Numerical Simulations of Boiling Jet Impingement Cooling in Power Electronics

Sreekant Narumanchi, Andrey Troshko, Vahab Hassani, Desikan Bharathan

Research output: Contribution to conferencePaperpeer-review

5 Scopus Citations

Abstract

Boiling jet impingement cooling is currently being explored to cool power electronics components. In hybrid vehicles, inverters are used for DC-AC conversion. These inverters involve a number of insulated gate bipolar transistors (IGBTs), which are used as on/off switches. The heat dissipated in these transistors can result in heat fluxes of up to 200 W/cm2, which makes the thermal management problem quite important. In this paper, turbulent jet impingement involving nucleate boiling is explored numerically. The framework for these computations is the CFD code FLUENT. For nucleate boiling, the Eulerian multiphase model is used. A mechanistic model of nucleate boiling is implemented in a user-defined function (UDF) in FLUENT. The numerical results for boiling water jets (submerged) are validated against existing experimental data in the literature. Some representative IGBT package simulations that use R134a as the cooling fluid are also presented.

Original languageAmerican English
Pages204-214
Number of pages11
DOIs
StatePublished - 2006
Event10th Intersociety Conference on Thermal and Thermomechanical Phenomena and Emerging Technologies in Electronic Systems, ITherm 2006 - San Diego, CA, United States
Duration: 30 May 20062 Jun 2006

Conference

Conference10th Intersociety Conference on Thermal and Thermomechanical Phenomena and Emerging Technologies in Electronic Systems, ITherm 2006
Country/TerritoryUnited States
CitySan Diego, CA
Period30/05/062/06/06

Bibliographical note

For preprint version see NREL/CP-540-39401

NREL Publication Number

  • NREL/CP-540-41188

Keywords

  • Boiling
  • CFD
  • IGBTs
  • Numerical simulations
  • Power electronics

Fingerprint

Dive into the research topics of 'Numerical Simulations of Boiling Jet Impingement Cooling in Power Electronics'. Together they form a unique fingerprint.

Cite this