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Thermographic Estimation of the Effective Heat Exchange Area Between a Subject and Substrate

  • A. Solon
  • W. Stepniewski
  • K. Cena

Abstract

Two classic methods have been used for evaluating the area of heat exchange between a subject and substrate. Kelly et all proposed to measure the animal-floor contact area by simply drawing the animal’s contour. Grommers et al2 photographed, from the underside, the subject reclining on a transparent ‘perspex’ panel. The contact area was then determined by planimetry. Neither of these methods allows direct estimation of the area of heat exchange because it is impossible to define the proportion of contour area which exchanges heat. Furthermore, Grommers’ method assumes that heat is exchanged by conduction only.

Keywords

Contact Area Heat Exchange Conductive Heat Transfer Effective Contact Contour Area 
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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References

  1. 1.
    C. F. Kelly, FI. Heitman Jr., J. R. Morris, Effect of environment on the heat loss from swine, Agr. Eng. 29: 525–528 (1948).Google Scholar
  2. 2.
    F. J. Grommers, G. I. Christison, S. E. Curtis, Estimating animal-floor contact area, J. Animal Sci. 30: 552–555 (1970).Google Scholar
  3. 3.
    W. Stepniewski, Ph.D Thesis, Technical University of Wroclaw, (1982).Google Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • A. Solon
    • 1
  • W. Stepniewski
    • 1
  • K. Cena
    • 2
  1. 1.Technical University of WroclawWroclawPoland
  2. 2.Occupational Health ProgramMcMaster UniversityHamiltonCanada

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