Combined Heat Transfer of Radiation and Convection on Wall Sintered with Open Celled Metallic Foams

2011 ◽  
Vol 47 (04) ◽  
pp. 131
Author(s):  
Tiansong WANG
Keyword(s):  
Heat Transfer ◽  
Metallic Foams ◽  
Combined Heat Transfer

scholarly journals Combined Heat Transfer Mechanisms in the Porous Char Layer Formed from the Intumescent Coatings under Fire

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 200
Author(s):  
Lingyun Zhang ◽  
Yupeng Hu ◽  
Minghai Li
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Thermal Conduction ◽  
Total Heat ◽  
Surface Radiation ◽  
Total Heat Transfer ◽  
Char Layer ◽  
Competition Result ◽  
Transfer Mechanisms ◽  
Combined Heat Transfer

This study examines the combined heat transfer by thermal conduction, natural convection and surface radiation in the porous char layer that is formed from the intumescent coating under fire. The results show that some factors, such as the Rayleigh number, conductivity ratio, emissivity, radiation–conduction number, void fraction and heating mode have a certain effect on the total heat transfer. In addition, the natural convection of the air in the cavity always inhibits surface radiation among the solid walls and thermal conduction, and the character of the total heat transfer is the competition result of the three heat transfer mechanisms.

Numerical Simulation of Gas/Solid Heat Transfer in Metallic Foams: A General Correlation for Different Porosities and Pore Sizes

2018 ◽  
Vol 127 (2) ◽  
pp. 481-506 ◽  
Author(s):  
Azade Jafarizade ◽  
Masoud Panjepour ◽  
Mahmood Meratian ◽  
Mohsen Davazdah Emami
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Metallic Foams ◽  
General Correlation ◽  
Pore Sizes
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