Download or read book Fuel Cell Auxiliary Power Study Volume 1 written by Audie Mak and published by BiblioGov. This book was released on 2013-07 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated the feasibility of a hybrid solid oxide fuel cell (SOFC) auxiliary power unit (APU) and the impact in a 90-passenger More-Electric Regional Jet application. The study established realistic hybrid SOFC APU system weight and system efficiencies, and evaluated the impact on the aircraft total weight, fuel burn, and emissions from the main engine and the APU during cruise, landing and take-off (LTO) cycle, and at the gate. Although the SOFC APU may be heavier than the current conventional APU, its weight disadvantage can be offset by fuel savings in the higher SOFC APU system efficiencies against the main engine bleed and extraction during cruise. The higher SOFC APU system efficiency compared to the conventional APU on the ground can also provide considerable fuel saving and emissions reduction, particularly at the gate, but is limited by the fuel cell stack thermal fatigue characteristic.
Download or read book Innovations in Fuel Cell Technologies written by Robert Steinberger-Wilckens and published by Royal Society of Chemistry. This book was released on 2010-10-18 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the state-of-the-art in fuel cells (low and high temperature) across all the types applied in the field today and assesses current trends in development. The main technology problems are discussed and current gaps to market success identified. The innovations covered in the book deliver new answers to pertinent problems and/or offer new opportunities, be it in operating conditions, application area, extension of lifetime, new fuels, exciting new diagnosis and analysis methods. The volume gives an insight not only to the key developments within the next few years, but also shows perspectives in the mid-term. Readers receive an overview of cutting edge, challenging research and development that can be used in future developments, both of personal careers, as well as in company technology planning.
Download or read book Fuel Cell Seminar 2008 written by M. Williams and published by The Electrochemical Society. This book was released on 2009-05 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this issue of ECS Transactions were originally presented at the 2008 Fuel Cell Seminar & Exposition, held in Phoenix, Arizona, October 27 to October 31, 2008.
Download or read book Control of Fuel Cell Power Systems written by Jay T. Pukrushpan and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the latest research in the control of fuel cell technology, this book will contribute to the commercial viability of the technology. The authors’ background in automotive technology gives the work added authority as a vital element of future planning.
Download or read book Fuel Cell Airframe Integration Study for Short Range Aircraft Volume 1 Aircraft Propulsion and Subsystems Integration Evaluation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-31 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study is to define the functionality and evaluate the propulsion and power system benefits derived from a Solid Oxide Fuel Cell (SOFC) based Auxiliary Power Unit (APU) for a future short range commercial aircraft, and to define the technology gaps to enable such a system. United Technologies Corporation (UTC) Integrated Total Aircraft Power System (ITAPS) methodologies were used to evaluate a baseline aircraft and several SOFC architectures. The technology benefits were captured as reductions of the mission fuel burn, life cycle cost, noise and emissions. As a result of the study, it was recognized that system integration is critical to maximize benefits from the SOFC APU for aircraft application. The mission fuel burn savings for the two SOFC architectures ranged from 4.7 percent for a system with high integration to 6.7 percent for a highly integrated system with certain technological risks. The SOFC APU itself produced zero emissions. The reduction in engine fuel burn achieved with the SOFC systems also resulted in reduced emissions from the engines for both ground operations and in flight. The noise level of the baseline APU with a silencer is 78 dBA, while the SOFC APU produced a lower noise level. It is concluded that a high specific power SOFC system is needed to achieve the benefits identified in this study. Additional areas requiring further development are the processing of the fuel to remove sulfur, either on board or on the ground, and extending the heat sink capability of the fuel to allow greater waste heat recovery, resolve the transient electrical system integration issues, and identification of the impact of the location of the SOFC and its size on the aircraft.Gummalla, Mallika and Pandy, Arun and Braun, Robert and Carriere, Thierry and Yamanis, Jean and Vanderspurt, Thomas and Hardin, Larry and Welch, RickGlenn Research CenterSOLID OXIDE FUEL CELLS; AUXILIARY POWER SOURCES; WASTE ENERGY UTILIZATION; SYSTEMS INTEGRATION; WASTE
Download or read book Solid Oxide Fuel Cell APU Feasibility Study for a Long Range Commercial Aircraft Using UTC ITAPS Approach Volume 1 Aircraft Propulsion and Subsystems Integration Evaluation written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-08-05 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this contract effort was to define the functionality and evaluate the propulsion and power system benefits derived from a Solid Oxide Fuel Cell (SOFC) based Auxiliary Power Unit (APU) for a future long range commercial aircraft, and to define the technology gaps to enable such a system. The study employed technologies commensurate with Entry into Service (EIS) in 2015. United Technologies Corporation (UTC) Integrated Total Aircraft Power System (ITAPS) methodologies were used to evaluate system concepts to a conceptual level of fidelity. The technology benefits were captured as reductions of the mission fuel burn and emissions. The baseline aircraft considered was the Boeing 777-200ER airframe with more electric subsystems, Ultra Efficient Engine Technology (UEET) engines, and an advanced APU with ceramics for increased efficiency. In addition to the baseline architecture, four architectures using an SOFC system to replace the conventional APU were investigated. The mission fuel burn savings for Architecture-A, which has minimal system integration, is 0.16 percent. Architecture-B and Architecture-C employ greater system integration and obtain fuel burn benefits of 0.44 and 0.70 percent, respectively. Architecture-D represents the highest level of integration and obtains a benefit of 0.77 percent. Srinivasan, Hari and Yamanis, Jean and Welch, Rick and Tulyani, Sonia and Hardin, Larry Glenn Research Center NASA/CR-2006-214458/VOL1, E-15722 NAS3-01138; WBS 561581.02.08.03.06.01 AUXILIARY POWER SOURCES; SOLID OXIDE FUEL CELLS; BOEING 777 AIRCRAFT; CERAMICS; AIRFRAMES; SYSTEMS INTEGRATION; PROPULSION; FEASIBILITY
