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TECHNICAL PAPERS

Transport Phenomena in Two-Phase Micro-Channel Heat Sinks

[+] Author and Article Information
Weilin Qu, Issam Mudawar

  Purdue University International Electronic Cooling Alliance (PUIECA), Boiling and Two-Phase Flow Laboratory, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907e-mail: mudawar@ecn.purdue.edu

J. Electron. Packag 126(2), 213-224 (Jul 08, 2004) (12 pages) doi:10.1115/1.1756145 History: Received April 01, 2003; Revised January 01, 2004; Online July 08, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic diagram of low loop
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Test module construction
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Top views of micro-channels illustrating (a) pressure drop oscillation, (b) parallel channel instability
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Temporal records of inlet and outlet pressures during (a) pressure drop oscillation and (b) parallel channel instability
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Temporal records of heat sink temperatures during (a) pressure drop oscillation and (b) parallel channel instability
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Dominant two-phase flow patterns at (a) incipient boiling heat flux, (b) slightly above incipient boiling heat flux, (c) low heat flux, and (d) high heat flux
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Schematic of flow regions in a micro-channel
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Comparison of pressure drop data and predictions at G=400 kg/m2s for (a) Tin=30°C and (b) Tin=60°C
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Comparison of pressure drop data and predictions based on Lockhart-Martinelli correlation
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Schematic of micro-channel heat sink unit cell
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Average heat transfer coefficient versus thermodynamic equilibrium quality at G=400 kg/m2s for (a) Tin=30°C and (b) Tin=60°C
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Comparison of saturated convective boiling heat transfer coefficient data and predictions at G=400 kg/m2s for (a) Tin=30°C and (b) Tin=60°C

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