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INVESTIGATIONS OF LIQUID FLASHING AND EVAPORATION DUE TO SUDDEN DEPRESSURIZATION.

Author(s) : PETERSON R. J., GREWAL S. S., WAKIL M. M. el-

Type of article: Article

Summary

THE THERMAL-HYDRAULIC RESPONSE OF A QUIESCENT LIQUID (R 11) LAYER TO SUDDEN DEPRESSURIZATION WAS EXAMINED. THE DEGREES OF DEPRESSURIZATION WERE SUCH THAT THE LIQUID BULK BECAME SUPERHEATED AND FLASHING OCCURRED. RECORDINGS OF A SUCCESSION OF INTERFEROGRAMS OF THE FLASHING LIQUID SHOWED A MIXTURE OF SUPERHEATED, SATURATED, AND SUBCOOLED LIQUID. SUBCOOLING CORRESPONDED TO THE SATURATION TEMPERATURE AT APPROXIMATIVELY TWICE THE PRESSURE DROP. LIQUID SUPERHEATS UP TO 5.7 K AND SUBCOOLING AS MUCH AS 9.2 K BELOW SATURATION WERE NOTED. EXPERIMENTS CONDUCTED TO DETERMINE MASS TRANSFER UNDER FLASHING CONDITIONS SHOWED MASS TRANSFER RATES DURING FLASHING TO BE 10-12 TIMES THOSE DUE TO EVAPORATION ALONE. AN EMPIRICAL FLASHING FACTOR IS DEFINED AS THE RATIO OF THE MASS TRANSFER FOUND IN FLASHING AND IN EVAPORATION.

Details

  • Original title: INVESTIGATIONS OF LIQUID FLASHING AND EVAPORATION DUE TO SUDDEN DEPRESSURIZATION.
  • Record ID : 1985-0089
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 27 - n. 2
  • Publication date: 1984/02

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