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RESEARCH PAPERS: Liquid Jet Impingement

Correlating Equations for Impingement Cooling of Small Heat Sources With Single Circular Liquid Jets

[+] Author and Article Information
D. J. Womac, S. Ramadhyani, F. P. Incropera

Heat Transfer Laboratory, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907

J. Heat Transfer 115(1), 106-115 (Feb 01, 1993) (10 pages) doi:10.1115/1.2910635 History: Received February 01, 1991; Revised September 01, 1992; Online May 23, 2008

Abstract

Experimental data have been obtained for liquid jet impingement cooling of small square heat sources resembling electronic integrated circuit chips. Both free-surface and submerged jet configurations have been studied for a range of velocities, nozzle diameters, and nozzle-to-heater separation distances, with water and a fluorocarbon liquid (3M FC-77) as coolants. Major trends in the data have been explained in terms of the underlying hydrodynamic and thermal phenomena. The data, obtained over parameter ranges applicable to the cooling of microelectronic chips, have been compared with the predictions of previously developed correlations for jet impingement heat transfer and substantial discrepancies between the data and the predictions have been noted. Based on the present data, two new correlating equations, one for free-surface and the other for submerged jet impingement, have been developed and presented.

Copyright © 1993 by The American Society of Mechanical Engineers
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