TECHNICAL PAPERS: Radiative Heat Transfer

Combined Radiation and Conduction in Glass Foams

[+] Author and Article Information
Mark J. Varady, Andrei G. Fedorov

Multiscale Integrated Thermofluidics Laboratory, G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

J. Heat Transfer 124(6), 1103-1109 (Dec 03, 2002) (7 pages) doi:10.1115/1.1513579 History: Received July 17, 2001; Revised June 26, 2002; Online December 03, 2002
Copyright © 2002 by ASME
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Schematic of glass foam layer
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(a) Typical cubic cell; (b) thermal resistance elements of the cubic cell; and (c) equivalent thermal resistance network for computing the effective thermal conductivity of the foam
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Code validation results: comparison of the temperature profiles for different values of the conduction to radiation parameter 10
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Temperature field for baseline case and a zero-radiation resistance layer
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Effect of foam layer thickness on temperature profile for the foam layer with average bubble diameter a=5 mm
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Effect of bubble size on temperature distribution for a 1 cm foam layer
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Effect of bubble size on temperature field for a 5 cm foam layer
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Effect of bubble size on spectral extinction coefficient



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