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Journal of Porous Media
Impact-faktor: 1.49 5-jähriger Impact-Faktor: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Druckformat: 1091-028X
ISSN Online: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v7.i2.50
10 pages

Water Vapor Transfer through Textile under a Temperature and Humidity Gradient

Nada Nefzi
Laboratoire d'Etudes des Systemes Thermiques et Energetiques, Ecole Nationale d'Ingenieurs de Monastir, TUNISIA
Moez Jouini
Laboratoire d'Etudes des Systemes Thermiques et Energetiques, Ecole Nationale d'Ingenieurs de Monastir, TUNISIA
Sassi Ben Nasrallah
Laboratoire d'Études des Systèmes Thermiques et Énergétiques, Ecole Nationale d'Ingénieurs de Monastir, Monastir 5019 Tunisie

ABSTRAKT

Moisture movement in a porous medium is a process that occurs in many engineering applications. These include moisture movement in soils, nutrient uptake by plants, drying of food, and petroleum extraction. This process is also of special interest to the textile industry. The mechanisms of water vapor transmission through textile fabrics are not well known. The rate at which they are able to transmit water vapor is most often measured under standard textile testing conditions of 20° C and 65% relative humidity. The experiments described in this article are designed to measure the effect of the temperature and the humidity gradients on water vapor resistance of these fabrics. Experiments involve relative humidities of 40%, 50%, and 70% with the temperature held at a constant 30°C throughout and temperatures of 25, 30, and 35°C with the relative humidity held at a constant 50% throughout.