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EFFECT OF VAPOUR VELOCITY ON FILM CONDENSATION OF R113 ON HORIZONTAL TUBES IN A CROSSFLOW.

Author(s) : HONDA H.

Type of article: Article

Summary

FILM CONDENSATION OF DOWNWARD FLOWING R113 VAPOUR AT NEAR ATMOSPHERIC PRESSURE ON SINGLE HORIZONTAL TUBES WAS STUDIED EXPERIMENTALLY OVER WIDE RANGES OF VAPOUR VELOCITY AND CONDENSATION TEMPERATURE DIFFERENCE. THREE FLOW REGIMES: SMOOTH SURFACE, TWO-DIMENSIONAL WAVES AND THREE-DIMENSIONAL WAVES, WERE OBSERVED. THE PRESENT AND EARLIER HEAT TRANSFER RESULTS FOR R113 AND R21 WERE COMPARED WITH THE LAMINAR TWO-PHASE BOUNDARY-LAYER THEORY. THE POINT ATDEVIATION FROM THE THEORETICAL PREDICTION WAS FOUND TO BE DEPENDENT ON A DIMENSIONLESS NUMBER WHICH GAVE A TRANSITION CRITERION BETWEEN SMOOTH AND WAVY CONDENSATE SURFACES.

Details

  • Original title: EFFECT OF VAPOUR VELOCITY ON FILM CONDENSATION OF R113 ON HORIZONTAL TUBES IN A CROSSFLOW.
  • Record ID : 1986-2227
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 29 - n. 3
  • Publication date: 1986

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