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Simultaneous heat and moisture transfer in fiberglass insulation with transient boundary conditions.

Author(s) : SIMONSON C. J., TAO Y. X., BESANT R. W.

Summary

The coupled problem of heat and vapour diffusion within porous fiberglass insulation materials is considered under transient conditions of heat conduction and water vapour adsorption/desorption, condensation and frosting. A special laboratory test facility is described for measuring transient, one-dimensional temperature, heat flux and moisture accumulation for a range of cold-plate temperature near 10 down to -20 deg C and warm-side relative humidities from 35 to 90%. The measured boundary conditions were used as input conditions for a numerical model. The simulation results compared well with measured data.

Details

  • Original title: Simultaneous heat and moisture transfer in fiberglass insulation with transient boundary conditions.
  • Record ID : 1997-2062
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1996/02/16
  • Document available for consultation in the library of the IIR headquarters only.

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