ANALYSIS OF COMBINED CONDUCTION AND RADIATION HEAT TRANSFER IN A RECTANGULAR FURNACE INCLUDING TWO FLAMES

Abstract

Abstract: The present study deals the theoretical modeling aspects of coupled conductive and radiative heat transfer in the presence of absorbing, emitting and scattering gray medium within two-dimensional square furnace including two flames. The gray radiative medium is bounded by isothermal walls which are considered to be opaque, diffuse and gray. The well known discrete ordinate method (DOM) is employed to solve the radiative transfer equation (RTE) to obtain the radiative intensity distribution in the participating medium which is considered to be the hot exhaust gases from two burners. In order to compute the temperature field inside the medium, the gas energy equation including the conductive and radiative term is solved by finite difference method. By this technique, the effect of radiation conduction parameter, which has a main role on thermal behavior of the conduction-radiation systems are throughoutly explored. Comparison between the present numerical results with theoretical results by other investigators shows a good consistency.