Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24948
Title: Thermal energy transport within porous polymer materials : effects of fiber characteristics
Authors: Wu, H
Fan, J
Du, N
Keywords: Fibers
Modeling
Polyesters
Radiation
Thermal properties
Issue Date: 2007
Publisher: John Wiley & Sons
Source: Journal of applied polymer science, 2007, v. 106, no. 1, p. 576-583 How to cite?
Journal: Journal of applied polymer science 
Abstract: A theoretical model integrating the radiative and conductive heat transfer is presented and applied to evaluate the thermal energy transport within porous polymer materials. The model was first validated by comparing the computed thermal energy flux with the experimental measurements of two porous polymer materials made of wool and polyester. The model was then used to predict the effects of the polymer fiber characteristics (viz. fiber fractional volume, fiber emissivity, fiber radius, and fiber thermal conductivity) on the thermal energy flux within the porous polymer materials. It was found that decreasing fiber radius would significantly reduce the total thermal energy flux through the porous polymer materials, whereas increasing fibre emissivity or decreasing the thermal conductivity would cause a just slight reduction of the total thermal energy flux. The fiber fractional volume had a significant influence on the thermal energy flux, and thereby the fiber fractional volume can be optimized in view of improving the thermal insulating performance of the porous polymer materials.
URI: http://hdl.handle.net/10397/24948
ISSN: 0021-8995
EISSN: 1097-4628
DOI: 10.1002/app.26603
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