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Thermodynamic estimation method of ternary refrigerant mixtures using new mixing rules.

Author(s) : YOSHIDA Y., et al.

Type of article: Article

Summary

The paper proposes modified mixing rules of two-constant (a, b) cubic equation of state for ternary mixtures. The addition of a ternary interaction parameter to the mixing rule, occurring in conjunction with the parameter b, was examined in the calculation of thermodynamic properties in comparison with common mixing rules. The validity of new mixing rules was evaluated for R14-R23-R13, R13B1-R12-R152a, R22-R12-R114, R290-R22-R115, and R12-R152a-R113. It was found that the ternary interaction parameter contributes to the accuracy of the vapour pressure and is almost equal, irrespective of the measured temperature. The three-dimensional representation system of the phase diagram of ternary refrigerant mixtures was also developed in order to find compositions of alternative mixtures.

Details

  • Original title: Thermodynamic estimation method of ternary refrigerant mixtures using new mixing rules.
  • Record ID : 1992-2573
  • Languages: English
  • Source: Trans. JAR - vol. 8 - n. 3
  • Publication date: 1991
  • Document available for consultation in the library of the IIR headquarters only.

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