Conceptual and Preliminary Design of a Long Endurance Electric UAV
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Can Brazil Replicate China's Successful Solar Industry?
Can Brazil replicate China’s successful solar industry? He Nuoshu and Fabio Couto Jr. A solar power station in Xuzhou, Jiangsu province, southeast China (Image: Zhiyong Fu / Greenpeace) China’s booming solar market offers many lessons for other emerging economies This report examines the shared experiences of China and Brazil in both nations’ efforts to develop domestic solar industries. The report, which synthesises two articles and includes policy recommendations borrowed from the Chinese experience, first appeared on Diálogo Chino and is published in partnership with Instituto Clima e Sociedade (ICS). History China’s solar power sector started to boom in recent years – not only in manufacturing, but also in domestic installations – thanks to strong government backing and a favourable policy environment. The rate of growth has stunned the world, as has the falling cost, beating expectations even of industry insiders. By the end of 2015, China had 43 gigawatts of installed solar power, and had overtaken Germany, another country that saw strong industrial policy supporting solar power, as the global leader. Last year, eight of the top-10 solar PV module manufacturers were Chinese. But the history is a longer one. The Chinese government has supported research and development (R&D) on solar PV since the 1950s, mainly for its uses in space. A PV module manufacturing industry developed during the 1990s. It remained small and of variable quality but became a crucial part of providing energy access to remote communities. The Brightness Programme, launched in 1996, was the first national policy to bring electricity access to off-grid areas of western China using renewable energy. -
A Numerical Approach for Implementing Air Intakes in a Canard Type Aircraft for Engine Cooling Purposes
https://doi.org/10.1590/jatm.v13.1192 ORIGINAL PAPER A Numerical Approach for Implementing Air Intakes in a Canard Type Aircraft for Engine Cooling Purposes Odenir de Almeida1,* , Pedro Correa Souza1 , Erick Cunha2 1.Universidade Federal de Uberlândia – Faculdade de Engenharia Mecânica – Centro de Pesquisa em Aerodinâmica Experimental – Uberlândia/MG – Brazil. 2.Fábrica Brasileira de Aeronaves – Uberlândia/MG – Brazil *Corresponding author: [email protected] ABSTRACT This work presents selected results of an unconventional aircraft development campaign. Engine installation at the rear part of the fuselage imposed design constraints for air intakes that should be used for cooling purposes. Trial and error flight tests increased the development cost and time which required a more sophisticated analysis through computational fluid dynamics (CFD) techniques and robust semiempirical approach. The carried-out investigation of the air intakes started with an empirical approach from guidelines for designing NACA and scoops. Numerical studies via computational fluid dynamics were performed with the air intakes installed in the aircraft fuselage. An analysis based on the air intake efficiency, drag and the effect of angle of attack are detailed in this work. Different air intakes designs, such as scoops of different shapes, were evaluated seeking for improved air intake efficiency and low drag while providing enough air for cooling the engine compartment. The results showed that the numerical approach used herein decreased the development cost and time of the aircraft, providing a reasonable low-cost approach and leading to a design selection more easily. Based on the current approach the canard airplane geometry was changed to account for the new selected air intake for engine cooling purposes. -
Water Scenarios Modelling for Renewable Energy Development in Southern Morocco
