scholarly journals Conductive-radiative heat transfer in a 2D semi-transparent medium with a square centered obstacle

2021 ◽  
Vol 159 ◽  
pp. 106600
Author(s):  
Julien Sorel Djeumegni ◽  
Myriam Lazard ◽  
Vital Le Dez ◽  
Hervé Thierry Tagne Kamdem
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Transparent Medium

scholarly journals On Radiative Transfer and Gray Body Parameter for Partially Transparent Media

2019 ◽  
pp. 1-11
Author(s):  
K. Manuilov
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Transparent Medium ◽  
Body Parameter ◽  
Transfer Equations ◽  
Transparent Media ◽  
Thermal Disturbance ◽  
Opaque Body

We obtained a solution to radiative heat transfer equations, which describes a multi-layer gray semi-transparent medium in terms of an opaque body. It is shown that the thermal disturbance between the layers of a medium qualitatively changes its optical properties. We introduced a gray body parameter, which allowed us to describe multilayer gray semi-transparent media with low thermal conductivity. We propose a method for calculating heat transfer by thermal radiation in a gray semi-transparent medium and present the results of radiative heat transfer calculations for screen-vacuum and powder insulation materials as examples of such media.

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