Thermal Spreading Analysis of Rectangular Heat Spreader

Author:

Thompson S. M.1,Ma H. B.2

Affiliation:

1. Assistant Professor Department of Mechanical Engineering, Carpenter Hall, P.O. Box 9552, Mississippi State University, Mississippi State, MS 39762

2. C. W. LaPierre Professor Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MS 65211

Abstract

A unique nondimensional scheme that employs a source-to-substrate “area ratio” (e.g., footprint), has been utilized for analytically determining the steady-state temperature field within a centrally-heated, cuboidal heat spreader with square cross-section. A modified Laplace equation was solved using a Fourier expansion method providing for an infinite cosine series solution. This solution can be used to analyze the effects of Biot number, heat spreader thickness, and area ratio on the heat spreader's nondimensional maximum temperature and nondimensional thermal spreading resistance. The solution is accurate only for low Biot numbers (Bi < 0.001); representative of highly-conductive, two-phase heat spreaders. Based on the solution, a unique method for estimating the effective thermal conductivity of a two-phase heat spreader is also presented.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference20 articles.

1. Study on Heat Transfer Performance of an Aluminum Flat Plate Heat Pipe With Fins in Vapor Chamber;Energy Convers. Manage.,2013

2. Feasibility Study of an Aluminum Vapor Chamber With Radial Grooved and Sintered Powders Wick Structures;Appl. Therm. Eng.,2013

3. A Vapor Chamber Using Extended Condenser Concept for Ultra-High Heat Flux and Large Heater Area;Int. J. Heat Mass Transfer,2012

4. A Novel Vapor Chamber and Its Performance;Int. J. Heat Mass Transfer,2010

5. Development of 30 Watt High-Power LEDs Vapor Chamber-Based Plate;Int. J. Heat Mass Transfer,2010

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