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Document IIF

Corrélation de la conductivité thermique des HFO et des mélanges HFO/HFC basée sur la théorie de la friction.

Correlation for thermal conductivity of HFOs and HFO/HFC mixtures based on friction theory.

Numéro : 0027

Auteurs : JIA H., HU Y., ZHANG Y., WANG X.

Résumé

Hydrofluoroolefins (HFOs) are a category of environment-friendly refrigerants. The characteristics of HFOs and HFO/HFC mixtures have been more and more widely studied. Thermal conductivity is an important transport property in fluid flow and heat transfer. Therefore, it is necessary to model the thermal conductivity of HFOs and HFO/HFC mixtures. In this work, the experimental data of thermal conductivity of HFOs were correlated by the friction theory (FT) and the PR equation of state, and the overall ARD is 1.86%. To predict the thermal conductivity of HFO/HFC mixtures, thermal conductivity models of R32, R125, R134a and R143a were also established. The thermal conductivities of HFO/HFO and HFO/HFC mixtures were predicted using the linear mixing rule. The overall ARD of the predicted thermal conductivity with the experimental data is 3.99%. It is obvious that the FT+PR model can provide accurate correlations for thermal conductivity of pure HFOs and HFCs, and provide good predictions for the thermal conductivity of HFO/HFO and HFO/HFC mixtures.

Documents disponibles

Format PDF

Pages : 8 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Correlation for thermal conductivity of HFOs and HFO/HFC mixtures based on friction theory.
  • Identifiant de la fiche : 30031036
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 3rd IIR conference on HFO Refrigerants and low GWP Blends. Shanghai, China.
  • Date d'édition : 05/04/2023
  • DOI : http://dx.doi.org/10.18462/iir.HFO2023.0027

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