Wall effect on pressure drop in packed beds.

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Wall effect on pressure drop in packed beds.

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dc.contributor.author Cheng, Nian-Sheng
dc.date.accessioned 2012-03-22T01:00:18Z
dc.date.available 2012-03-22T01:00:18Z
dc.date.copyright 2011
dc.date.issued 2012-03-22
dc.identifier.citation Cheng, N. S. (2011). Wall effect on pressure drop in packed beds. Powder Technology, 210(3), 261-266.
dc.identifier.issn 0032-5910
dc.identifier.uri http://hdl.handle.net/10220/7653
dc.description.abstract The wall effect on the pressure drop in packed beds could be considered by modifying the Ergun equation based on the concept of hydraulic radius. However, the prediction of the two constants involved in the modified Ergun equation, if using the correlations available in the literature, could differ significantly from one another, and all correlations are not applicable for very low bed-to-particle diameter ratios. In this study, a capillary-type model is proposed to be composed of a bundle of capillary tubes subject to a series of local energy losses, the latter being simulated in terms of sphere drag. The formulas derived provide a good description of variations in the two constants for bed-to-particle diameter ratios ranging from 1.1 to 50.5.
dc.format.extent 5 p.
dc.language.iso en
dc.relation.ispartofseries Powder technology
dc.rights © 2011 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Powder Technology, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.powtec.2011.03.026].
dc.subject DRNTU::Engineering::Civil engineering::Water resources.
dc.title Wall effect on pressure drop in packed beds.
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1016/j.powtec.2011.03.026
dc.description.version Accepted version

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