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A STUDY OF BINARY MIXTURE BOILING: BOILING SITE DENSITY AND SUBCOOLED HEAT TRANSFER.

Author(s) : HUI T. O., THOME J. R.

Type of article: Article

Summary

BOILING SITE DENSITIES AND HEAT TRANSFER COEFFICIENTS HAVE BEEN MEASURED FOR ETHANOL-WATER AND ETHANOL-BENZENE MIXTURES AT 1.01 BAR FOR A HEATED VERTICAL BRASS DISK. THE BOILING HEAT TRANSFER COEFFICIENT WAS FOUND TO DECREASE WITH INCREASING SUBCOOLING, BUT FOR THE MIXTURES AT A GIVEN LEVEL OF SUBCOOLING THE DECREASE WAS LESS THAN THAT FOR THE SINGLE COMPONENTS AND AZEOTROPIC MIXTURES. THE HEAT TRANSFER COEFFICIENT AT A GIVEN HEAT FLUX WAS SEEN TO BE QUITE INSENSITIVE TO THE VERY LARGE INCREASE IN BOILING SITE DENSITY IN COMPARING WITH THE PURE WATER AND THE ETHANOL-WATER AZEOTROPE RESULTS, LEADING ONE TO QUESTION POOL BOILING MODELS THAT PREDICT HEAT TRANSFER RATES ON THE BASIS OF BOILING SITE DENSITY.

Details

  • Original title: A STUDY OF BINARY MIXTURE BOILING: BOILING SITE DENSITY AND SUBCOOLED HEAT TRANSFER.
  • Record ID : 1986-0079
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 28 - n. 5
  • Publication date: 1985

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