Paper Information

Journal:   AMIRKABIR   FALL 2007-WINTER 2008 , Volume 18 , Number 67-B; Page(s) 21 To 29.
 
Paper:  ANALYSIS OF THERMAL CHARACTERISTICS OF POROUS RADIANT BURNERS BY TWO-FLUX RADIATION MODEL
 
Author(s):  OMID PANAH M., GANJ ALI KHAN NASAB S.A.A.R.*
 
* 
 
Abstract: 

This paper describes a theoretical study to investigate the heat transfer characteristics of porous radiant burners. A one dimensional model is used to solve the governing equations for porous medium and gas flow before the premixed flame to the exhaust gas. Combustion in the porous medium is modeled as a spatially dependent heat generation zone. The homogeneous porous media, in addition to its convective heat exchange with the gas, may absorb, emit and scatter thermal radiation. In the computation, the radiation effect in the gas flow is neglected but the conductive heat transfer is considered into account. In order to analyze the thermal characteristics of porous burners, the coupled energy equations for the gas and porous medium based on two-flux radiation model are solved numerically and the effect of various factors on the performance of porous radiant burners are determined. Comparison between the present results with those obtained by other investigators shows a good agreement.

 
Keyword(s): POROUS RADIANT BURNERS, TWO-FLUX MODEL
 
References: 
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