DOCSLIB.ORG

Natural Ventilation in Building Design: Dynamic Performance Metrics and Interactive Modeling

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Natural Ventilation in Building Design: Dynamic Performance Metrics and Interactive Modeling Natural Ventilation in Building Design: Dynamic Performance Metrics and Interactive Modeling The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Yoon, Nari. 2019. Natural Ventilation in Building Design: Dynamic Performance Metrics and Interactive Modeling. Doctoral dissertation, Harvard Graduate School of Design. Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:41021630 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#LAA Natural Ventilation in Building Design: dynamic performance metrics and interactive modeling A dissertation presented by Nari Yoon MDesS, Harvard University, 2012 B.Arch, Hongik University, 2010 to The Harvard Graduate School of Design in partial fulfillment of the requirements for the degree of Doctor of Design Harvard University Cambridge,Massachusetts January 2019 Copyright c 2019 by Nari Yoon. All rights reserved. Advisors: Author: Nari Yoon Professor Ali Malkawi Professor Holly W. Samuelson Professor Leslie K. Norford Natural Ventilation in Building Design: dynamic performance metrics and interactive modeling Abstract This study proposes a new method to evaluate natural ventilation performance in the early design phase by introducing dynamic performance metrics of natural ventilation and devel- oping an interactive tool that applies the metrics. The tool will help understand how a given design utilizes natural ventilation and which spatial variances could improve the effectiveness of natural ventilation. It also looks into important design aspects, including materials, thermal mass, aperture configurations, occupancy etc. These factors influence whether or not natural ventilation might be effective for the given design. There are four sub-topics: natural ventilation metrics, thermal mass and window con- trols, validation, and tool implementation. These sub-topics, in this order, structure the thesis. First, it introduces dynamic metrics that gauge the degree of cooling power that is achieved through natural ventilation. The metrics will be first developed under steady-state conditions, and be demonstrated in a feasibility study using an interactive design platform. Second, once metrics for steady-state are established, the effect of thermal mass and window controls are considered. Thermal mass interacts with its environment through time in a dynamic way which must be explored to refine the natural ventilation metrics. Therefore, this part will analyze the temperature change through time, examine the impact of different window operations, and further suggest efficient ventilation routines. Third, the process of calculating the dynamic metrics is validated with experiments. This ensures that the proposed method works as intended. Lastly, an interactive design procedure that utilizes the dynamic performance metrics is demonstrated in the 3D modeling environment. This study contributes to early-staged building design in three ways. First, quick simu- lation time and interactivity will provide users with rapid feedback on different design possi- bilities. Second, natural ventilation performance is estimated for a customized building design, albeit with some limitations, as opposed to a general box model. The tool may yield different results for buildings with different sizes, features, and construction conditions. By yielding metrics for a specific design, it will help users to alter the design to enhance performance. Third, the tool helps designers understand that the thermal environment is influenced by im- portant factors including window operation, thermal mass, and internal heat gains. Users will be able to learn the sensitivity of the thermal environment to various construction materials and thermal masses, which is pedagogically important. ii Acknowledgements Thank you, Prof. Malkawi, Prof. Samuelson, and Prof. Norford, for sharing your invaluable insights, guidance, and care. I am forever indebted to you. Thank you, Christoph Reinhart, Joyce Rosenthal, Alejandra Menchaca, and Yuya Ando, for showing confidence in me and supporting my doctoral journey. Thank you, my colleagues at the GSD and the CGBC, for inspiring me with your talents and encouraging me with your sympathy. Special thanks to Bin for your kindness and support that goes beyond colleagueship. Thank you, my friends in Korea, USA and anywhere on the globe, for laughing, grumbling, and singing with me. A special shout-out to Jung Min and Jung Hyun for our countless coffee breaks. Thank you, Min Ju, for taking the seat next to me on this roller coaster of life. I am thrilled for more to come. \mÐ Ä신 가q들, 감¬X고 ¬랑i니다. Contents Abstract i Acknowledgements iii List of Tables xi List of Figures xiii 1 Introduction 1 1.1 Research statement....................................1 1.2 Research objectives....................................2 1.3 Research methodology..................................4 1.3.1 Natural ventilation performance metrics...................4 1.3.2 Natural ventilation performance assisted by additional passive design strategies......................................4 1.3.3 Software selection for tool implementation..................5 1.3.4 Validation with the HouseZero project....................6 1.4 Structure of dissertation.................................6 2 Literature Review7 2.1 Natural ventilation in Architecture...........................7 2.1.1 Natural ventilation and energy savings....................7 2.1.2 Natural ventilation and thermal mass.....................9 2.1.3 Controls for natural ventilation and energy savings............. 