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8 - Thermal Management of Electrified Propulsion Systems

Published online by Cambridge University Press:  11 May 2022

By
Charles E. Lents
Edited by
Kiruba Haran ,
Nateri Madavan  and
Tim C. O'Connell
Kiruba Haran
Affiliation:
University of Illinois, Urbana-Champaign
Nateri Madavan
Affiliation:
NASA Aeronautics Mission Directorate, NASA
Tim C. O'Connell
Affiliation:
P.C. Krause & Associates
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Summary

This chapter details the unique challenge of managing electric drivetrain (EDT) waste heat in electrified aircraft propulsion (EAP) architectures. Hybrid-fueled and hybrid-electric propulsion systems make up the hybrid propulsion family, and these are composed of various combinations of fueled-engine and battery-electric propulsion systems. All comprise EAP systems, and they are analyzed here to assess their thermal performance and thermal management (TM) impacts on the aircraft. An introduction to the TM of HEPS is followed by a discussion of EDT heat sources and aircraft heat sinks. Next follows a summary of TM challenges specific to EDTs and thermal management system (TMS) heat acquisition and component cooling approaches. A review of TMS architectures leads to a reference TMS that is used to introduce general analysis concepts and heat transport and rejection components, including the underlying physics-based equations necessary for their analysis. The chapter concludes with a detailed step-by-step design of the reference TMS, listing constraints, imposed conditions, calculated values, and free parameters.

Keywords

thermal managementthermal management systemhybrid-electric propulsion systemhybrid propulsionelectric drivetrainheat exchanger designoptimizationheat transport
Type
Chapter
Information
Electrified Aircraft Propulsion
Powering the Future of Air Transportation
 , pp. 224 - 255
Publisher: Cambridge University Press
Print publication year: 2022

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References

Felder, J. L., “NASA electric propulsion system studies,” NASA, Cleveland, OH, Tech. Rep. GRC-EDAA-TN28410, 2015.Google Scholar
Torenbeek, E., Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes, 1st ed., West Sussex, UK: John Wiley and Sons, 2013.Google Scholar
Moir, I. and Seabridge, A., Aircraft Systems, 3rd ed., West Sussex, UK: John Wiley and Sons, 2008.Google Scholar
Liu, J. et al., “Pathways for practical high-energy long-cycling lithium metal batteries,” Nat. Energy, vol. 4, pp. 180–186, 2019.CrossRefGoogle Scholar
Borer, N. K. et al., “Design and performance of the NASA SCEPTOR distributed electric propulsion flight demonstrator,” presented at the AIAA Aviation Techn., Integr., and Operations Conf., Washington, D.C., 2016, Paper AIAA 2016-3920.CrossRefGoogle Scholar
Lents, C. E., Hardin, L. W., Rheaume, J. M. and Kohlman, L., “Parallel hybrid gas-electric geared turbofan engine conceptual design and benefits analysis,” presented at the 52nd AIAA/SAE/ASEE Joint Propulsion Conf., Salt Lake City, Utah, 2016, Paper AIAA 2016-4610.Google Scholar
White, F. M., Fluid Mechanics, 8th ed., New York, NY: McGraw-Hill, 2016.Google Scholar
Kays, W. M. and London, A. L., Compact Heat Exchangers, 3rd ed., New York, NY: McGraw-Hill, 1984.Google Scholar

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