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Une approche de mise à l’échelle de l’entropie résiduelle pour la viscosité des frigorigènes, d’autres fluides et de leurs mélanges.

A residual entropy scaling approach for viscosity of refrigerants, other fluids and their mixtures.

Numéro : 0516

Auteurs : YANG X., XIAO X., THOL M., RICHTER M., BELL I. H.

Résumé

In our previous work (J. Chem. Eng. Data 2021, 66, 3, 1385–1398), a residual entropy scaling (RES) approach was developed to link viscosity to residual entropy using a simple polynomial equation for refrigerants. The present study extends the RES approach to other fluids and their mixtures with refrigerants. More than 68.2% (one standard deviation) of the well-selected experimental data agree with the RES model within 3.2% and 8.0% for 124 pure fluids and their mixtures, respectively. With advantageously many fewer parameters, the RES approach yields similar statistical agreement with the experimental data as the best-selected models implemented in the NIST REFPROP database, the current state-of-the-art for thermophysical property calculations. The present work is the basis for developing a RES approach for mixtures of refrigerants with lubricants relevant to compressor design. This new viscosity model will be implemented in an open source software package.

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Format PDF

Pages : 11 p.

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    20 €

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Détails

  • Titre original : A residual entropy scaling approach for viscosity of refrigerants, other fluids and their mixtures.
  • Identifiant de la fiche : 30031623
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0516

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