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Viscosities for R22 alternatives and their mixtures with a lubricant oil.

Author(s) : GELLER V. Z., PAULAITIS M. E., BIVENS D. B., YOKOZEKI A.

Summary

Viscosities for pure liquid refrigerants R32, R125, R134a, and R143a, as well as their mixtures with a synthetic polyolester lubricant oil, have been measured. Measurements for the refrigerant-lubricant mixtures were made over a temperature range from 20 to 80 deg C and a range of oil mass fractions from 0.5 to 1. A modified capillary tube method was used for all measurements. The accuracy of measured viscosities is estimated to be more or less 1.2% and more or less 1.8% for pure refrigerants and for refrigerant-oil mixtures, respectively. Correlations for calculating the viscosity of saturated liquid refrigerants were developed. A method has also been proposed to calculate viscosities of refrigerant-oil mixtures on the basis of pure component data alone.

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Format PDF

Pages: 49-54

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Details

  • Original title: Viscosities for R22 alternatives and their mixtures with a lubricant oil.
  • Record ID : 1995-0739
  • Languages: English
  • Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
  • Publication date: 1994/07/19

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