Theoretical prediction of effective heat transfer parameters in packed beds

Authors

  • Anthony G. Dixon,

    1. Systems Engineering Group, E.T.H.-Zentrum, CH-8092 Zurich, Switzerland
    Current affiliation:
    1. Mathematics Research Center, University of Wisconsin, Madison, Wisconsin 53706
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  • David L. Cresswell

    Corresponding author
    1. Systems Engineering Group, E.T.H.-Zentrum, CH-8092 Zurich, Switzerland
    • Systems Engineering Group, E.T.H.-Zentrum, CH-8092 Zurich, Switzerland
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Abstract

A theory for predicting the effective axial and radial thermal conductivities and the apparent wall heat transfer coefficient for fluid flow through packed beds is derived from a two-phase continuum model containing the essential underlying and independently measurable heat transfer processes. The theory is shown to explain much of the confused literature and pinpoints the remaining major areas of uncertainty, further investigation of which is needed before secure prediction is possible.

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