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HEAT TRANSFER IN POLYURETHANE FOAMS FOR COLD INSULATION.

Author(s) : BOETES R., HOOGENDOORN C. J.

Summary

A PHYSICAL MODEL TO CALCULATE CONDUCTIVE AND RADIATIVE HEAT TRANSFER IN FOAMS FOR THERMAL INSULATION HAS BEEN DEVELOPED. IN THIS A STRUT-WINDOW MODEL OF A CLOSED CELL FOAM HAS BEEN USED TO CHARACTERIZE THE FOAM. SUPPORTED BYMEASUREMENTS OF THERMAL CONDUCTIVITY AND THERMAL RADIATION PROPERTIES OF CLOSED CELL POLYURETHANE FOAMS AN OPTIMIZATION TO REACH LOW CONDUCTIVITY VALUES HAS BEEN DONE. USING R11 IN THE CELLS A LOW VALUE OF 0. 014 W/M.K CAN BE REACHED. THERADIATION CONTRIBUTING FOR ABOUT 30% IN THIS VALUE. ATTENTION HAS BEEN GIVEN TO AGING PHENOMENA.

Details

  • Original title: HEAT TRANSFER IN POLYURETHANE FOAMS FOR COLD INSULATION.
  • Record ID : 1988-1348
  • Languages: English
  • Publication date: 1986/09/01
  • Source: Source: Proc. int. Symp. Heat Mass Transf. Refrig. Cryog., Dubr.
    14-31; 6 fig.; 3 tabl.; 12 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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