Phase Equilibria of CFC Alternative Refrigerant Mixtures: 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea)+Difluoromethane (HFC-32), +1,1,1,2-Tetrafluoroethane (HFC-134a), and +1,1-Difluoroethane (HFC-152a)

被引：0

作者：

J.-Y. Park

J. S. Lim

B.-G. Lee

Y.-W. Lee

机构：

[1] Korea Institute of Science and Technology (KIST),Division of Environment and Process Technology

来源：

International Journal of Thermophysics | 2001年 / 22卷

关键词：

binary mixtures; HFC-227ea; HFC-32; HFC-134a; HFC-152a; Peng–Robinson equation of state; vapor–liquid equilibria; Wong–Sandler mixing rule;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Isothermal vapor–liquid equilibria were measured for the binary systems difluoromethane (HFC-32)+1,1,1,2,3,3,3-heptafluoropropane (HFC-22ea) and 1,1-difluoroethane (HFC-152a)+1,1,1,2,3,3,3-heptafluoropropane at 283.15 and 303.15 K and 1,1,1,2-tetrafluoroethane (HFC-134a)+1,1,1,2,3,3,3-heptafluoropropane at 303.15 and 323.15 K in an apparatus in which both phases were recirculated. The experimental data were correlated with the Peng–Robinson equation of state using the Wong–Sandler mixing rules. Azeotropic behavior has not been found in any of the three mixtures.

引用

页码：901 / 917

页数：16

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[2] Phase equilibria of CFC alternative refrigerant mixtures. Binary systems of trifluoromethane (HFC-23)+1,1,1,2-tetrafluoroethane (HFC-134a) and trifluoromethane (HFC-23)+1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) at 283.15 and 293.15 K
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