ISSN 1848-9257 Journal of Sustainable Development Journal of Sustainable Development of Energy, Water of Energy, Water and Environment Systems and Environment Systems http://www.sdewes.org/jsdewes http://www.s!ewes or"/js!ewes Year 2021, Volume 9, Issue 1, 1080335 Water Scenarios Modelling for Renewable Energy Development in Southern Morocco Sibel R. Ersoy*1, Julia Terrapon-Pfaff 2, Lars Ribbe3, Ahmed Alami Merrouni4 1Division Future Energy and Industry Systems, Wuppertal Institute for Climate, Environment and Energy, Döppersberg 19, 42103 Wuppertal, Germany e-mail: [email protected] 2Division Future Energy and Industry Systems, Wuppertal Institute for Climate, Environment and Energy, Döppersberg 19, 42103 Wuppertal, Germany e-mail: [email protected] 3Institute for Technology and Resources Management, Technical University of Cologne, Betzdorferstraße 2, 50679 Köln, Germany e-mail: [email protected] 4Materials Science, New Energies & Applications Research Group, Department of Physics, University Mohammed First, Mohammed V Avenue, P.O. Box 524, 6000 Oujda, Morocco Institut de Recherche en Energie Solaire et Energies Nouvelles – IRESEN, Green Energy Park, Km 2 Route Régionale R206, Benguerir, Morocco e-mail: [email protected] Cite as: Ersoy, S. R., Terrapon-Pfaff, J., Ribbe, L., Alami Merrouni, A., Water Scenarios Modelling for Renewable Energy Development in Southern Morocco, J. sustain. dev. energy water environ. syst., 9(1), 1080335, 2021, DOI: https://doi.org/10.13044/j.sdewes.d8.0335 ABSTRACT Water and energy are two pivotal areas for future sustainable development, with complex linkages existing between the two sectors. These linkages require special attention in the context of the energy transition. -
PDF-Download
Michaël Tanchum FOKUS | 8/2020 Morocco‘s Africa-to-Europe Commercial Corridor: Gatekeeper of an emerging trans-regional strategic architecture Morocco’s West-Africa-to-Western-Europe framework of this emerging trans-regional emerging West-Africa-to-Western-Europe commercial transportation corridor is commercial architecture for years to come. commercial corridor. The November 15, redefining the geopolitical parameters of 2018 inauguration of the first segment of the global scramble for Africa and, with Morocco’s Construction of an Africa-to- the landmark high-speed line was presi- it, the strategic architecture of the Medi- Europe Corridor ded over by King Mohammed VI himself, in terranean basin. By massively expanding conjunction with French President Emma- the port capacity on its Mediterranean Situated in the northwest corner of Africa, nuel Macron.2 Seven years in construction, coast, Morocco has surpassed Spain and is fronting the Atlantic Ocean on its western the $2.3 billion line was built as a joint poised to become the dominant maritime coast and the Mediterranean Sea on its venture between France’s national railway hub in the western Mediterranean. Having northern coast, the Kingdom of Morocco company Société Nationale des Chemins constructed Africa’s first high-speed rail line, historically has been a geographical pivot de Fer Français (SNCF) and its Moroccan Morocco’s extension of the line to the Mau- for interchange between Europe, Africa, state counterpart Office National des Che- ritanian border, will transform Morocco into and the Middle East. In recent years, the mins de Fer (ONCF). Outfitted with Avelia the preeminent connectivity node in the semi-constitutional monarchy has adroitly Euroduplex high-speed trains produced nexus of commercial routes that connect combined the soft power resources of by French manufacturer Alstom, the initial West Africa to Europe and the Middle East. -
Large-Scale Solar Photovoltaic Impact Assessment in the Context of the Brazilian Environmental and Energy Planning
LARGE-SCALE SOLAR PHOTOVOLTAIC IMPACT ASSESSMENT IN THE CONTEXT OF THE BRAZILIAN ENVIRONMENTAL AND ENERGY PLANNING Gardenio Diogo Pimentel da Silva Dissertação de Mestrado apresentada ao Programa de Pós-graduação em Planejamento Energético, COPPE, da Universidade Federal do Rio de Janeiro, como parte dos requisitos necessários à obtenção do título de Mestre em Planejamento Energético. Orientador(es): David Alves Castelo Branco Alessandra Magrini Rio de Janeiro Feverreiro de 2019 LARGE-SCALE SOLAR PHOTOVOLTAIC IMPACT ASSESSMENT IN THE CONTEXT OF THE BRAZILIAN ENVIRONMENTAL AND ENERGY PLANNING Gardenio Diogo Pimentel da Silva DISSERTAÇÃO SUBMETIDA AO CORPO DOCENTE DO INSTITUTO ALBERTO LUIZ COIMBRA DE PÓS-GRADUAÇÃO E PESQUISA DE ENGENHARIA (COPPE) DA UNIVERSIDADE FEDERAL DO RIO DE JANEIRO COMO PARTE DOS REQUISITOS NECESSÁRIOS PARA A OBTENÇÃO DO GRAU DE MESTRE EM CIÊNCIAS EM PLANEJAMENTO ENERGÉTICO. Examinada por: ________________________________________________ Prof. Dr. David Alves Castelo Branco, DSc. ________________________________________________ Prof. Dr. Alessandra Magrini, DSc. ________________________________________________ Prof. Dr. Betina Susanne Hoffmann, DSc. ________________________________________________ Prof. Dr. Ricardo Abranches Felix Cardoso Júnior, DSc. RIO DE JANEIRO, RJ - BRASIL FEVERREIRO DE 2019 Da Silva, Gardenio Diogo Pimentel Large-scale solar photovoltaic impact assessment in the context of the Brazilian environmental and energy planning/ Gardenio Diogo Pimentel da Silva. XIV, 89 p.: il.; 29,7 cm. Orientador: David Alves Castelo Branco e Alessandra Magrini Dissertação (mestrado) – UFRJ/ COPPE/ Programa de Planejamento Energético, 2019. Referências Bibliográficas: p. 92-96. 1. 1. Environmental Impact Assessment. 2. Regulation and energy planning. 3. Multicriteria decision-making analysis. I. Branco, David Alves Castelo; Magrini, Alessandra. II. Universidade Federal do Rio de Janeiro, COPPE, Programa de Engenharia Civil. -
How to Create Efficient, Reliable and Clean Electricity Markets: a Regulatory Design for Mongolia and Northeast Asia
MASTER’S THESIS HOW TO CREATE EFFICIENT, RELIABLE AND CLEAN ELECTRICITY MARKETS: A REGULATORY DESIGN FOR MONGOLIA AND NORTHEAST ASIA Working title: Beyond Mining: Barriers to Renewable Energy Investments in Mongolia Paul Maidowski International Relations (B.A.) University of Dresden, 2010 Thesis Advisor: Professor William Moomaw SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE: MASTER OF ARTS IN LAW AND DIPLOMACY THE FLETCHER SCHOOL OF LAW AND DIPLOMACY SEPTEMBER 13, 2012 Version history V 1. Original: September 13, 2012 V 2. Updated: December 7, 2012 V 2.1. Slightly edited: December 8, 2012 Abstract This paper develops a comprehensive proposal for how Mongolia’s domestic power sector could be made more efficient, reliable and sustainable. The analysis is based on inter- views in Ulaanbaatar. It reviews the literature on power sector reforms in small developing countries and regional electricity markets. In a second step, a framework is proposed for a re- gional electricity market between Mongolia, Russia and China. In principle, this framework is applicable also to South Korea and Japan. The findings include that inadequate regulation has contributed to performance prob- lems in every aspect of Mongolia’s power sector, which remains a horizontally integrated monopoly. A lack of generation capacity was ignored for decades; as a result, supply is ex- pected to fall critically short of demand for the coming 3 to 5 years. Mongolia possesses rich coal resources, but water scarcity, harmful emissions, high vulnerability to the effects of cli- mate change, social constraints and the need for economic diversification will limit the future role of conventional technologies. -
The Design and Development of a Human-Powered
THE DESIGN AND DEVELOPMENT OF A HUMAN-POWERED AIRPLANE A THESIS Presented to the Faculty of the Graduate Division "by James Marion McAvoy^ Jr. In Partial Fulfillment of the Requirements for the Degree Master of Science in Aerospace Engineering Georgia Institute of Technology June _, 1963 A/ :o TEE DESIGN AND DETERMENT OF A HUMAN-POWERED AIRPLANE Approved: Pate Approved "by Chairman: M(Ly Z7. /q£3 In presenting the dissertation as a partial fulfillment of the requirements for an advanced degree from the Georgia Institute of Technology, I agree that the Library of the Institution shall make it available for inspection and circulation in accordance with its regulations governing materials of this type. I agree that permission to copy from, or to publish from, this dissertation may he granted by the professor under whose direction it was written, or, in his absence, by the dean of the Graduate Division when such copying or publication is solely for scholarly purposes and does not involve potential financial gain. It is under stood that any copying from, or publication of, this disser tation which involves potential financial gain will not be allowed without written permission. i "J-lW* 11 ACKNOWLEDGMENTS The author wishes to express his most sincere appreciation to Pro fessor John J, Harper for acting as thesis advisor, and for his ready ad vice at all times. Thanks are due also to Doctor Rohin B. Gray and Doctor Thomas W. Jackson for serving on the reading committee and for their help and ad vice . Gratitude is also extended to,all those people who aided in the construction of the MPA and to those who provided moral and physical sup port for the project. -
