Coupled radiative and conductive heat transfer in a non-grey absorbing and emitting semitransparent media under collimated radiation

This paper deals with heat transfer in non grey semitransparent two-dimensional sample. Considering an homogeneous purely absorbing medium, we calculated the temperature field and heat fluxes of a material irradiated under a specific direction. Coupled radiative and conductive heat transfer were considered. The radiative heat transfer equation (RTE) was solved using a S-8 quadrature and a discrete ordinate method. Reflection and absorption coefficients of the medium were calculated with the silica optical properties. The conduction inside the medium was linked to the RTE through the energy conservation. Validation of the model and two original cases are also presented. (C) 2002 Published by Elsevier Science Ltd.