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SAFT-based refrigerant property models accounting for polarity.

Number: 2114

Author(s) : BELL I.

Summary

The Statistical Fluid Associating Theory (SAFT) approach for modeling thermodynamic properties has seen extensive application in recent years, but not as much in the field of refrigeration. Therefore this study investigates whether one type of SAFT model, the SAFT-VR-Mie model, which has a theoretically sound basis and four adjustable parameters
per fluid, provides accurate enough thermodynamic properties for use in system analysis and component design. The addition of one of four different polar contributions is also investigated. The conclusion is that for the most difficult refrigerant to model, that of HFC-32, none of the polar models can compete with the multiparameter EOS in terms of
accuracy. For less polar molecules like HFC-245fa or HFC-125, the use of polar SAFT-VR-Mie models appears to be a reasonable option, although clear limitations are found in the critical region.

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Pages: 10 p.

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  • Original title: SAFT-based refrigerant property models accounting for polarity.
  • Record ID : 30032979
  • Languages: English
  • Source: 2024 Purdue Conferences. 20th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2024/07/17

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