Design Study of Technology Requirements for High Performance Single-Propeller- Driven Business Airplanes
3 1176 01346 2362 ! NASA Contractor Report 3863 NASA-CR-386319850007383 Design Study of Technology Requirements for High Performance Single-Propeller- Driven Business Airplanes David L. Kohlman and James Hammer CONTRACT NAS1-16363 JANUARY 1985 N/ A NASA Contractor Report 3863 Design Study of Technology Requirements for High Performance Single-Propeller- Driven Business Airplanes David L. Kohlman and James Hammer Flight Research Laboratory University of Kansas Center for Research, Inc. Lawrence, Kansas Prepared for Langley Research Center under Contract NAS1-16363 N/ A National Aeronautics and Space Administration Scientific and Technical InformationBranch 1985 TABLE OF CONTENTS Page i. INTRODUCTION .............................................. 1 2. NOMENCLATURE .............................................. 5 3. BASELINE CONFIGURATION ANALYSIS ........................... 7 3.1 Description of Baseline Configuration ................ 7 3.2 Effect of Aspect Ratio ............................... ii 3.3 Effect of Wing Loading ............................... 12 3.4 Effect of Wing Natural Laminar Flow .................. 15 3.5 Effect of Fuselage Drag .............................. 19 4. PROPULSION SYSTEM ANALYSIS ................................. 31 4.1 GATE Engine ........................................... 32 4.1.1 Description of Engine .......................... 32 4.1.2 GASP Engine Routine ............................ 33 4.2 Very Advanced Reciprocating Engine (Spark Ignited), (SIR) ............................... 36 4.3 Very Advanced Diesel -
New Energy Finance
new energy finance GLOBAL TRENDS IN SUS T AINABLE ENER G Y INVES T MEN T 2009 Analysis of Trends and Issues in the Financing of Renewable Energy and Energy Efficiency ROGRAMME P NVIRONMENT E Endorsed by ATIONS N NITED U Copyright © United Nations Environment Programme, 2009 This publication may be reproduced in whole or in part and in any form for educational or non-profit purposes without special permission from the copyright holder, provided acknowledgement of the source is made. UNEP would appreciate receiving a copy of any publication that uses this publication as a source. No use of this publication may be made for resale or for any other commercial purpose whatsoever without prior permission in writing from the United Nations Environment Programme. Disclaimer The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the United Nations Environment Programme concerning the legal status of any country, territory, city or area or of its authorities, or concerning delimitation of its frontiers or boundaries. Moreover, the views UNEP expressed do not necessarily represent the decision or the stated policy of the United Nations promotes environ- Environment Programme, nor does citing of trade mentally sound practices names or commercial processes constitute globally and in its own activities. endorsement. This publication is printed on 100% ISBN 978 92 807 3038 recycled paper, using vegetable -based DTI/1186/PA inks and other eco-friendly practices. -
Regulatory Framework Analysis of the Solar Photovoltaic Energy in Brazil: Successes and Delays of a Renewable Energy Policy
Regulatory framework analysis of the solar photovoltaic energy in Brazil: successes and delays of a renewable energy policy Matteo Cervelli Master in International Studies Supervisor: Prof. Catarina Roseta Palma, Associate Professor, Department of Economics, Iscte Business School October, 2020 Regulatory framework analysis of the solar photovoltaic energy in Brazil: successes and delays of a renewable energy policy Matteo Cervelli Master in International Studies Supervisor: Prof. Catarina Roseta Palma, Associate Professor, Department of Economics, Iscte Business School October, 2020 Acknowledgments I would like to express my gratidute firtsly to professor Catarina Roseta Palma who guided me and supported throughout this long and