Heat Transfer From a Finned Surface in Ducted Air Jet Suction and Impingement

[+] Author and Article Information
Luis A. Brignoni

Department of Mechanical Engineering, University of Wisconsin–Milwaukee, P.O. Box 784, Milwaukee, WI 53201

Suresh V. Garimella

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288 e-mail: sureshg@ecn.purdue.edu

J. Electron. Packag 122(3), 282-285 (Dec 01, 1999) (4 pages) doi:10.1115/1.1286106 History: Received February 01, 1999; Revised December 01, 1999
Copyright © 2000 by ASME
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Schematic diagrams for: (a) bare surface with ducted suction; (b) enhanced surface with ducted suction; and (c) enhanced surface with jet impingement. All dimensions are in mm.
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Variation of bare surface heat transfer coefficient for different values of nozzle-to-target spacing at Re=10,000 (non-ducted suction)
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(a) Bare-surface (Fig. 1(a), H=19.5 mm), and (b) enhanced-surface (Fig. 1(b), H=21.9 mm) heat transfer coefficients as a function of Reynolds number for all nozzle combinations
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Thermal resistance as a function of volumetric flow rate of air in suction for bare and enhanced-surface experiments
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Thermal resistance as a function of pumping power for suction
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Comparison of heat sink thermal resistance between suction and impingement (Figs. 1(b) and 1(c))



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