Title

Spray Cooling Of Power Electronics Using High Temperature Coolant And Enhanced Surface

Keywords

Hybrid vehicle; IGBT; Power electronics; Spray cooling; Thermal management

Abstract

A spray cooling system was developed and tested for thermal management of power inverter modules utilized in automotive applications. System featured an array of 1×2 pressure atomized nozzles that used 90 °C antifreeze coolant with 0.15 L/min-cm2liquid flow rate and 145 kPa pressure drop. Two cm2 simulated device, having an enhanced spray surface with micro scale structures, reached up to 400 W/cm2 heat flux with only 14 °C surface superheat. These experimental results demonstrated the capability of greatly reducing the overall thermal resistance of the inverter modules that are commonly cooled with single phase convective systems. Performance of the presented system proved the spray cooling of power electronics as an attractive option that enables high power densities while maintaining satisfactory and uniform device temperatures. In addition, due to the use of high temperature coolant at low flow rates, spray cooling offers compact and efficient system design. ©2009 IEEE.

Publication Date

12-23-2009

Publication Title

5th IEEE Vehicle Power and Propulsion Conference, VPPC '09

Number of Pages

609-613

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/VPPC.2009.5289793

Socpus ID

72149126845 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/72149126845

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