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The characteristics of expressions on evaporative heat loss from skin surface and an equi-skin temperature line with various value of wettedness on it.

[In Japanese. / En japonais.]

Author(s) : MOCHIDA T., et al.

Type of article: Article

Summary

Three expressions are studied: the product of quantity of evaporation and the latent heat, the product of the difference between the mean humidity at the skin surface and the humidity in the ambient air, and the evaporative heat transfer coefficient, the product of the difference between saturated humidity at the skin surface and the environmental air humidity, and both the evaporative heat transfer coefficient and wettedness. As a result, it became clear that all the lines of equi-skin temperature change linearly on a psychrometric chart and the slope of the skin temperature lines with equi-mean skin humidity is most gentle, and that with equi-wettedness comes second and that with equi-evaporation is most steep. From the analysis of the experimental data obtained, the authors found the wettedness value changeable and that there are the maximum and the minimum wettedness at each constant average skin temperature, and derived theoretically a curved equi-skin temperature line including the above-mentioned characteristics of wettedness.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1992-2930
  • Languages: Japanese
  • Source: Transaction of the Society of Heating, Air-conditioning and Sanitary Engineers of Japan - n. 48
  • Publication date: 1992/02
  • Document available for consultation in the library of the IIR headquarters only.

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