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Modeling heat and moisture transfer through fibrous insulation with phase change and mobile condensates. (English) Zbl 1006.76574
Summary: This paper reports on a transient model of coupled heat and moisture transfer through fibrous insulation, which for the first time takes into account of evaporation and mobile condensates. The model successfully explained the experimental observations of Farnworth [Tex. Res. J. 56 (1986) 653], and the numerical results of the model were found to be in good agreement with the experimental results of a drying test. Based on this model, numerical simulation was carried out to better understand the effect of various material and environmental parameters on the heat and moisture transfer. It was found that the initial water content and thickness of the fibrous insulation together with the environmental temperature are the three most important factors influencing the heat flux.

76T10Liquid-gas two-phase flows, bubbly flows
76M20Finite difference methods (fluid mechanics)
80A20Heat and mass transfer, heat flow
80A22Stefan problems, phase changes, etc.
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