Application of high porosity metal foams as air-cooled heat exchangers to high heat load removal systems

Ejlali, Azadeh, Ejlali, Arash, Hooman, Kamel and Gurgenci, Hal (2009) Application of high porosity metal foams as air-cooled heat exchangers to high heat load removal systems. International Communications in Heat and Mass Transfer, 36 7: 674-679.

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Author Ejlali, Azadeh
Ejlali, Arash
Hooman, Kamel
Gurgenci, Hal
Title Application of high porosity metal foams as air-cooled heat exchangers to high heat load removal systems
Journal name International Communications in Heat and Mass Transfer  (ERA 2012 Listed)    (ERA 2010 Rank A)   Check publisher's open access policy
Publication date 2009-08
Sub-type Article
Year available 2009
DOI 10.1016/j.icheatmasstransfer.2009.03.001
Volume number 36
Issue number 7
ISSN 0735-1933
Start page 674
End page 679
Total pages 6
Editor W. J. Minkowycz
Place of publication United Kingdom
Publisher Elsevier
Collection year 2010
Language eng
Subject 091305 Energy Generation, Conversion and Storage Engineering
091307 Numerical Modelling and Mechanical Characterisation
C1
970102 Expanding Knowledge in the Physical Sciences
Abstract A numerical study has been conducted to investigate the fluid flow and heat transfer of an air-cooled metal foam heat exchanger under the high speed laminar jet confined by two parallel walls for which the range of the Reynolds number is 600-1000. Two independent numerical solvers were used and cross-validated being a FORTRAN code and the commercially available software CFD-ACE. The effects of local thermal non-equilibrium, thermal dispersion, porosity, and pore density on the heat transfer augmentation are examined for different Reynolds numbers. Application of energy flux vectors, for convection visualization, is also illustrated for a more comprehensive analysis of the problem. Finally, the performance of the metal foam heat exchanger is compared to that of conventional finned design. It is observed that the heat removal rate can be greatly improved at almost no excess cost.
Keyword Heat removal
Metal foam heat exchangers
porous
Convection visualization
laminar jet
Heat
energy flux vectors
Q-Index Code C1
Q-Index Status Confirmed Code
Additional Notes This is an author version of an article later published as Azadeh Ejlali, Arash Ejlali, Kamel Hooman and Hal Gurgenci (2009-08) Application of high porosity metal foams as air cooled heat exchangers to high heat load removal systems. International Communications in Heat and Mass Transfer, 36 7: 674-679. Copyright 2008 Elsevier Ltd All rights reserved. Single copies only may be downloaded and printed for a researcher's personal use and study.

 
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Created: Wed, 01 Jul 2009, 12:01:53 EST by Kamel Hooman on behalf of School of Mechanical and Mining Engineering