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Simulation of heat and moisture transfer with phase change and mobile condensates in fibrous insulation.

Author(s) : CHENG X., FAN J.

Type of article: Article

Summary

Numerical simulation has been reported on for an improved model of coupled heat and moisture transfer with phase change and mobile condensates in fibrous insulation. The new model considers the moisture movement induced by the partial water vapour pressure, a super saturation state in condensing region as well as the dynamic moisture absorption of fibrous materials and the movement of liquid condensates. Based on simulation results, it has been found that moisture movement induced by the partial water vapour pressure, moisture diffusion, condensation, evaporation, and liquid water movement are the most important factors influencing the distribution of water content and heat loss. The results of the new model have been compared and found in good agreement with the experimental ones.

Details

  • Original title: Simulation of heat and moisture transfer with phase change and mobile condensates in fibrous insulation.
  • Record ID : 2004-2759
  • Languages: English
  • Source: International Journal of thermal Sciences - vol. 43 - n. 7
  • Publication date: 2004/07

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