Heat Transfer by Simultaneous Conduction and Radiation in an Absorbing Medium

[+] Author and Article Information
R. Viskanta

Argonne National Laboratory, Argonne, Ill.

R. J. Grosh

Purdue University, Lafayette, Ind.

J. Heat Transfer 84(1), 63-72 (Feb 01, 1962) (10 pages) doi:10.1115/1.3684294 History: Received March 20, 1961


Heat transfer by simultaneous conduction and radiation in a thermal radiation absorbing and emitting medium is considered. Consideration is given to a one-dimensional system consisting of two, diffuse, nonblack, infinite, isothermal, parallel plates separated by a finite distance. The space between the plates is filled with a thermal radiation absorbing and emitting medium. The problem is formulated in terms of a nonlinear integro-differential equation and the solution is obtained by reducing it to a nonlinear integral equation. The numerical results are obtained by an iterative method. The temperature distributions and heat transfer are calculated. Two approximate methods for formulating radiant heat-transfer problems are presented and comparisons of the results are made with the most exact solution.

Copyright © 1962 by ASME
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