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EVAPORATIVE HEAT TRANSFER, PRESSURE DROP AND CRITICAL HEAT FLUX IN A SMALL VERTICAL TUBE WITH R113.

Author(s) : LAZAREK G. M., BLACK S. H.

Type of article: Article

Summary

THE EXPERIMENTS INCLUDE VERTICAL, CO-CURRENT UPFLOW AND DOWNFLOW CONFIGURATIONS. A CORRELATION FOR THE LOCAL HEAT TRANSFER COEFFICIENT IS PRESENTED WHICH EXPRESSES THE NUSSELT NUMBER AS A FUNCTION OF THE LIQUID REYNOLDS NUMBER AND BOILING NUMBER. PRESSURE DROP DATA FOR FRICTIONAL, SPATIAL ACCELERATION AND 180 DEG BEND LOSSES WERE SUCCESSFULLY CORRELATED BY EMPLOYING SLIGHT MODIFICATIONS TO COMMONLY ACCEPTED TWO-PHASE TECHNIQUES REPORTED IN THE LITERATURE. A NEW CRITICAL HEAT FLUX CORRELATION, APPLICABLE TO LOW REDUCED PRESSURE CONDITIONS, IS DEVELOPED WHICH PREDICTS THE VAPOUR QUALITY AT DRYOUT IN TERMS OF MASS VELOCITY, INLET SUBCOOLING AND HEATED LENGTH.

Details

  • Original title: EVAPORATIVE HEAT TRANSFER, PRESSURE DROP AND CRITICAL HEAT FLUX IN A SMALL VERTICAL TUBE WITH R113.
  • Record ID : 1983-0915
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 25 - n. 7
  • Publication date: 1982/07

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