Infrared Mean Absorption Coefficients of Luminous Flames and Smoke

[+] Author and Article Information
G. L. Hubbard, C. L. Tien

Department of Mechanical Engineering, University of California, Berkeley, Calif.

J. Heat Transfer 100(2), 235-239 (May 01, 1978) (5 pages) doi:10.1115/1.3450788 History: Received October 07, 1977; Online August 11, 2010


A simple procedure has been developed for the calculation of the Planck mean emission and absorption coefficients and the Rosseland mean absorption coefficient for infrared radiation of the soot-gas mixtures commonly occurring in luminous flames and smoke. Specific results are presented for mixtures involving carbon dioxide, water vapor and carbon soot, the dominant species in most combustion systems. The close agreement between the various averages clearly demonstrates the usefulness of the mean absorption coefficient concept for applications.

Copyright © 1978 by ASME
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