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HEAT TRANSFER CHARACTERISTICS OF AN INTERNAL MICROPOROUS TUBE WITH R22 UNDER EVAPORATING CONDITIONS.

Author(s) : IKEUCHI M.

Summary

THIS PAPER DESCRIBES THE RESULTS OF ENHANCEMENT IN HEAT TRANSFER WITH A TWO-PHASE FLOW OF R22 UNDER EVAPORATING CONDITIONS. TWO KINDS OF TUBE WERE TESTED: A TUBE WITH A MICROPOROUS INTERNAL SURFACE, MADE BY FIXING COPPER PARTICLES ON A SMOOTH COPPER SURFACE BY PLATING WITH COPPER, AND A SMOOTH-INNER-SURFACE TUBE INTO WHICH A MICROPOROUS, THIN PLATE FIN WAS INSERTED. THE HEAT TRANSFER COEFFICIENT OF THEMICROPOROUS TUBE IS 7.5 TIMES AS LARGE AS THAT OF A SMOOTH TUBE, AND THAT OF THE MICROPOROUS FINNED TUBE IS FROM 1. 65 TO 1.85 TIMES AS LARGE AS THAT OF A SMOOTH FINNED TUBE.

Details

  • Original title: HEAT TRANSFER CHARACTERISTICS OF AN INTERNAL MICROPOROUS TUBE WITH R22 UNDER EVAPORATING CONDITIONS.
  • Record ID : 1985-1881
  • Languages: English
  • Publication date: 1984
  • Source: Source: ASHRAE Trans.
    vol. 90; n. 1A; 196-211; 13 fig.; 1 tabl.; 7 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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