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Heat Transfer Through Moist Porous Media

  • Anna M. Schneider
  • H. J. Goldsmid
  • B. N. Hoschke

Abstract

A transient technique has been used to measure the effective thermal conductivity of polyurethane foam containing various amounts of water. In this three-phase porous material, it was observed that the conductivity increases with water content, but not linearly. A model of heat and mass transfer based on (1) conduction, (2) infra-red radiation, and (3) the process of evaporation of water, diffusion of water vapour through the structure and condensation both in the structure and externally has been developed to predict the effective thermal conductivity in this material.

Keywords

Heat Transfer Heat Flux Heat Flow Heat Sink Polyurethane Foam 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature Cited

  1. 1.
    A.M. Schneider, B.N. Hoschke, and H.J. Goldsmid, Measurements of thermal conductivity of textile fabrics, Paper presented at The 19th International Thermal Conductivity Conference, Tennessee Technological University, Cookeville, Tennessee 38505, U.S.A., October 20–23, (1985).Google Scholar
  2. 2.
    W.J. Roff, and J.R. Scott, Fibres, films, plastics and rubbers, Butterworth, London, (1971).Google Scholar
  3. 3.
    A.M. Schneider, Heat transfer through moist fabrics, PhD thesis, School of Physics, The University of New South Wales, (1987).Google Scholar
  4. 4.
    I.M. Stuart, and B.V. Holcombe, Heat transfer through fiber beds by5. B.V. Holcombe, The influence of infra-red radiation on heat transfer through fibrous assemblies, in preparation.Google Scholar
  5. 5.
    B.V. Holcombe, The influence of infra-red radiation on heat transfer through fibrous assemblies, in preparation.Google Scholar
  6. 6.
    B.V. Holcombe, and I.M. Stuart, Method of numerical solution of equations describing heat transfer in fibrous beds., J. Therm. Insul. 7: 214 (1984).Google Scholar
  7. 7.
    A.M. Schneider, B.N. Hoschke, and H.J. Goldsmid, Heat transfer through moist fabrics, in preparation.Google Scholar
  8. 8.
    J. Schuhmeister, Ber. K. Akad. Wiss., Wien. Math.- Naturwiss. Klasse, 76: 283 (1877).Google Scholar

Copyright information

© Purdue Research Foundation 1989

Authors and Affiliations

  • Anna M. Schneider
    • 1
  • H. J. Goldsmid
    • 2
  • B. N. Hoschke
    • 1
  1. 1.CSIRO Division of Textile PhysicsRydeAustralia
  2. 2.School of PhysicsUniversity of New South WalesKensingtonAustralia

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