Appropriate Mean Absorption Coefficients for Infrared Radiation of Gases

[+] Author and Article Information
M. M. Abu-Romia

Polytechnic Institute of Brooklyn, Brooklyn, N. Y.

C. L. Tien

University of California, Berkeley, Calif.

J. Heat Transfer 89(4), 321-327 (Nov 01, 1967) (7 pages) doi:10.1115/1.3614392 History: Received July 18, 1966; Revised January 27, 1967; Online August 25, 2011


In this paper, a study is made on the calculation of appropriate mean absorption coefficients for the infrared radiation of gases. The Planck and Rosseland mean absorption coefficients for the optically thin and optically thick gases are expressed as functions of the spectroscopic and thermodynamic properties of the gas. Values of the Planck and Rosseland mean absorption coefficients are presented for carbon monoxide, carbon dioxide, and water vapor in the temperature range from 1000 to 5000 deg Rankine. To illustrate the application of these results, the radiative heat flux is calculated for the simple case of a planar medium.

Copyright © 1967 by ASME
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