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Separation of moisture flow through porous building materials into vapour and liquid components.

Author(s) : GALBRAITH G. H., TAO Z., MCLEAN R. C.

Type of article: Article

Summary

A significant international effort is taking place to develop combined heat and mass transfer models which will enable more accuracy. However, the universal solution of the defining equations requires the separation of the total moisture flow into its liquid and vapour components. Until now this has not been possible. The paper presents an analytical and experimental procedure which allows the transport parameters defining liquid and vapour flow to be described for any given material as functions of relative humidity. Such information allows for a complete model solution without recourse to questionable assumptions regarding the initiation of capillary condensation.

Details

  • Original title: Separation of moisture flow through porous building materials into vapour and liquid components.
  • Record ID : 1994-1683
  • Languages: English
  • Source: Build. Serv. Eng. Res. Technol. - vol. 14 - n. 3
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.

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