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Author(s): J. M. P. Q. Delgado
João R. F. Guedes de Carvalho
Title: Effect of fluid properties on dispersion in flow through packed beds
Issue Date: 2003
Abstract: An experimental study is described on the effect of liquid properties on axial dispersion in packed beds. Working with water between 278 and 373 K, the range 57 < Sc < 1, 930 was covered, and this represents a significant fraction of the domain located between what is traditionally considered "gas behavior" (that is, Sc congruent to 1) and "liquid behavior" (typically, Sc > 600). A representation of Pe(L) vs. Pe(m) reveals the existence of a very flat minimum (typically 10(2) < Pe(m) < 10(4)) for each value of Sc. The value of the minimum is almost insensitive to variations in Sc, for Sc > 700, but it increases significantly with a decrease in Sc, for Sc < 700. The experimental data used to test available correlations for predicting D-L show that they are inaccurate over considerable ranges of the variables.
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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