Contribution of Thermal Radiation to the Temperature Profile of Ceramic Composite Materials via a (2-D) Two Flux Model

K. Orikasa, M. Landazuri and A. Tremante
Florida International University,
United States

Keywords: Ceramic Composite Materials, Thermal Properties, Combined Mechanisms of Conduction and Radiation, Temperature proflie, 2-D Two Flux Model


The understanding of conductive and radiative heat transfer is of fundamental importance for high temperature applications. High Temperature technologies, including gas and steam turbines, gas compressors, spacecraft structures, internal combustion engines, and nuclear reactors among other examples, deal with combined mechanisms of condition and radiation heat transfer processes. These applications often involve high temperature resistant ceramic composite materials, considered as semitransparent, so their thermal properties are critical to predict under these extreme conditions. The exact solution to conductive and radiative heat transfer problems is not easily achieved via numerical methods due to highly expensive computational times. This study presents a simplified solution of the two dimensional (2-D) steady state conductive and radiative heat transfer via a combination of a new physical formulation, which is the (2-D) Two-Flux Model, coupled with a numerical procedure for the analysis of the temperature profile, intensity of radiation and total heat fluxes. The solution for a steady state conductive radiative energy transfer in an absorbing, emitting and non scattering gray planer two-dimensional medium is formulated.