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EVALUATION OF EFFECTIVE THERMAL CONDUCTIVITY OF FIBROUS HEAT INSULATING MATERIALS EXPOSED TO VARIOUS OUTSIDE CONDITIONS.

[In Japanese. / En japonais.]

Author(s) : INABA H., SEKI N., FUKUSAKO S.

Type of article: Article

Summary

FIBROUS INSULATING MATERIALS PACKED BETWEEN THE BUILDING WALLS HAVE BEEN EXPOSED TO VARIOUS SURROUNDING CONDITIONS IN THE ACTUAL OPERATION. THE EVALUATION OF INSULATING PERFORMANCE HAS BEEN PERFORMED ONLY BY THE SURROUNDING TEMPERATURE CONDITION. THE EFFECTIVE THERMAL CONDUCTIVITY WOULD CAUSE TO OVERESTIMATE THE INSULATING PERFORMANCE DUE TO THE OCCURRENCE OF NATURAL CONVECTION AND THE MIXTURE OF MOIST AIR IN THE FIBROUS INSULATING MATERIALS. THE PAPER CLARIFIED EXPERIMENTALLY THE CONDUCTIVITY OF FIBROUS MATERIALS EXPOSED TO VARIOUS SURROUNDING CONDITIONS. IT WAS CONCLUDED THAT THE EFFECTIVE THERMAL CONDUCTIVITY PUT INTO PRACTICAL USE WAS NOT AVAILABLE FOR MANY PRACTICAL DESIGNS WHEN THE NATURAL CONVECTION DEPENDING ON VARIOUS SURROUNDING CONDITIONS OCCURRED IN THE FIBROUS INSULATING MATERIALS.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1983-0926
  • Languages: Japanese
  • Source: Refrigeration - vol. 57 - n. 657
  • Publication date: 1982
  • Document available for consultation in the library of the IIR headquarters only.

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