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RESEARCH PAPERS

A Continuous Exchange Factor Method for Radiative Exchange in Enclosures With Participating Media

[+] Author and Article Information
M. H. N. Naraghi, B. Litkouhi

Department of Mechanical Engineering, Manhattan College, Riverdale, NY 10471

B. T. F. Chung

Department of Mechanical Engineering, The University of Akron, Akron, OH 44325

J. Heat Transfer 110(2), 456-462 (May 01, 1988) (7 pages) doi:10.1115/1.3250507 History: Received April 13, 1987; Online October 20, 2009

Abstract

A continuous exchange factor method for the analysis of radiative exchange in gray enclosures with absorbing-emitting and isotropically scattering media and diffuse surfaces is developed. In this method two types of exchange function are defined: the direct exchange function and the total exchange function. Certain integral equations relating total exchange functions to direct exchange functions are developed. These integral equations are solved using a Gaussian quadrature integration method. The results obtained based on the present approach are found to be more accurate than those of the zonal method. Unlike the zonal method, in the present approach, there is no need for evaluation of multiple integrations for calculating direct exchange factors.

Copyright © 1988 by ASME
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