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ICHMT DIGITAL LIBRARY ONLINE

ISSN 961-91393-0-5

Individual price:

$246.00 (Must be sent to your home address)

You can order single issue or individual article. To purchase a single issue or an individual article as well as to view tables of contents and abstracts click on issue number.

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For Online Access

Year 1995

• 1Radiative Transfer I
Proceedings of the First International Symposium on Radiation Transfer - Kusadasi, Turkey, August, 1995

800 pages

Volume price - $192.00

DIRECT EXCHANGE AREAS FOR AN INFINITE RECTANGULAR DUCT BY DISCRETE-ORDINATES METHOD

K. H. Byun
Department of Mechanical Engineering, Dongguk University, Seoul 100-715, Republic of Korea

Theodore F. Smith
Department of Mechanical Engineering, The University of Iowa, Iowa City, Iowa 52242, USA

ABSTRACT

The purpose of this study is to compute direct exchange areas (DEA) for an infinite rectangular duct by using the discrete-ordinates method. DEA's of a system with or without shading are calculated. The effects of optical thickness as well as the number of spatial and angular divisions on the accuracy of the DEA results are studied. As optical thickness increases at a given spatial and angular divisions, the errors increase. For a given optical thickness, the errors are reduced as the number of spatial and angular divisions increase. If there is shading in the system, the accuracy of the results depends on both the number of spatial and angular divisions.