11 2.2 Evaluation of natural ventilation............................ 12 2.2.1 Common metrics used in natural ventilation evaluation.......... 12 Contents 2.2.2 Customized indices used in natural ventilation evaluation......... 14 2.3 Natural ventilation modeling in design processes.................. 18 2.3.1 Site evaluation and conceptual design phase................. 19 2.3.2 Design development phase........................... 23 3 Dynamic metrics for interactive modeling 29 3.1 Metrics of natural ventilation performance...................... 30 3.1.1 Static and dynamic metrics of natural ventilation.............. 30 3.1.2 Terminology.................................... 31 3.2 Dynamic performance metrics for natural ventilation................ 35 3.2.1 Design natural ventilation cooling effectiveness (dNVCE)......... 35 3.2.2 Climate Potential Utilization Rate (CPUR).................. 39 3.2.3 Understanding dNVCE and CPUR together................. 39 3.2.4 Framework for dNVCE and CPUR....................... 40 3.3 Feasibility study for interactive modeling....................... 42 3.3.1 Study description................................. 42 3.3.2 Geometry..................................... 42 3.3.3 Climate natural ventilation effectiveness (cNVCE).............. 43 3.3.4 Pressure coefficient (cp) and available cooling power............ 44 3.3.5 Ideal cooling capacity.............................. 45 3.3.6 Initial results and testing more design alternatives............. 46 3.3.7 Results....................................... 47 3.3.8 Discussions.................................... 47 4 Thermal mass, dynamic window controls, and natural ventilation 51 4.1 Multi-zone thermal mass solution........................... 52 4.1.1 Single-zone model................................ 52 4.1.2 Multi-zone model: two-zone problem..................... 56 4.1.3 Multi-zone: more than two zones....................... 60 4.1.4 Implications of the multi-zone solution.................... 62 4.2 Model verification: with windows closed....................... 63 4.2.1 Objective of verification............................. 63 vi Contents 4.2.2 Verification methods............................... 64 4.2.3 Single-zone model setting: with windows closed.............. 65 4.2.4 Single-zone model verification results: with windows closed....... 66 4.2.5 Multi-zone model setting: with windows closed............... 67 4.2.6 Multi-zone model verification results: with windows closed........ 69 4.3 Model verification: with windows open........................ 70 4.3.1 Model assumptions with natural ventilation................. 70 4.3.2 Model settings for natural ventilation..................... 70 4.3.3 Single-zone verification results: with windows open............ 72 4.3.4 Multi-zone verification results: with windows open............. 74 4.3.5 Conclusion from the verification........................ 75 4.4 Thermal mass and dynamic window operation.................... 75 4.5 Calculation of dNVCE in a transient state....................... 77 4.5.1 Available cooling power (qavail) in a transient state............. 77 4.5.2 Ideal cooling power (qideal) in a transient state................ 78 4.5.3 Design natural ventilation cooling effectiveness (dNVCE) in a transient state........................................ 78 4.6 Discussion......................................... 80 4.6.1 Impact of thermal mass and window controls on dNVCE......... 80 4.6.2 Impact of thermal mass and window controls on CPUR.......... 81 4.7 Limitations......................................... 81 4.7.1 Geometry..................................... 81 4.7.2 Zoning for natural ventilation......................... 82 4.7.3 Thickness of thermal mass..........................
Load more

Recommended publications
  • Guide to Understanding Condensation
    Guide to Understanding Condensation The complete Andersen® Owner-To-Owner™ limited warranty is available at: www.andersenwindows.com. “Andersen” is a registered trademark of Andersen Corporation. All other marks where denoted are marks of Andersen Corporation. © 2007 Andersen Corporation. All rights reserved. 7/07 INTRODUCTION 2 The moisture that suddenly appears in cold weather on the interior We have created this brochure to answer questions you may have or exterior of window and patio door glass can block the view, drip about condensation, indoor humidity and exterior condensation. on the floor or freeze on the glass. It can be an annoying problem. We’ll start with the basics and offer solutions and alternatives While it may seem natural to blame the windows or doors, interior along the way. condensation is really an indication of excess humidity in the home. Exterior condensation, on the other hand, is a form of dew — the Should you run into problems or situations not covered in the glass simply provides a surface on which the moisture can condense. following pages, please contact your Andersen retailer. The important thing to realize is that if excessive humidity is Visit the Andersen website: www.andersenwindows.com causing window condensation, it may also be causing problems elsewhere in your home. Here are some other signs of excess The Andersen customer service toll-free number: 1-888-888-7020. humidity: • A “damp feeling” in the home. • Staining or discoloration of interior surfaces. • Mold or mildew on surfaces or a “musty smell.” • Warped wooden surfaces. • Cracking, peeling or blistering interior or exterior paint.
