Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-27T12:43:51.555Z Has data issue: false hasContentIssue false

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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

Save book to Kindle

To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×