Universal parameters of the extended corresponding states (ECS) model for hydrofluoroolefin refrigerants

Ryoma Teraishi, Yohei Kayukawa, Ryo Akasaka*, Kiyoshi Saito

*この研究の対応する著者

研究成果: Article査読

抄録

New universal parameters of the extended corresponding states (ECS) model are presented for hydrofluoroolefin (HFO) refrigerants. The ECS model employing the universal parameters successfully represents the saturation properties. For well-studied HFO refrigerants, which were used to determine the universal parameters, typical deviations between estimations with the ECS model and calculated values with accurate equations of state are within 1 % for vapor pressures and within 3% for saturated liquid densities at reduced temperatures from 0.6 to 0.9. Similar deviations are expected for other HFO refrigerants if reliable experimental values for the critical parameters and acentric factors are available. If these values are less reliable, larger deviations could be observed, up to 3 % and 8 % for vapor pressures and saturated liquid densities, respectively. The ECS model presented here is readily implemented and provides reasonable accuracies; therefore, it is suitable for the preliminary evaluation of novel refrigerants.

本文言語English
ページ(範囲)33-40
ページ数8
ジャーナルInternational Journal of Refrigeration
131
DOI
出版ステータスPublished - 2021 11

ASJC Scopus subject areas

  • 建築および建設
  • 機械工学

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