Commercial Aircraft Propulsion and Energy Systems Research
Commercial Aircraft Propulsion and Energy Systems Research

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2016-08-09

Total Pages: 123

ISBN-13: 0309440998

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The primary human activities that release carbon dioxide (CO2) into the atmosphere are the combustion of fossil fuels (coal, natural gas, and oil) to generate electricity, the provision of energy for transportation, and as a consequence of some industrial processes. Although aviation CO2 emissions only make up approximately 2.0 to 2.5 percent of total global annual CO2 emissions, research to reduce CO2 emissions is urgent because (1) such reductions may be legislated even as commercial air travel grows, (2) because it takes new technology a long time to propagate into and through the aviation fleet, and (3) because of the ongoing impact of global CO2 emissions. Commercial Aircraft Propulsion and Energy Systems Research develops a national research agenda for reducing CO2 emissions from commercial aviation. This report focuses on propulsion and energy technologies for reducing carbon emissions from large, commercial aircraftâ€" single-aisle and twin-aisle aircraft that carry 100 or more passengersâ€"because such aircraft account for more than 90 percent of global emissions from commercial aircraft. Moreover, while smaller aircraft also emit CO2, they make only a minor contribution to global emissions, and many technologies that reduce CO2 emissions for large aircraft also apply to smaller aircraft. As commercial aviation continues to grow in terms of revenue-passenger miles and cargo ton miles, CO2 emissions are expected to increase. To reduce the contribution of aviation to climate change, it is essential to improve the effectiveness of ongoing efforts to reduce emissions and initiate research into new approaches.

Aircraft Electricity and Electronics, Seventh Edition
Aircraft Electricity and Electronics, Seventh Edition

Author: Thomas K. Eismin

Publisher: McGraw Hill Professional

Published: 2019-02-01

Total Pages: 673

ISBN-13: 1260108228

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Two books in one! Up-to-date coverage of electrical and electronics systems for all types of aircraft -- plus a full student study guide This thoroughly revised guide offers comprehensive explanations of the theory, design, and maintenance of current aircraft electrical and electronics systems. In-depth details on AC and DC systems for all varieties of aircraft—including the newest models—are provided, along with improved diagrams and helpful troubleshooting techniques. You will get complete coverage of cutting-edge topics, including digital control systems, digital data transfer methods, fiber-optic technology, and the latest flight deck instrumentation systems. A student study guide is also included, featuring a workbook with hundreds of multiple-choice, fill-in-the-blank, and analysis questions. Aircraft Electricity and Electronics, Seventh Edition, covers: •Aircraft storage batteries •Electric wire and wiring practices •Alternating current •Electrical control devices •Digital electronics •Electric measuring instruments •Electric motors, generators, alternators, and inverters •Power distribution systems •Design and maintenance of aircraft electrical systems •Radio theory •Communication and navigation systems •Weather warning and other safety systems

Aircraft Electrical and Electronic Systems
Aircraft Electrical and Electronic Systems

Author: David Wyatt

Publisher: Routledge

Published: 2009-06-04

Total Pages: 419

ISBN-13: 1136444343

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The Aircraft Engineering Principles and Practice Series provides students, apprentices and practicing aerospace professionals with the definitive resources to take forward their aircraft engineering maintenance studies and career. This book provides a detailed introduction to the principles of aircraft electrical and electronic systems. It delivers the essential principles and knowledge required by certifying mechanics, technicians and engineers engaged in engineering maintenance on commercial aircraft and in general aviation. It is well suited for anyone pursuing a career in aircraft maintenance engineering or a related aerospace engineering discipline, and in particular those studying for licensed aircraft maintenance engineer status. The book systematically covers the avionic content of EASA Part-66 modules 11 and 13 syllabus, and is ideal for anyone studying as part of an EASA and FAR-147 approved course in aerospace engineering. All the necessary mathematical, electrical and electronic principles are explained clearly and in-depth, meeting the requirements of EASA Part-66 modules, City and Guilds Aerospace Engineering modules, BTEC National Units, elements of BTEC Higher National Units, and a Foundation Degree in aircraft maintenance engineering or a related discipline.

Fundamentals of Electric Aircraft
Fundamentals of Electric Aircraft

Author: Pascal Thalin

Publisher: SAE International

Published: 2018-12-18

Total Pages: 260

ISBN-13: 0768093228

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Fundamentals of Electric Aircraft was developed to explain what the electric aircraft stands for by offering an objective view of what can be expected from the giant strides in innovative architectures and technologies enabling aircraft electrification. Through tangible case studies, a deep insight is provided into this paradigm shift cutting across various aircraft segments – from General Aviation to Large Aircraft. Addressing design constraints and timelines foreseen to reach acceptable performance and maturity levels, Fundamentals of Electric Aircraft puts forward a general view of the progress made to date and what to expect in the years to come. Drawing from the expertise of four industry veterans, Pascal Thalin (editor), Ravi Rajamani, Jean-Charles Mare and Sven Taubert (contributors), it addresses futuristic approaches but does not depart too far from the operational down-to-earth realities of everyday business. Fundamentals of Electric Aircraft also offers analyses on how performance enhancements and fuel burn savings may bring more value for money as long as new electric technologies deliver on their promises.

Scientific and Technical Aerospace Reports
Scientific and Technical Aerospace Reports

Author:

Publisher:

Published: 1995

Total Pages: 538

ISBN-13:

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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Modern Permanent Magnet Electric Machines
Modern Permanent Magnet Electric Machines

Author: Jacek F. Gieras

Publisher: CRC Press

Published: 2022-12-05

Total Pages: 332

ISBN-13: 1000777014

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The late 1980s saw the beginning of the PM brushless machine era, with the invention of high-energy density permanent magnets (PM) and the development of power electronics. Although induction motors are now the most popular electric motors, the impact of PM brushless machines on electromechanical drives is significant. Today, PM machines come second to induction machines. Replacement of electromagnetic field excitation systems by PMs brings the following benefits: No electrical energy is absorbed by the field excitation system and thus there are no excitation losses, causing substantial increase in efficiency Higher power density (kW/kg) and/or torque density (Nm/kg) than electromagnetic excitation Better dynamic performance than motors with electromagnetic excitation (higher magnetic flux density in the air gap) Simplification of construction and maintenance Less expensive for some types of machines Modern Permanent Magnet Electric Machines: Theory and Control serves as a textbook for undergraduate power engineering students who want to supplement and expand their knowledge in the fundamentals of magnetism, soft magnetic materials, permanent magnets (PMs), calculation of magnetic circuits with PMs, modern PM brushed DC machines and their controls, modern PM brushless DC motors and drive control, and modern PM generators. The book can help students learn more about electrical machines and can serve as a prescribed text for teaching elective undergraduate courses such as modern permanent magnet electrical machines. Since the book is written in a simple scientific language and without redundant mathematics, it can also be used by practicing engineers and managers employed in electrical machinery or electromagnetic device industries.