Both experimental and theoretical investigations on the heat transfer and flow friction characteristics of compact cold plates have been performed. From the results, the local and average temperature rises on the cold plate surface increase with increasing chip heat flux or decreasing air mass flow rate. Besides, the effect of chip heat flux on the thermal resistance of cold plate is insignificant; while the thermal resistance of cold plate decreases with increasing air mass flow rate. Three empirical correlations of thermal resistance in terms of air mass flow rate with a power of are presented. As for average Nusselt number, the effect of chip heat flux on the average Nusselt number is insignificant; while the average Nusselt number of the cold plate increases with increasing Reynolds number. An empirical relationship between and Re can be correlated. In the flow frictional aspect, the overall pressure drop of the cold plate increases with increasing air mass flow rate; while it is insignificantly affected by chip heat flux. An empirical correlation of the overall pressure drop in terms of air mass flow rate with a power of 1.265 is presented. Finally, both heat transfer performance factor and pumping power factor decrease with increasing Reynolds number in a power of 0.805; while they are independent of chip heat flux. The Colburn analogy can be adequately employed in the study.
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March 2003
Technical Papers
Heat Transfer and Flow Friction Characteristics for Compact Cold Plates
Chang-Yuan Liu, Graduate Student,
Chang-Yuan Liu, Graduate Student
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
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Ying-Huei Hung, Professor and Chairman, Mem. ASME
Ying-Huei Hung, Professor and Chairman, Mem. ASME
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
Search for other works by this author on:
Chang-Yuan Liu, Graduate Student
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
Ying-Huei Hung, Professor and Chairman, Mem. ASME
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
Contributed by the Electronic and Photonic Packaging Division for publication in the JOURNAL OF ELECTRONIC PACKAGING. Manuscript received by the EPPD Division, December 21, 2001. Associate Editor: E. Lorenzini.
J. Electron. Packag. Mar 2003, 125(1): 104-113 (10 pages)
Published Online: March 14, 2003
Article history
Received:
December 21, 2001
Online:
March 14, 2003
Citation
Liu, C., and Hung, Y. (March 14, 2003). "Heat Transfer and Flow Friction Characteristics for Compact Cold Plates ." ASME. J. Electron. Packag. March 2003; 125(1): 104–113. https://doi.org/10.1115/1.1536170
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