Experimental investigation of flow and forced convection heat transfer, in fully filled rectangular duct using porous media

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dc.contributor.author Shokouhmand, H.
dc.contributor.author Emami, S.M.
dc.date.accessioned 2015-04-24T09:59:22Z
dc.date.available 2015-04-24T09:59:22Z
dc.date.issued 2012
dc.description.abstract Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012. en_ZA
dc.description.abstract An experimental study was performed to investigate the heat transfer characteristics of the convection flow through a rectangular air duct with aspect ratio of 10 (a/b=10) which is filled with metallic porous materials. All four walls of the duct are subjected to a constant and uniform heat flux. The Reynolds number based on the hydraulic diameter has been kept between 500-2000 in order to ensure the laminar flow through the duct. The effect of different parameters such as variable porosity and density of porous layers have been investigated. For different porous layers configuration, heat flux at the walls, wall temperatures and air mass flow rate has been measured and the Nusselt number has been calculated. The results are compared with the clear flow case where no porous material was used. It can be concluded that higher heat transfer rates can be achieved in porous media flow case at the expense of a reasonable pressure drop. Based on the experimental data new empirical correlations for both Nusselt number and friction factor have also been developed for such air duct, which gives a good agreement between predicted values and experimental values of Nusselt number and friction factor. en_ZA
dc.description.librarian dc2014 en_ZA
dc.format.extent 6 pages en_ZA
dc.format.medium PDF en_ZA
dc.identifier.citation Shokouhmand, H & Emami, SM 2012, Experimental investigation of flow and forced convection heat transfer, in fully filled rectangular duct using porous media, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012. en_ZA
dc.identifier.isbn 9781868549863
dc.identifier.uri http://hdl.handle.net/2263/44817
dc.language.iso en en_ZA
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_ZA
dc.relation.ispartof HEFAT 2012 en_US
dc.rights University of Pretoria en_ZA
dc.subject Heat transfer characteristics en_ZA
dc.subject Convection flow en_ZA
dc.subject Rectangular air duct en_ZA
dc.subject Metallic porous materials en_ZA
dc.subject Heat flux en_ZA
dc.subject Laminar flow en_ZA
dc.subject Variable porosity en_ZA
dc.subject Air mass flow rate en_ZA
dc.title Experimental investigation of flow and forced convection heat transfer, in fully filled rectangular duct using porous media en_ZA
dc.type Presentation en_ZA


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