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FORCED CONVECTIVE CONDENSATION OF A BINARY MIXTURE OF VAPOURS.

Author(s) : HIJIKATA K., HIMENO N., GOTO S.

Type of article: Article

Summary

THE CHARACTERISTICS OF THE FORCED CONVECTIVE CONDENSATION OF A BINARY MIXTURE OF R113-R114 VAPOURS ON A VERTICAL TUBE WERE EXPERIMENTALLY INVESTIGATED UNDER THE CONDITION OF REYNOLDS NUMBERS HIGHER THAN 1,300 AND LOWER THAN 9,300. ONE SMOOTH TUBE AND 3 KINDS OF FINNED TUBES WERE USED. THE HEAT TRANSFER COEFFICIENT IN THE SMALL TEMPERATURE-DIFFERENCE REGION WAS COMPARED WITH THE THEORETICAL RESULTS. IN THE SMALL BULK-TO-WALL TEMPERATURE-DIFFERENCE REGION, THIS COEFFICIENT, ESPECIALLY FOR A HIGH-PERFORMANCE FINNED TUBE, WAS REDUCED MARKEDLY BY THE THERMAL RESISTANCE OF THE DIFFUSION LAYER. IN THE LARGE BULK-TO-WALL TEMPERATURE-DIFFERENCE REGION, THE REDUCTION OF THE COEFFICIENT DECREASED AND WAS ALMOST INDEPENDENT OF THE VAPOUR FLOW VELOCITY.

Details

  • Original title: FORCED CONVECTIVE CONDENSATION OF A BINARY MIXTURE OF VAPOURS.
  • Record ID : 1988-1367
  • Languages: English
  • Source: JSME int. J. - vol. 30 - n. 270
  • Publication date: 1987/12
  • Document available for consultation in the library of the IIR headquarters only.

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