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Improved corresponding states models for pure and mixed hydrocarbons with an innovative predictive mixing rule.

Author(s) : SCALABRIN G., GRIGIANTE M.

Summary

Thermodynamic modelling of pure hydrocarbons is a fundamental element for the study of refrigeration cycles. In this field, the model prediction accuracy among volumetric vapour liquid equilibrium and calorimetric properties has to be comparable, while accurate predictive mixing rules are greatly appreciated. The effectiveness of corresponding states is investigated for these fluids starting from the classic Lee-Kessler and Lee-Kessler-Plöcker models. An innovative and totally predictive mixing rule is introduced to evaluate any group of properties which means that large experimental data bases can be avoided. The volume of pure fluids in any thermodynamic state is finely represented as well as vapour pressure. Volume, VLE and remaining enthalpy of mixtures are predicted too and are consistent with the experimental data.

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Pages: P 748-757

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Details

  • Original title: Improved corresponding states models for pure and mixed hydrocarbons with an innovative predictive mixing rule.
  • Record ID : 1998-2157
  • Languages: English
  • Source: Applications for Natural Refrigerants
  • Publication date: 1996/09/03
  • Document available for consultation in the library of the IIR headquarters only.

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