    [Show full text]
  • A Comprehensive Review of Thermal Energy Storage
    sustainability Review A Comprehensive Review of Thermal Energy Storage Ioan Sarbu * ID and Calin Sebarchievici Department of Building Services Engineering, Polytechnic University of Timisoara, Piata Victoriei, No. 2A, 300006 Timisoara, Romania; [email protected] * Correspondence: [email protected]; Tel.: +40-256-403-991; Fax: +40-256-403-987 Received: 7 December 2017; Accepted: 10 January 2018; Published: 14 January 2018 Abstract: Thermal energy storage (TES) is a technology that stocks thermal energy by heating or cooling a storage medium so that the stored energy can be used at a later time for heating and cooling applications and power generation. TES systems are used particularly in buildings and in industrial processes. This paper is focused on TES technologies that provide a way of valorizing solar heat and reducing the energy demand of buildings. The principles of several energy storage methods and calculation of storage capacities are described. Sensible heat storage technologies, including water tank, underground, and packed-bed storage methods, are briefly reviewed. Additionally, latent-heat storage systems associated with phase-change materials for use in solar heating/cooling of buildings, solar water heating, heat-pump systems, and concentrating solar power plants as well as thermo-chemical storage are discussed. Finally, cool thermal energy storage is also briefly reviewed and outstanding information on the performance and costs of TES systems are included. Keywords: storage system; phase-change materials; chemical storage; cold storage; performance 1. Introduction Recent projections predict that the primary energy consumption will rise by 48% in 2040 [1]. On the other hand, the depletion of fossil resources in addition to their negative impact on the environment has accelerated the shift toward sustainable energy sources.
    [Show full text]
  • Initial Start-Up When Starting up the Cooler Refrigeration System for the First Time, the Following Events Occur
    SEQUENCE OF OPERATION COOLERS AND FREEZERS COOLERS All standard units are equipped with an adjustable thermostat located on the lower right hand side of the evaporator coil, on the inside of the walk-in. All units are set at the factory to the temperature requested by the customer. Minor adjustments in operating temperature may be made to suit your needs by a qualified refrigeration technician. Polar King recommends that you do not set the temperature colder than required, as this will cause unnecessary power consumption. Recommended temperature for a cooler ranges from +34° to +37° F, unless specified otherwise for special applications. Refrigeration - Initial Start-Up When starting up the cooler refrigeration system for the first time, the following events occur. The operating sequence is as follows: (1) Thermostat calls for refrigerant. (2) Liquid line solenoid valve opens, allowing refrigerant to flow. (3) Pressure control makes the control circuit and the condensing unit operates. (4) When the room thermostat is satisfied, the liquid line solenoid will close, and the compressor will pump down and turn off. (Fan on unit cooler will continue to run.) These units are designed for application conditions 33°F and above. CAUTION: DO NOT SET A COOLER BELOW 32°F OR DAMAGE MAY OCCUR. Defrost Defrost is accomplished during refrigeration off cycle. Four defrost cycles per day are programmed at the factory (4 a.m., 10 a.m., 4 p.m., and 10:00 p.m.). It may be necessary to change the defrost cycle times to fit your work schedule. The interior temperature may rise slightly during the defrost cycle.
    [Show full text]
  • Disparities in Ammonia, Temperature, Humidity, and Airborne Particulate Matter Between the Micro-And Macroenvironments of Mice in Individually Ventilated Caging
    Journal of the American Association for Laboratory Animal Science Vol 49, No 2 Copyright 2010 March 2010 by the American Association for Laboratory Animal Science Pages 177–183 Disparities in Ammonia, Temperature, Humidity, and Airborne Particulate Matter between the Micro-and Macroenvironments of Mice in Individually Ventilated Caging Matthew D Rosenbaum,1 Susan VandeWoude,2 John Volckens,3 and Thomas E Johnson3,* Animal room environmental parameters typically are monitored with the assumption that the environment within the cage closely mirrors the room environment. This study evaluated that premise by examining macro- (room) and microenvi- ronmental (cage) parameters in individually ventilated cages housing mice with variable amounts of bedding over a period of 17 d without cage changes. Intracage ammonia levels remained within recommended human guidelines but were higher than room levels, confirming that microisolation caging is efficient at preventing ammonia generated from animal waste from escaping into the room. Humidity and temperature within cages were consistently higher than room levels. Particles in the room predominantly consisted of fine particles (diameter less than 2.5 µm), presumably from the ambient atmosphere; some of these particles were found in the cage microenvironment. In addition, mouse activity within cages produced larger particles, and these particles contributed to substantially higher aerosol mass concentrations within the cage. These findings demonstrate that, although cage and room environmental parameters differ, knowledge of room environmental conditions can be used to predict certain conditions within the cage. This association is relevant in that typical animal care standard operat- ing procedures rely on room measurements, not intracage measurements, which arguably are more important for assessing animal welfare.