Download or read book IEK 3 Report 2011 Climate Relevant Energy Research written by and published by Forschungszentrum Jülich. This book was released on 2012 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Fuel Cells 6 Volume Set written by Wolf Vielstich and published by Wiley. This book was released on 2009-09-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This six volume set brings together for the first time in a single reference work the fundamentals, principles and the current state-of-the-art in fuel cells. Its publication reflects the increasing importance and the rapidly growing rate of research into alternative, clean sources of energy. With internationally renowned editors, advisory board members, and contributors from academia and industry, it guides the reader from the foundations and fundamental principles through to the latest technology and cutting-edge applications, ensuring a logical, consistent approach to the subject. The Handbook is divided into four main themes: Volume 1: "Fundamentals and Survey of Systems" Volume 2: "Fuel Cell Electrocatalysis" Volumes 3 and 4: "Fuel Cell Technology and Applications" Volumes 5 and 6: "Advances in Electrocatalysis, Materials, Diagnostics and Durability"
Download or read book Solid Oxide Fuel Cell Apu Feasibility Study for a Long Range Commercial Aircraft Using Utc Itaps Approach written by Hari Srinivasan and published by BiblioGov. This book was released on 2013-07 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this contract effort was to define the functionality and evaluate the propulsion and power system benefits derived from a Solid Oxide Fuel Cell (SOFC) based Auxiliary Power Unit (APU) for a future long range commercial aircraft, and to define the technology gaps to enable such a system. The study employed technologies commensurate with Entry into Service (EIS) in 2015. United Technologies Corporation (UTC) Integrated Total Aircraft Power System (ITAPS) methodologies were used to evaluate system concepts to a conceptual level of fidelity. The technology benefits were captured as reductions of the mission fuel burn and emissions. The baseline aircraft considered was the Boeing 777-200ER airframe with more electric subsystems, Ultra Efficient Engine Technology (UEET) engines, and an advanced APU with ceramics for increased efficiency. In addition to the baseline architecture, four architectures using an SOFC system to replace the conventional APU were investigated. The mission fuel burn savings for Architecture-A, which has minimal system integration, is 0.16 percent. Architecture-B and Architecture-C employ greater system integration and obtain fuel burn benefits of 0.44 and 0.70 percent, respectively. Architecture-D represents the highest level of integration and obtains a benefit of 0.77 percent.
Download or read book Fuel Cells Technologies for Fuel Processing written by Dushyant Shekhawat and published by Elsevier. This book was released on 2011-03-18 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel Cells: Technologies for Fuel Processing provides an overview of the most important aspects of fuel reforming to the generally interested reader, researcher, technologist, teacher, student, or engineer. The topics covered include all aspects of fuel reforming: fundamental chemistry, different modes of reforming, catalysts, catalyst deactivation, fuel desulfurization, reaction engineering, novel reforming concepts, thermodynamics, heat and mass transfer issues, system design, and recent research and development. While no attempt is made to describe the fuel cell itself, there is sufficient description of the fuel cell to show how it affects the fuel reformer. By focusing on the fundamentals, this book aims to be a source of information now and in the future. By avoiding time-sensitive information/analysis (e.g., economics) it serves as a single source of information for scientists and engineers in fuel processing technology. The material is presented in such a way that this book will serve as a reference for graduate level courses, fuel cell developers, and fuel cell researchers. Chapters written by experts in each area Extensive bibliography supporting each chapter Detailed index Up-to-date diagrams and full colour illustrations
Download or read book Fuel Cells written by Supramaniam Srinivasan and published by Springer Science & Business Media. This book was released on 2006-05-05 with total page 707 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concise sourcebook of the electrochemical, engineering and economic principles involved in the development and commercialization of fuel cells offers a thorough review of applications and techno-economic assessment of fuel cell technologies, plus in-depth discussion of conventional and novel approaches for generating energy. Parts I and II explain basic and applied electrochemistry relevant to an understanding of fuel cells. Part III covers engineering and technology aspects. The book is useful for undergraduate and graduate students and scientists interested in fuel cells. Unlike any other current book on fuel cells, each chapter includes problems based on the discussions in the text.
Download or read book Hydrogen Energy written by Paul Ekins and published by Routledge. This book was released on 2010-08-12 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen could be a significant fuel of the future, with the potential to make a major contribution to the resolution of pressing social and environmental problems such as carbon emissions, energy security and local air pollution. This book, based on four years of detailed research, subjects the promise and potential of hydrogen to searching, in-depth socio-economic analysis. It discusses the different technologies for the production, distribution, storage and use of hydrogen, and analyses the economics of these technologies and their current market prospects. It also describes various experiences with aspects of a hydrogen economy in two parts of the world - the UK and Canada - and then assesses the nature of different hydrogen futures that might develop depending on how the technology, economics, social acceptance and policy frameworks play out in different contexts. The book ends by setting out the policy drivers and levers which could stimulate a virtuous circle of research and development, innovation and investment that might ultimately generate a sustainable hydrogen economy. This is essential reading for economists, engineers, business leaders, investors, policy makers, researchers and students who are interested in the future of the energy system and the part that hydrogen might play in it.
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1965 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1964 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
