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RESEARCH PAPERS

Combined Heat Transfer in a Semitransparent Multilayer Packed Bed

[+] Author and Article Information
G. Flamant, T. Menigault, D. Schwander

Institut de Science et de Génie des Matériaux et Procédés, Centre National de Recherche Scientifique, BP.5, 66120, Odeillo, France

J. Heat Transfer 110(2), 463-467 (May 01, 1988) (5 pages) doi:10.1115/1.3250508 History: Received January 23, 1987; Online October 20, 2009

Abstract

Combined radiative, conductive, and forced convective heat transfer through a packed bed composed of two spectrally dissimilar slabs of particles is analyzed on the basis of the two-flux model. Taking into account the variation of absorption and scattering of the layers in the visible and infrared spectral ranges, the selectivity of such a system is proved theoretically. Experiments are run using a bed composed of glass and silicon carbide particles as a solar absorber for gas heating. Good agreement is shown in the comparison of predictions with experimental data.

Copyright © 1988 by ASME
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