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Experimental results for the VLE of the ternary mixtures HFC134a-HFC125-HFC32 and HFC134a-HFC143a/HFC125.

Author(s) : KLEEMISS M., BAEHR H. D.

Summary

Experimental results for the vapour-liquid-equilibrium (VLE) of the ternary mixtures R134a-R125-R32 and R134a-R143a/R125 are presented. First, the five equimolar binary mixtures were examined at temperatures between 30 deg C and the critical temperature of the respective mixture. Using a cubic equation of state, it is possible to describe the binary mixtures with deviations less than 0.5%. Using the interaction coefficients obtained for the binary systems, the VLE of both the ternary mixtures can be calculated. To check these results, VLE-data of five ternary mixtures with different compositions were measured. The vapour-pressures are predicted with deviations less than 0.6% without using a ternary interaction coefficient.

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Pages: 345-352

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Details

  • Original title: Experimental results for the VLE of the ternary mixtures HFC134a-HFC125-HFC32 and HFC134a-HFC143a/HFC125.
  • Record ID : 1996-1425
  • Languages: English
  • Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
  • Publication date: 1995/08/20

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