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Capillary network models for transport in packed beds: Considerations of pore aspect ratio

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Field Value
 
Title Capillary network models for transport in packed beds: Considerations of pore aspect ratio
 
Creator BHATIA, SK
 
Subject fluid-solid reactions
porous-media
diffusion
pore network
diffusion
packed bed
aspect ratio
porous media
 
Description The conventional analysis for the estimation of the tortuosity factor for transport in porous media is modified here to account for the effect of pore aspect ratio. Structural models of the porous medium are also constructed for calculating the aspect ratio as a function of porosity. Comparison of the model predictions with the extensive data of Currie (1960) for the effective diffusivity of hydrogen in packed beds shows good agreement with a network model of randomly oriented intersecting pores for porosities upto about 50 percent, which is the region of practical interest. The predictions based on this network model are also found to be in better agreement with the data of Currie than earlier expressions developed for unconsolidated and grainy media.
 
Publisher GORDON BREACH SCI PUBL LTD
 
Date 2011-07-30T09:54:49Z
2011-12-26T12:52:47Z
2011-12-27T05:39:41Z
2011-07-30T09:54:49Z
2011-12-26T12:52:47Z
2011-12-27T05:39:41Z
1996
 
Type Article
 
Identifier CHEMICAL ENGINEERING COMMUNICATIONS, 154(), 183-202
0098-6445
http://dx.doi.org/10.1080/00986449608936651
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7928
http://hdl.handle.net/10054/7928
 
Language en