Thermal Management System for an Electric Machine with Additively Manufactured Hollow Conductors with Integrated Heat Pipes

T. Chowdhury, S. Koushan, A. Al-Qarni, A. El-Refaie, Kevin Bennion, Emily Cousineau, Xuhui Feng, Bidzina Kekelia

Research output: Contribution to conferencePaperpeer-review

7 Scopus Citations

Abstract

This paper discusses steps taken to size a thermal management system for an aircraft propulsion electric machine containing additively manufactured coils integrated with heat pipes aimed at boosting its specific power. Experimental setups are used to size and characterize heat pipes for the application and 3D thermal FEA is used to determine optimum heat transfer coefficient of convective boundaries. Geometric details of fin-based surface area enhancement required to reach target combined overall heat transfer coefficient (U) and surface area (A) performance (UA) in W/K, is worked out for relevant boundaries and the resulting UA is verified in 3D thermal FEA. Thermal management system's UA (by extension specific power) sensitivity to coolant temperature is explored and temperature distribution plots of optimized machine components are presented and discussed.

Original languageAmerican English
Pages1920-1926
Number of pages7
DOIs
StatePublished - 2022
Event2022 International Conference on Electrical Machines, ICEM 2022 - Valencia, Spain
Duration: 5 Sep 20228 Sep 2022

Conference

Conference2022 International Conference on Electrical Machines, ICEM 2022
Country/TerritorySpain
CityValencia
Period5/09/228/09/22

Bibliographical note

See NREL/CP-5400-82597 for preprint

NREL Publication Number

  • NREL/CP-5400-84719

Keywords

  • Additive Manufacturing (AM)
  • Electric Machines
  • Heat Pipes
  • Specific Power (SP)
  • Thermal Management System (TMS)

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