Two-Phase Spray Cooling of Hybrid Vehicle Electronics

Issam Mudawar; Desikan Bharathan; Kenneth Kelly; Sreekant Narumanchi

doi:10.1109/TCAPT.2008.2006907

Two-Phase Spray Cooling of Hybrid Vehicle Electronics

Issam Mudawar, Desikan Bharathan, Kenneth Kelly, Sreekant Narumanchi

Center for Integrated Mobility Sciences

Research output: Contribution to journal › Article › peer-review

165 Scopus Citations

Abstract

As part of the U.S. Department of Energy's (DOE's) Power Electronics and Electric Machines program area, the DOE's National Renewable Energy Laboratory (NREL) is currently leading a national effort to develop next-generation cooling technologies for hybrid vehicle electronics. Spray cooling has been identified as a potential solution that can dissipate 150-200 W/cm² while maintaining the chip temperature below 125 ° C. This paper explores the viability and implementation of this cooling scheme. First, commercial coolants are assessed for their suitability to this application in terms of thermal, environmental, and safety concerns and material compatibility. In this assessment, HFE-7100 is identified as the optimum coolant in all performance categories. Next, spray models are used to determine the HFE-7100 spray conditions that meet such stringent heat dissipation requirements. These findings are verified experimentally, demonstrating that spray cooling is a viable thermal management solution for hybrid vehicle electronics.

Original language	American English
Pages (from-to)	501-512
Number of pages	12
Journal	IEEE Transactions on Components and Packaging Technologies
Volume	32
Issue number	2
DOIs	https://doi.org/10.1109/TCAPT.2008.2006907 https://doi.org/10.1109/TCAPT.2008.2006907
State	Published - 2009

NREL Publication Number

NREL/JA-540-43986

Keywords

Boiling
Critical heat flux (CHF)
Dielectric coolant
Hybrid vehicles
Phase change
Power electronics
Refrigerant
Sprays

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KW - Phase change

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Two-Phase Spray Cooling of Hybrid Vehicle Electronics

Abstract

NREL Publication Number

Keywords

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