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CRITICAL HEAT FLUX AND DROPLET ENTRAINMENT RATE IN BOILING OF FALLING LIQUID FILMS.

Author(s) : UEDA T., INOUE M., NAGATOME S.

Type of article: Article

Summary

MEASUREMENTS OF CRITICAL HEAT FLUX AND RATE OF DROPLET ENTRAINMENT DUE TO BUBBLE BURSTING ARE MADE WITH BOILING LIQUID FILMS (AND IN PARTICULAR WATER, R113, R11) FLOWING DOWNWARDS ON THE OUTSIDE SURFACE OF A UNIFORMLY HEATED VERTICAL TUBE. THE CRITICAL CONDITION OCCURS FIRST AT THE EXIT END OF THE HEATING SECTION. THE CRITICAL HEAT FLUX SHOWS THREE TYPES OF CHARACTERISTICS BY INCREASING THE LIQUID FILM FLOW RATE AT THE EXIT END OF THE HEATING SECTION. THE DATA ARE EXPRESSED IN TERMS OF THE FILM FLOW RATE AND THE FILM WEBER NUMBER AT THE EXIT END. THE RELATIONSHIP BETWEEN THE DROPLET ENTRAINMENT RATE AND THE EVAPORATION RATE OF THE FILM IS ALSO DISCUSSED.

Details

  • Original title: CRITICAL HEAT FLUX AND DROPLET ENTRAINMENT RATE IN BOILING OF FALLING LIQUID FILMS.
  • Record ID : 1982-0048
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 24 - n. 7
  • Publication date: 1981/07

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