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RADIATIVE HEAT TRANSFER OF ARBITRARY THREE-DIMENSIONAL, NONGRAY AND AN ISOTROPIC ALLY SCATTERING MEDIA AND SURFACES

Shigenao Maruyama
Institute of Fluid Science, Tohoku University Katahira 2-1 -1, Aoba-ku Sendai, 980-8577 Japan

Zhixiong Guo
Institute of Fluid Science, Tohoku University Katahira 2-1 -1, Aoba-ku Sendai, 980-8577 Japan

Mitsuo Higano
Akita Prefectural University

Abstract

Radiative heat transfer has been investigated in three-dimensional arbitrary container with nongray absorbing, emitting and anisotropically scattering media surrounded by opaque surfaces. The Radiation Element Method by Ray Emission Method, REM2, has been developed The accuracy of the present method was verified against the Monte Carlo Method for pure participating gas or the gas and particles in plane parallel plates. Excellent agreements with the existing solutions were found with several particle densities. The analysis of radiation heat transfer in a complicated configuration of boiler furnace was performed The boiler furnace contains a mixture of nongray CO2, H2O, and N2 and anisotropically scattering carbon particles. The heat flux distribution in the boiler furnace was obtained. The influence of particle density was discussed.

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