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Research Papers

Analysis of Heat Loadings in the Forced Cooled Electronic Chassis or Cold Plate

[+] Author and Article Information
Allan D. Kraus

Professor Emeritus University of Akronenhdrus@sbcglobal.net

J. Heat Transfer 134(3), 031024 (Jan 20, 2012) (7 pages) doi:10.1115/1.4005161 History: Received November 22, 2010; Revised June 28, 2011; Published January 20, 2012; Online January 20, 2012

The forced cooled electronic chassis is revisited and, because of recent developments, changes which amend the design procedure are proposed. These considerations involve the thickness of the cover and splitter plates dictated by the Murray–Gardner assumptions, the impact of the so-called heat flow choke, and the development of a new concept involving the equivalent height of a fin. The current literature is reviewed and summarized, so that the new concept proposed here can be clearly apparent.

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Copyright © 2012 by American Society of Mechanical Engineers
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Figures

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Figure 1

Repeating sections for: (a) single and (b) stacked cold plate cores with single sided loading. The configuration in (b) is a double stack and shows a splitter plate between the stacks. The shaded sections are finned arrays which are subjected to analysis.

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Figure 2

Detail of a 1/8-16.00(D) strip or heat exchanger core (From Kays and London [8] with permission)

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Figure 3

Terminology and coordinate system for longitudinal fin of rectangular profile

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Figure 4

The simplest possible cascade arrangement for two longitudinal fins of rectangular profile

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Figure 5

Fins in cluster. There are n fins attached to fin m and the tip of m is designated as the cluster point

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Figure 6

A repeating section for a double stack with heat input at the lower cover plate

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Figure 7

Two longitudinal fins of rectangular profile in cascade. The fin at the left has a known fin height, bb, and the fin at the right has an, as yet, unknown fin height, ba. The heights of these fins total be, which is the equivalent fin height, that is, be=ba+bb.

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Figure 8

Sketch of repeating section of 15.08 plain plate fin cold plate arranged as a single stack and with heat input at the bottom cold plate

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