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In-tube evaporation and condensation of refrigerant-lubricant mixtures of HFC-134a and CFC-12.

Author(s) : ECKELS S. J., PATE M. B.

Summary

In-tube heat transfer coefficients and pressure drops were experimentally determined for evaporation and condensation of R134a and R12. These measurements were performed for refrigerant-lubricant mixtures ranging from 0 to 5.4% lubricant concentrations. Evaporation tests were performed at 5 deg C and condensation tests at 40 deg C. The tests were conducted in a 3.67 meters long smooth tube with an inside diameter of 8.0 millimeters. Results are given.

Details

  • Original title: In-tube evaporation and condensation of refrigerant-lubricant mixtures of HFC-134a and CFC-12.
  • Record ID : 1993-0814
  • Languages: English
  • Publication date: 1991
  • Source: Source: ASHRAE Trans.
    vol. 97; n. 2; 62-70; 17 fig.; 2 tabl.; 12 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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