challenging project, contributing to this thesis with a major effort. I would also like to thank the help provided by all of the partipants of this study and thank each one of you for offering valuable data which I used in my study. Secondly, I wish to show my appreciation to all the teaching and research staff in the ISCTE as well as in the departament of Environamental Science of the Universidade Federal Fluminense. The assistance provided was greatly appreciated. A special thanks goes out to my master’s colleagues and my great friend Ingrid with whom I have shared moments of deep anxiety but also of big excitement. I wish to extend my special thanks to my friends who have always been a major source of support when things got bad. To my lovely wife, Bruna, I have been extremely lucky to have meet you in my life. Our destiny has been incredibly generous in bring us together. -
Planning for the Energy Transition: Solar Photovoltaics in Arizona By
Planning for the Energy Transition: Solar Photovoltaics in Arizona by Debaleena Majumdar A Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Approved November 2018 by the Graduate Supervisory Committee: Martin J. Pasqualetti, Chair David Pijawka Randall Cerveny Meagan Ehlenz ARIZONA STATE UNIVERSITY December 2018 ABSTRACT Arizona’s population has been increasing quickly in recent decades and is expected to rise an additional 40%-80% by 2050. In response, the total annual energy demand would increase by an additional 30-60 TWh (terawatt-hours). Development of solar photovoltaic (PV) can sustainably contribute to meet this growing energy demand. This dissertation focuses on solar PV development at three different spatial planning levels: the state level (state of Arizona); the metropolitan level (Phoenix Metropolitan Statistical Area); and the city level. At the State level, this thesis answers how much suitable land is available for utility-scale PV development and how future land cover changes may affect the availability of this land. Less than two percent of Arizona's land is considered Excellent for PV development, most of which is private or state trust land. If this suitable land is not set-aside, Arizona would then have to depend on less suitable lands, look for multi-purpose land use options and distributed PV deployments to meet its future energy need. At the Metropolitan Level, ‘agrivoltaic’ system development is proposed within Phoenix Metropolitan Statistical Area. The study finds that private agricultural lands in the APS (Arizona Public Service) service territory can generate 3.4 times the current total energy requirements of the MSA. -
Design and Development of a Multi- Mission UAS Through Modular Component Integration and Additive Manufacturing
Design and Development of a Multi- Mission UAS through Modular Component Integration and Additive Manufacturing A project present to The Faculty of the Department of Aerospace Engineering San Jose State University in partial fulfillment of the requirements for the degree Master of Science in Aerospace Engineering By Kim Lau August, 2018 approved by Dr. Nikos Mourtos Faculty Advisor 2 Table of Contents 1. Introduction ........................................................................................................................5 1.1. Motivation .................................................................................................................5 1.2. Literature Review .....................................................................................................5 1.2.1. UAV Design and Development Trends ...........................................................5 1.2.2. Push for Modularity .........................................................................................7 1.2.3. Additive Manufacturing ...................................................................................8 1.3. Project Proposal ........................................................................................................11 1.4. Methodology .............................................................................................................11 2. Design Process ...................................................................................................................12 2.1. Mission Specification and