوری مرکز پژوهشی بدرالدین احمدی مواد و مصالح هوشمند
218 17 – 18 February 2021 Shiraz University - Iran 6th International Reliability and Safety Engineering Conference
219 17 – 18 February 2021 Shiraz University - Iran