    [Show full text]
  • At the Request of the District, Environmental Control Systems, Inc, the District's Environmental Risk Engineers, Visited Charl
    Environmental Control Systems, Inc. Indoor Air Quality Investigation Charles F. Patton Middle School Executive Summary At the request of the district, Environmental Control Systems, Inc, the district’s environmental risk engineers, visited Charles F. Patton Middle School to visually assess surfaces and test the air quality in various regions of the school building. This process was completed on Wednesday, November 21 during the regular school day when school was in session. Upon their professional inspection and review, Environmental Control Systems concluded that there is no evidence of mold at Charles F. Patton Middle School. Below is a summary of the report provided by Environmental Control Systems, Inc. You may view the complete report by clicking here. Indoor Air Quality Investigation Report Summary - November 21, 2018 1. Currently, there are no EPA, CDC or OSHA regulations or standards for airborne mold contaminants, therefore, there are no quantitative health-based guidelines, values, or thresholds for acceptable, tolerable, or normal concentrations for airborne fungi spores. 2. Generally speaking, indoor mold types should be similar to, and airborne concentrations should be no greater than, those found outdoors and in non-complaint areas. 3. According to the EPA, there is no practical way to eliminate all mold and mold spores in an indoor environment. Spores can be found almost anywhere and can grow on virtually any substance, providing moisture is present. 4. Mold may begin growing indoors when mold spores land on wet surfaces. There are many types of mold, but none of them will grow without water. At the time of this investigation, there was no condensation on any horizontal or vertical surfaces as all surfaces were equal to or higher than room temperature.
    [Show full text]
  • The Empirical Analysis Model on Identifying Sick Building Syndrome in Hot Humid Tropical Buildings
    Civil Engineering and Architecture 9(1): 52-73, 2021 http://www.hrpub.org DOI: 10.13189/cea.2021.090105 The Empirical Analysis Model on Identifying Sick Building Syndrome in Hot Humid Tropical Buildings Nurrahmi Kartikawati1, Erni Setyowati2,*, Djoko Indrosaptono2 1Doctoral Program of Architecture and Urbanism, Engineering Faculty of Diponegoro University, Semarang, 50275, Indonesia 2Department of Architecture, Engineering Faculty of Diponegoro University, Semarang, 50275, Indonesia Received November 9, 2020; Revised December 22, 2020; Accepted January 20, 2021 Cite This Paper in the following Citation Styles (a): [1] Nurrahmi Kartikawati, Erni Setyowati, Djoko Indrosaptono , "The Empirical Analysis Model on Identifying Sick Building Syndrome in Hot Humid Tropical Buildings," Civil Engineering and Architecture, Vol. 9, No. 1, pp. 52 - 73, 2021. DOI: 10.13189/cea.2021.090105. (b): Nurrahmi Kartikawati, Erni Setyowati, Djoko Indrosaptono (2021). The Empirical Analysis Model on Identifying Sick Building Syndrome in Hot Humid Tropical Buildings. Civil Engineering and Architecture, 9(1), 52 - 73. DOI: 10.13189/cea.2021.090105. Copyright©2021 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License Abstract A tropical hot humid climate provides high 1. Introduction humidity that influences the occupant’s comfort. This study highlights a comparison of physical measurements One of the remarkable things in occupancy is the indoor and perceptions related to thermal comfort, indoor air comfort aspect and the occupant’s health. The comfort quality, and sick building syndrome (SBS) in tropical and health of the residents are inseparable from thermal humid climate buildings.
