Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12500
Title: Effects of pore size distribution and fiber diameter on the coupled heat and liquid moisture transfer in porous textiles
Authors: Zhu, Q
Li, Y 
Issue Date: 2003
Publisher: Pergamon Press
Source: International journal of heat and mass transfer, 2003, v. 46, no. 26, p. 5099-5111 How to cite?
Journal: International journal of heat and mass transfer 
Abstract: The pore size distribution and the fiber diameter on the coupled heat and liquid moisture transfer in porous textiles are investigated to reveal the mechanisms of the coupling effects. This paper focuses on a theoretical investigation of the coupling mechanism of heat transfer and liquid moisture diffusion in porous textiles by using an improved mathematical model. In this model, the pore size distribution is assumed to be a cubic-polynomial distribution, which is close to the experimental measurements [Text. Res. J. 56 (1) (1986) 35]. The liquid diffusion behavior in porous textiles can be described as a diffusion equation. The improved diffusion coefficient can be expressed as: [for formular please refer to the text]. For comparison, two types of pore distribution and the fiber diameter in the porous textiles are discussed. With specification of initial and boundary conditions, the distributions of the temperature, moisture concentration, and liquid water content in the porous textiles can be numerically computed. The comparison with the experimental measurements shows the superiority of this new model in resolving the coupled heat and liquid moisture transfer in porous textiles. The results illustrate that the heat transfer process is influenced by the pore size distribution and fiber diameter of the porous textiles.
URI: http://hdl.handle.net/10397/12500
ISSN: 0017-9310
EISSN: 1879-2189
DOI: 10.1016/S0017-9310(03)00370-3
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