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Thermodynamic properties of R32 + R134a and R125 + R32 mixtures in and beyond the critical region.

Author(s) : KISELEV S. B., HUBER M. L.

Type of article: Article, IJR article

Summary

A parametric crossover equation of state for pure fluids is adapted to binary mixtures. This equation incorporates scaling laws asymptotically close to the critical point and is transformed into a regular classical expansion far away from the critical point. An isomorphic generalization of the law of corresponding states is applied to the prediction of thermodynamic properties and the phase behaviour of binary mixtures over a wide region around the locus of vapour-liquid critical points. A comparison is made with experimental data for pure R32, R 125 and R134a, and for R32 + R134a and R125 + R32 binary mixtures. The equation of state yields a good representation of thermodynamic property data.

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Pages: 64-76

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Details

  • Original title: Thermodynamic properties of R32 + R134a and R125 + R32 mixtures in and beyond the critical region.
  • Record ID : 1998-2722
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 21 - n. 1
  • Publication date: 1998/01

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