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The influence of confining walls on the pressure drop in packed beds

Eisfeld, B. and Schnitzlein, K. (2001) The influence of confining walls on the pressure drop in packed beds. Chemical Engineering Science, 56, pp. 4321-4329.

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Abstract

The influence of the container walls on the pressure drop of packed beds is investigated. A detailed analysis of more than 2300 experimental data points reveals the Reynolds number dependence of this effect. Physical evidence is given that the observed behavior is caused by the counteracting effects of the wall friction and the increased porosity near external boundaries. A comparison of the predictions of 24 published pressure drop correlations with available experimental data shows that Reichelt's approach (Chem. Ing. Tech. 44 (1972) 1068) of correcting the Ergun equation for the wall effect is the most promising one. Improved correlations are obtained for different types of packings by fitting the coefficients of that equation to the database.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2005,
Title:The influence of confining walls on the pressure drop in packed beds
Authors:
AuthorsInstitution or Email of Authors
Eisfeld, B.UNSPECIFIED
Schnitzlein, K.Technische Universität Cottbus
Date:2001
Journal or Publication Title:Chemical Engineering Science
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:56
Page Range:pp. 4321-4329
Status:Published
Keywords:Packed beds, Pressure drop, Wall effect, Data analysis, Physical explanation, Correlation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:52

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