Advances in Electric Propulsion
SAE International (Verlag)
978-0-7680-8417-7 (ISBN)
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Aviation propulsion development continues to rely upon fossil fuels for the vast majority of commercial and military applications. Until these fuels are depleted or abandoned, burning them will continue to jeopardize air quality and provoke increased regulation. With those challenges in mind, research and development of more efficient and electric propulsion systems will expand. Fuel-cell technology is but one example that addresses such emission and resource challenges, and others, including negligible acoustic emissions and the potential to leverage current infrastructure models. For now, these technologies are consigned to smaller aircraft applications, but are expected to mature toward use in larger aircraft. Additionally, measures such as electric/conventional hybrid configurations will ultimately increase efficiencies and knowledge of electric systems while minimizing industrial costs. Requirements for greater flight time, stealth characteristics, and thrust-to-power ratios adds urgency to the development of efficient propulsion methods for applications such as UAVs, which looks to technologies such as asymmetrical capacitors to enhance electric propulsion efficiency. This book will take the reader through various technologies that will enable a more-electric aircraft future, as well as design methods and certification requirements of more-electric engines.
Introduction
Chapter 1:?Efficiency, Efficiency, Efficiency
Energy Conversion Efficiency
Energy Sources
Energy Loads
Energy Transfer Efficiency
Aircraft Architecture Trends
General Principles
Chapter 2:?Applying Cogeneration in Search of Self?Sufficient Aircraft
CASPER Project Overview
A Constructal Design for Efficiency (CDE) Approach
Getting Down to Design
Results and Discussion
Chapter 3:?Designing Fuel Cells to Fly
Robust Systems Architecting
Robustness Quantification in Systems Sizing
Conclusions
Chapter 4:?Asymmetrical Capacitors for Electric
Propulsion
Technology History
Experimental Setup
Results and Discussion
Conclusions
Chapter 5:?Fueling a Fuel Cell
Power System Components
Testing, Testing
Integration into a Small UAS
Chapter 6:?Engine Certification Standards Impact on MEE
Types and Rates of Engine Failure
Failure Conditions, Operating Strategies
Requirements for Prevention of IFSD
ECS Failure
Managing Faults Through TLD
Requirements to Prevent ECS Failure
Outstanding Questions on MEE Certification
Failure Rate Data, Comparison with Requirements
About the Editor
| Erscheinungsdatum | 10.08.2017 |
|---|---|
| Verlagsort | Warrendale |
| Sprache | englisch |
| Maße | 152 x 229 mm |
| Themenwelt | Technik ► Fahrzeugbau / Schiffbau |
| Technik ► Luft- / Raumfahrttechnik | |
| ISBN-10 | 0-7680-8417-2 / 0768084172 |
| ISBN-13 | 978-0-7680-8417-7 / 9780768084177 |
| Zustand | Neuware |
| Informationen gemäß Produktsicherheitsverordnung (GPSR) | |
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