Paper Title:
Moisture Effective Diffusivity in Porous Media with Different Physical Properties
  Abstract

In the drying of porous media, the mass transport occurs in the pores as well as on the surface of the solid. The mechanisms involved can take place simultaneously, influenced by the predominant one and can change depending on the moisture content. In this work, the moisture effective diffusivity was estimated in solids with distinct structural properties in order to verify the predominant mechanisms according to the moisture content, analyzing the influence of the physical properties. The materials studied were NaY Zeolite, Kaolin, Silica and Alumina. The results of diffusion coefficient present a minimum at low moisture content that can be related to pore size.

  Info
Periodical
Defect and Diffusion Forum (Volumes 258-260)
Edited by
Andreas Öchsner and José Grácio
Pages
207-212
DOI
10.4028/www.scientific.net/DDF.258-260.207
Citation
M. M.N.N., M.A. Silva, "Moisture Effective Diffusivity in Porous Media with Different Physical Properties", Defect and Diffusion Forum, Vols. 258-260, pp. 207-212, 2006
Online since
October 2006
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Price
$35.00
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