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ENHANCEMENT OF IN-TUBE CONDENSATION OF NON-AZEOTROPIC REFRIGERANT MIXTURES WITH A MICRO-FIN TUBE.

Author(s) : KOYAMA S., GAO L., FUJII T.

Summary

CONDENSATION HEAT TRANSFER AND PRESSURE DROP CHARACTERISTICS OF NON-AZEOTROPIC REFRIGERANT MIXTURES OF R22 AND R114 ARE EXPERIMENTALLY INVESTIGATED INSIDE HORIZONTAL SMOOTH AND MICRO-FIN TUBES. IN THE CASE OF THESE MIXTURES, THE DECREASE OF NUSSELT NUMBER DUE TO MASS TRANSFER RESISTANCE IS OBSERVED FOR THE MICRO-FIN TUBE AS WELL AS FOR THE SMOOTH TUBE. THE VAPOR MASS TRANSFER COEFFICIENT OF THE MIXTURES IS EVALUATED. COMPARISON OF FRICTIONAL PRESSURE DROP FOR BOTH TUBES IS ALSO DONE.

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Pages: 439-443

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Details

  • Original title: ENHANCEMENT OF IN-TUBE CONDENSATION OF NON-AZEOTROPIC REFRIGERANT MIXTURES WITH A MICRO-FIN TUBE.
  • Record ID : 1992-1577
  • Languages: English
  • Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
  • Publication date: 1991/08/10
  • Document available for consultation in the library of the IIR headquarters only.

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