NDLI: Practical design of a 1000 W/cm/sup 2/ cooling system [high power electronics]

Content Provider	IEEE Xplore Digital Library
Author	Faulkner, D. Khotan, M. Shekarriz, R.
Copyright Year	2003
Description	Author affiliation: MicroEnergy Technol., Inc, Vancouver, WA, USA (Faulkner, D.; Khotan, M.; Shekarriz, R.)
Abstract	In this paper, the results of an experimental study have been reported of a high heat flux cooling system for thermal management of high power electronics. The objective of this study is to investigate whether or not a practical design solution exists for easily achieving 1000 W/cm/sup 2/ cooling of microwave electronics. A laboratory test module was designed, built, and tested to verify its performance. The experimental system employed sub-cooled as well as saturated forced convection boiling heat transfer in a parallel microchannel heat sink. The working fluids tested were water and a selection of ceramic-based nanoparticle suspensions (nanofluids). The system was observed to dissipate heat fluxes in excess of 275 W/cm/sup 2/ of the substrate, while maintaining the substrate at or below 125/spl deg/C. For optimized fin geometry, the current conditions would result in greater than 500 W/cm/sup 2/. While the use of nanofluids was intended for boiling enhancement with reduced flow maldistribution in the microchannels, we discerned limited improvement in the overall heat transfer rate. Future studies are planned for further investigation of nucleate boiling of nanoparticles.
Starting Page	223
Ending Page	230
File Size	509199
Page Count	8
File Format	PDF
ISBN	0780377931
ISSN	10652221
DOI	10.1109/STHERM.2003.1194366
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-03-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Heat transfer Electronics cooling Thermal management of electronics Heat sinks Microchannel Energy management Thermal management Power system management Power electronics
Content Type	Text
Resource Type	Article

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