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RESEARCH PAPER

Mixed Convection of Impinging Air Cooling Over Heat Sink in Telecom System Application

[+] Author and Article Information
Siddharth Bhopte, Musa S. Alshuqairi, Dereje Agonafer

Mechanical and Aerospace Engineering Department, The University of Texas at Arlington, Box 19018, Arlington, TX 76019

Gamal Refai-Ahmed

ATI Technologies Inc., 1 Commerce Valley Drive East, Mail Stop BE-2W, Markham, Ontario, L3T 7X6 Canada

J. Electron. Packag 126(4), 519-523 (Jan 24, 2005) (5 pages) doi:10.1115/1.1827267 History: Received May 21, 2004; Revised July 19, 2004; Online January 24, 2005
Copyright © 2004 by ASME
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References

Lee,  D. Y., and Vafai,  K., 1999, “Comparative Analysis of Jet Impingement and Micro Channel Cooling for High Heat Flux Application,” Int. J. Heat Mass Transfer, 42, pp. 1555–1568.
Sansoucy, E., Oosthuizen, P. H., and Refai-Ahmed, G., 2003, “Enhancement of Air Cooling Limits for Telecom Heat Sink Applications Using Impinging Air Jets,” Proc. of 2003 ASME International Mechanical Engineering Congress & Exposition, ASME, New York.
Sahraoui, M., and Refai-Ahmed, G., 1999, “Flat Plate Fin Heat Sink in Natural Convection Telecommunication Modules,” Advances in Electronic Packaging, ASME, New York, Vol. 26-1.
Kehoe, E., and Davies, M., 2002, “Mixed Convection Cooling of Horizontally Mounted Printed Circuit Board,” Proc. of 2002 Inter Society Conference on Thermal Phenomena.
Deb, P., Basu, B., and Majumdar, P., 1998, “A Comparative Study of Parametric Variation in Forced Convection and Mixed Convection Flow in a Channel With Discrete Heated Modules at High Reynolds Number,” Proc. of 1998 Inter Society Conference on Thermal Phenomena.
Raghavan, J., and Rahman, M., 1996, “Transient Response of a Discrete Heat Source on a Conducting Board in the Presence of Cross Flow Heat Convection,” University of South Florida, 0-7803-3547-3-7/16 IEEE.
Hawkins,  L. E., and Nelson,  D. J., 1992, A Design Methodology for Vertical Channel Flow and Heat Transfer, IEEE Trans. Components, Hybrids, and Manufacturing, 15, 761–770.
Cliff, R., Grace, J. R., and Weber, M. E., 1978, Bubbles, Drops, and Particles, Academic Press, New York.
Incropera, F., and DeWitt, D., 2001, Fundamentals of Heat and Mass Transfer, 5th ed. Wiley, New York.
Sikka, K., Fisher, T., and Torrance, K., 1996, “Effect of Wind Tunnel Orientation and Mixed Convection on Heat Transfer from a PFQP,” Proc. 1996 Inter. Society Conference on Thermal Phenomena.
Choi, C. Y., and Ortega, A., 1992, “Mixed Convection in an Inclined Channel With a Discrete Heat Source,” 1992 Proc. Inter. Society Conference on Thermal Phenomena.
Janna, W. S., 2000, Engineering Heat Transfer, 2nd ed., CRC Press, Boca Raton.

Figures

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Parallel flat plate heat sink under a confined impinging jet
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Details of the heat sink (mm)
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Average Nusselt number as a function of Reynolds number for L/d=2.5 at H/d=3
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Average Nusselt number as a function of Reynolds number for L/d=0.83 at H/d=3
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Coefficient of enhancement as a function of Reynolds number for L/d=2.5 at H/d=3
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Effect of Reynolds number on Richardson number for finned heat sink at L/d=2.5 and H/d=3
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Effect of Rayleigh number on Nusselt number at constant Re=500 for L/d=2.5 and H/d=3
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Combined Effect of Re and Ra on Nusselt number for (500<Re<5000) at H/d=3 and L/d=2.5
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Effect of nozzle to target distance on Nusselt number at Re=500 and L/d=2.5
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Effect of heat sink number of fins on average Nusselt number at Re=500 and L/d=2.5 and H/d=3

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