Numerical Simulations of Nucleate Boiling in Impinging Jets: Applications in Power Electronics Cooling

Sreekant Narumanchi, Andrey Troshko, Desikan Bharathan, Vahab Hassani

Research output: Contribution to journalArticlepeer-review

63 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. The numerical results for boiling water and R113 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
Pages (from-to)1-12
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Volume51
Issue number1-2
DOIs
StatePublished - 2008

NREL Publication Number

  • NREL/JA-540-40606

Keywords

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

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