New Analytical Approach to the Evaluation of Configuration Factors in Radiation From Spheres and Infinitely Long Cylinders

[+] Author and Article Information
A. Feingold, K. G. Gupta

Department of Mechanical Engineering, University of Ottawa, Ottawa, Ontario, Canada

J. Heat Transfer 92(1), 69-76 (Feb 01, 1970) (8 pages) doi:10.1115/1.3449647 History: Received November 07, 1968; Revised April 21, 1969; Online August 11, 2010


It is shown in this paper that, in the case of radiation from spheres and infinitely long cylinders to a certain class of surfaces, the configuration factors are independent of the validity of Lambert’s cosine law. A new technique has been developed to calculate the configuration factors in radiation from spheres and infinitely long cylinders and, with this technique, formulas have been obtained for several geometries for which no solutions have previously appeared in the literature.

Copyright © 1970 by ASME
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