Jet impingement cooling of an inverter module in the harsh environment of a hybrid vehicle

Avijit Bhunia*, Chung-Lung Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

15 Scopus citations

Abstract

This paper presents a study of liquid jet impingement cooling technique and its system level implementation for thermal management of an inverter module in a hybrid vehicle. Clusters of anti-freeze liquid jet array impinge on the base plate of a 450V (DC Link voltage)/400A (RMS current) module, made by Semikron, Inc. In the harsh environment of an automobile, the ambient temperature of the coolant is 105°C, and the maximum allowable flow rate and pressure drop are 2.5GPM and 1.6bar respectively. The impingement cooling technique demonstrates 1623 Watts of heat dissipation for 20°C device temperature rise above ambient. This translates to a chip level dissipation power density of 56W/cm2, approximately 1.8X improvement over forced convection liquid cooling in the state-of-the-art pin fin cold plate. At the highest power, the less than 3°C temperature variation among the twelve IGBT measurements indicates a high degree of reliability in module operation. The efficient phase change heat transfer mechanism sets in at local base plate temperatures between 109-111°C, which accounts for more than 10% of the total heat dissipation at 1600W level.

Original languageEnglish
Title of host publicationProceedings of the ASME Summer Heat Transfer Conference, HT 2005
Pages561-567
Number of pages7
DOIs
StatePublished - 1 Dec 2005
Event2005 ASME Summer Heat Transfer Conference, HT 2005 - San Francisco, CA, United States
Duration: 17 Jul 200522 Jul 2005

Publication series

NameProceedings of the ASME Summer Heat Transfer Conference
Volume4

Conference

Conference2005 ASME Summer Heat Transfer Conference, HT 2005
CountryUnited States
CitySan Francisco, CA
Period17/07/0522/07/05

Keywords

  • Hybrid vehicle
  • IGBT cooling
  • Inverter module
  • Liquid jet impingement
  • Phase change
  • System integration

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