    [Show full text]
  • Sick Building Syndrome by WHO.Pdf
    Sick building syndrome By: World Health Organization Regional Office for Europe Summary Sick Building Syndrome (SBS) describes a medical condition where people in a building suffer from symptoms of illness or feel unwell for no apparent reason. The symptoms tend to increase in severity with the time people spend in the building, and improve over time or even disappear when people are away from the building. Sick Building Syndrome results in substantial disruption of people's work performance and personal relationships, and considerable loss of productivity. Sick Building Syndrome is wide spread and may occur in offices, apartment houses, nurseries and schools, resulting in substantial costs to the community. Even though the cause effect relations are unclear it is possible to remedy buildings with SBS problems, and for new buildings the chances of avoiding SBS problems are also good. Local Government actions can be both for implementing curative measures and for taking preventive actions. These measures and actions range from simple to radical. In recent years it has become apparent that occupants of buildings suffer a number of relatively minor illnesses where there is no apparent cause, yet it has been established that these are caused in some way by the building. The symptoms are varying degrees of irritation of the eyes, nose, throat or skin plus general symptoms such as lethargy and headaches. Because these illnesses may happen in the building or elsewhere, it was initially difficult to show that they could be caused by the building. While these symptoms may seem trivial at first sight, together they are a substantial problem.
    [Show full text]
  • Enthalpy of Neutralization
    Enthalpy of Neutralization Introduction Energy changes always accompany chemical reactions. If energy, in the form of heat, is liberated the reaction is exothermic and if energy is absorbed the reaction is endothermic. Thermochemistry is concerned with the measurement of the amount of heat evolved or absorbed. The heat (or enthalpy) of neutralization (∆H) is the heat evolved when an acid and a base react to form a salt plus water. Eq. 1 HNO2(aq) + NAOH(aq) → NaNO2(aq) + H2O(l) + Q Q in the above equation is -∆H and is expressed in kJ/mol of water. Neutralization reactions are generally exothermic and thus ∆H is negative. Heat measurements are performed by carrying out the reaction in a special container called a calorimeter. The heat (Q) given off by the neutralization reaction is absorbed by the reaction solution and the calorimeter. Both the solution and calorimeter increase in temperature due to the absorbed heat and this increase can be measured with a thermometer. ∆H is negative if heat is evolved and positive if heat is absorbed. Eq. 2 -∆Hneutralization = QSolution + QCalorimeter To evaluate the calorimeter constant (also known as its heat capacity) in J/oC, one adds a known mass of hot water to a known mass of cold water which is in the calorimeter. Heat (Q) is lost by the hot water and is absorbed by the cold water and the calorimeter. Thus the heat absorbed by the calorimeter is the heat lost by the hot water minus the heat gained by the cold water. QHot water = QCold water + QCalorimeter Eq.
    [Show full text]
  • Lab #4: Temperature and Thermal Equilibrium
    Temperature and Thermal Equilibrium 1 Physics 123, Fall 2012 Name Lab #4: Temperature and Thermal Equilibrium Temperature and Temperature Scales Temperature is one of the most familiar and fundamental thermodynamic quantities. We have an intuitive feel for temperature, e.g. hot versus cold objects. However, a precise measurement depends on the establishment of a relative temperature scale, based on the change in some physical property of a material as it is heated or cooled over some temperature range. Thus a thermometer may be based on the length of a metal rod, the height of a column of mercury, or the volume of a gas under pressure. In addition, the electrical current carried by certain materials can change with temperature, and thus it is possible to use electronic devices to measure temperature. The familiar Fahrenheit and Celsius scales are just two of many temperature scales set up by early investi- gators of heat and thermodynamics. Both of these scales were set up by taking two fixed points of reliable, easily reproducible temperatures. The Celsius scale was originally based on the freezing point and boiling points of water, 0 ◦C and 100 ◦C, respectively. You will measure temperatures in terms of the Celsius scale. Thermometers In these exercises, you will experiment with two types of thermometers, investigating how the tempera- ture of a substance is affected when it interacts with an environment or another substance at a different temperature. You will use both the familiar glass bulb thermometer and a thermistor. In a glass bulb thermometer, the liquid (alcohol) expands when heated and contracts when cooled, so that the length of the column of liquid can be used to measure changes in temperature.
