The 8th International Chemical Engineering Congress and Exhibition IChEC 2014 , 2014-02-24

Title : ( The effects of natural convection and radiation heat transfer in metal-foam- fin (Aluminum) )

Authors: saeed abdolahi , Saeed Zeinali Heris , Ali Dashti , M. R. Khosravi ,

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The effect of radiation losses on the natural convection heat transfer from metal-foam of convex parabolic profile is studied analytically and numerically. Two models, with and without effect of radiation, are introduced based on using energy balance and Darcy’s model to formulate the heat transfer equation. Air and Aluminum are employed as the cold fluid and porous medium, respectively, and the effects of radiation, pore density (PPI), Rayleigh number (Ra) and porosity on the heat transfer rate are studied in detail. The results show by increasing PPI and decreasing Ra the heat transfer rate decreases as permeability decreases.Furthermore, the effect of porosity on heat transfer without radiation is negligible, but the effects of radiation is considerable in rising heat transfer rate.

Keywords

, Porous fin, Metal foam, Radiation, Pore density, Heat
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@inproceedings{paperid:1040373,
author = {Abdolahi, Saeed and Zeinali Heris, Saeed and Dashti, Ali and M. R. Khosravi},
title = {The effects of natural convection and radiation heat transfer in metal-foam- fin (Aluminum)},
booktitle = {The 8th International Chemical Engineering Congress and Exhibition IChEC 2014},
year = {2014},
location = {کیش, IRAN},
keywords = {Porous fin; Metal foam; Radiation; Pore density; Heat transfer.},
}

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%0 Conference Proceedings
%T The effects of natural convection and radiation heat transfer in metal-foam- fin (Aluminum)
%A Abdolahi, Saeed
%A Zeinali Heris, Saeed
%A Dashti, Ali
%A M. R. Khosravi
%J The 8th International Chemical Engineering Congress and Exhibition IChEC 2014
%D 2014

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