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CONDENSATION OF NON-AZEOTROPIC REFRIGERANT BLENDS OF R114 AND R113 IN A HORIZONTAL ANNULUS WITH AN ENHANCED INNER TUBE.

[In Japanese. / En japonais.]

Author(s) : NOZU S.

Type of article: Article

Summary

THE INNER TUBE WAS A CORRUGATED TUBE WITH SOLDERED WIRE FINS ON THE OUTER SURFACE. THE OUTER TUBE WAS A SMOOTH TUBE. THE FRICTIONAL-PRESSURE GRADIENT DATA WERE CORRELATED FAIRLY WELL BY AN EMPIRICAL EQUATION, REPORTED IN A PREVIOUS PAPER, FOR THE CONDENSATION OF PURE R11 AND R113. THE DOUBLE TUBE SHOWED A SIGNIFICANT HEAT TRANSFER ENHANCEMENT OVER TYPICAL SMOOTH-TUBE VALUES. A DIMENSIONLESS CORRELATION FOR THE VAPOUR-PHASE MASS-TRANSFER COEFFICIENT WAS DERIVED, WHERE THE DIMENSIONLESS PARAMETERS FOR FORCED-CONVECTION CONDENSATION FROM A VAPOUR-GAS MIXTURE FLOWING NORMAL TO A CYLINDERWERE EXTENDED TO THE CASE OF NON-AZEOTROPIC REFRIGERANT BLENDS.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1991-0599
  • Languages: Japanese
  • Source: Trans. JAR - vol. 6 - n. 1
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

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