    [Show full text]
  • Thermodynamic Temperature
    Thermodynamic temperature Thermodynamic temperature is the absolute measure 1 Overview of temperature and is one of the principal parameters of thermodynamics. Temperature is a measure of the random submicroscopic Thermodynamic temperature is defined by the third law motions and vibrations of the particle constituents of of thermodynamics in which the theoretically lowest tem- matter. These motions comprise the internal energy of perature is the null or zero point. At this point, absolute a substance. More specifically, the thermodynamic tem- zero, the particle constituents of matter have minimal perature of any bulk quantity of matter is the measure motion and can become no colder.[1][2] In the quantum- of the average kinetic energy per classical (i.e., non- mechanical description, matter at absolute zero is in its quantum) degree of freedom of its constituent particles. ground state, which is its state of lowest energy. Thermo- “Translational motions” are almost always in the classical dynamic temperature is often also called absolute tem- regime. Translational motions are ordinary, whole-body perature, for two reasons: one, proposed by Kelvin, that movements in three-dimensional space in which particles it does not depend on the properties of a particular mate- move about and exchange energy in collisions. Figure 1 rial; two that it refers to an absolute zero according to the below shows translational motion in gases; Figure 4 be- properties of the ideal gas. low shows translational motion in solids. Thermodynamic temperature’s null point, absolute zero, is the temperature The International System of Units specifies a particular at which the particle constituents of matter are as close as scale for thermodynamic temperature.
    [Show full text]
  • Impacts of Room Temperature on the Performance of a Portable Propane Air Conditioner Nomenclature
    Impacts of room temperature on the performance of a portable propane air conditioner Ahmad Sharifian1, Jeri Tangalajuk Siang2 1,2Computational Engineering and Science Research Centre (CESRC), School of Mechanical and Electrical Engineering, Faculty of Health, Engineering and Science, University of Southern Queensland, Toowoomba, Australia. Email of corresponding author: [email protected] Abstract The performance of a portable propane air conditioner system, in which the temperatures of the air passing over the condenser and evaporator are equal, has been experimentally investigated under different room temperatures and refrigerant charge levels. The research has been carried out in a range of room temperatures from 20°C to 35°C and in undercharge, standard charge and overcharge conditions. The results show that, at higher room temperatures, the refrigerant temperature in all parts of the system, the density of the refrigerant at the inlet and outlet of the condenser, mass of the refrigerant in the compressor, the mass flow rate of the refrigerant and the cooling capacity of the system in either the undercharge or full charge condition, the specific cooling capacity of the undercharge system, the useful work of the compressor, and the maximum pressure of the refrigerant increase. The increase in room temperature decreases the density of the refrigerant at the inlet and outlet of the capillary tube, the mass of the refrigerant in the capillary tube, the refrigerant subcooling at the inlet of the capillary tube, the maximum velocity of the refrigerant and the coefficient of performance. In addition, the increase in room temperature at overcharge condition causes an increase in the mass flow rate, cooling capacity and specific cooling capacity to a maximum value followed by their decrease.
    [Show full text]
  • Controlling Operating Room Temperature & Humidity
    WISCONSIN HEALTHCARE ENGINEERING ASSOCIATION (WHEA) Operating Room Temperature and Humidity Control © Tom Rossiter Photography Webinar: July 12, 2018 AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 1 Presenter Introduction KEVIN OTTE, PE ABHISHEK AJANSONDKAR Mechanical Engineer Mechanical Engineer 608-236-1218 608-236-1236 [email protected] [email protected] AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 2 Agenda Why do we care about OR temperature and humidity control? How do we meet OR temperature and humidity requirements? How do we control OR temperature and humidity? How can we save energy and operational costs while maintaining OR temperature and humidity? AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 3 Why do we care about OR temperature and humidity control? AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 4 Why do we care about OR temperature and humidity control? • Code Requirements • Surgical Procedure Requirements • Equipment Requirements • Infection Control • Surgeon Comfort AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 5 Why do we care about OR temperature and humidity control? • Code Requirements • Surgical Procedure Requirements • Equipment Requirements • Infection Control • Surgeon Comfort AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 6 Why do we care about OR temperature and humidity control? • Code Requirements • Surgical Procedure Requirements • Equipment Requirements • Infection Control • Surgeon Comfort Image Source: Facilities Guidelines Institute (FGI) AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 7 Why do we care about OR temperature and humidity control? • Code Requirements • Surgical Procedure Requirements • Equipment Requirements • Infection Control • Surgeon Comfort Image Source: ASHRAE AFFILIATED ENGINEERS, INC. July 12, 2018 | Slide 8 Why do we care about OR temperature and humidity control? • Code ASHRAE 170-2013 Space Design Parameters Table 7.1: Requirements • Surgical Procedure Requirements • Equipment Requirements • Infection Control • Surgeon Comfort Image Source: ASHRAE 170-2013 AFFILIATED ENGINEERS, INC.
    [Show full text]