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Characterisation of Air flow Through Sintered Metal Foams

Reutter, Oliver and Smirnova, Elena and Sauerhering, Jörg and Angel, Stefanie and Fend, Thomas and Pitz-Paal, Robert (2008) Characterisation of Air flow Through Sintered Metal Foams. Journal of Fluids Engineering, 130 (5). DOI: 10.1115/1.2907419.

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Official URL: http://link.aip.org/link/?JFG/130/051201

Abstract

This study investigates air flow in metallic foams, which are produced by the SlipReactionFoamSintering (SRFS)-process. It was conducted as part of the collaborative research center (SFB) 561 “Thermally Highly Loaded, Porous and Cooled Multi-Layer Systems for Combined Cycle Power Plants”. The flow through a porous medium is analysed by Darcy’s equation with the Dupuit/Forchheimer extension. All measurements can be described very well by this equation and permeability and inertial coefficients are obtained for a large quantity of samples with different base materials and different porosities. A threshold porosity of 70 % is observed, above which the pressure loss starts sinking significantly with porosity. Additionally, it was found, that the permeability was anisotropic. Permeability is lower in the direction of gravity during foaming. Scattering in the data of the permeability and inertial coefficients versus the porosity is observed and discussed.

Document Type:Article
Title:Characterisation of Air flow Through Sintered Metal Foams
Authors:
AuthorsInstitution or Email of Authors
Reutter, OliverUNSPECIFIED
Smirnova, ElenaUNSPECIFIED
Sauerhering, JörgUNSPECIFIED
Angel, StefanieRWTH Institut für Eisenhüttenkunde
Fend, ThomasUNSPECIFIED
Pitz-Paal, RobertUNSPECIFIED
Date:25 April 2008
Journal or Publication Title:Journal of Fluids Engineering
Volume:130
DOI:10.1115/1.2907419
Status:Published
Keywords:Permeability, Inertial Coefficient, Metal Foams
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 Technical Thermodynamics > Solar Research
Deposited By: Dr.-Ing. Thomas Fend
Deposited On:28 Jul 2008
Last Modified:12 Dec 2013 20:30

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