Viscosity of gaseous mixtures of HFC-125 (pentafluoroethane) + HFC-134a (1,1,1,2-tetrafluoroethane) under pressure

Chiaki Yokoyama, Tomomichi Nishino, Mitsuo Takahashi

研究成果: Article査読

20 被引用数 (Scopus)

抄録

This paper reports experimental results for the viscosity of gaseous mixtures of HFC-125 (pentafluoroethane) + HFC-134a (1,1,1,2-tetrafluoroethane) under pressure. The measurements were carried out with an oscillating-disk viscometer of the Maxwell type at temperatures from 298.15 to 423.15K. The viscosity was measured for three mixtures (mole fraction of HFC-125 is 0.7510, 0.5001 or 0.2508). The viscosity at normal pressure was analyzed with the extended law of corresponding states developed by Kestin et al. and the scaling parameters were obtained for unlike-pair interactions between HFC-125 and HFC-134a. The modified Enskog theory developed by Vesovic and Wakeham was applied to predict the viscosity for the binary gaseous mixtures under pressure.

本文言語English
ページ(範囲)231-240
ページ数10
ジャーナルFluid Phase Equilibria
174
1-2
DOI
出版ステータスPublished - 2000 9 25

ASJC Scopus subject areas

  • 化学工学(全般)
  • 物理学および天文学(全般)
  • 物理化学および理論化学

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