Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9599175 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2005 | 14 Pages |
Abstract
This work considers transient radiative and conductive heat transfer in a semitransparent layer of ceramic, submitted to several thermal and radiative boundary conditions. Each side of the layer is exposed to hot or cold radiative surroundings, while each boundary is heated or cooled by convection. The solution procedure must provide accurate temperature distribution in the layer, so a nodal analysis based on Hottel's zonal method extended by ray tracing method is carried out. A finite difference method with non-uniform space and time increments is used to solve the transient energy equation, including a radiative heat source, coupled to a equation of radiative transfer. Variable spacing was used to concentrate grid points in regions with large temperature gradients. The influence of refractive index, optical thicknesses and conduction-radiation parameters is investigated.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Spectroscopy
Authors
Parham Sadooghi,