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Macroscopic foam model with effective material properties for high heat load applications

Brendelberger, Stefan and Hötker, Sabrina and Fend, Thomas and Pitz-Paal, Robert (2012) Macroscopic foam model with effective material properties for high heat load applications. Applied Thermal Engineering, 47, pp. 34-40. Elsevier.

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Abstract

Macroscopic equations are a practical tool for numerical modeling of physical processes in components based on porous media. In this study a set of macroscopic equations is presented including the effective material properties to model the fluid dynamics and heat transfer in open porous metallic foams in high heat load applications. The model is validated in a test campaign using a high radiation flux test facility. In addition the model is used to assess the potential of open porous metallic slip-reaction-foams based on a high temperature resistant nickel alloy in the application as effusion cooled combustion chamber wall elements. The analysis shows promising results even though the cooling efficiency has not yet reached a satisfying level.

Document Type:Article
Title:Macroscopic foam model with effective material properties for high heat load applications
Authors:
AuthorsInstitution or Email of Authors
Brendelberger, Stefanstefan.brendelberger@dlr.de
Hötker, SabrinaDLR
Fend, ThomasDLR
Pitz-Paal, RobertDLR
Date:5 December 2012
Journal or Publication Title:Applied Thermal Engineering
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:47
Page Range:pp. 34-40
Publisher:Elsevier
Status:Published
Keywords:Metal foam; Macroscopic equation; Effective properties; Effusion cooling; LNTE
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Applikationsentwicklung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research
Deposited By: Stefan Brendelberger
Deposited On:28 Sep 2012 11:09
Last Modified:26 Feb 2013 15:00

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