Measurements of PVTx Properties for Binary Mixtures of HFC-32 (CH2F2) and HFC-134a (CH2FCF3)

被引：0
作者：
K. Oguchi
K. Amano
T. Namiki
N. Umezawa
机构：
[1] Kanagawa Institute of Technology,Department of Mechanical Engineering
[2] Onishi Netsugaku Co.,undefined
[3] Ltd.,undefined
来源：
International Journal of Thermophysics | 1999年 / 20卷
关键词：
alternative refrigerants; experimental data; HFC-32; HFC-134a; mixture; properties; vapor pressure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An experimental study of pressure–volume–temperature–composition (PVTx) properties for binary mixtures of HFC-32 and HFC-134a was conducted in the range of temperatures from 243 to 473 K, pressures up to 16.7 MPa, densities from 9.5 to 1065 kg·m−3, and compositions from 0.39 to 0.89 mol fraction of HFC-32, with uncertainties of 8 mK, 1.7 kPa, 0.04%, and 0.001 mol fraction, respectively. A constant-volume method was used for the present measurements either with a spherical vessel approximately 270 cm3 in its inner volume or with a cylindrical vessel approximately 138cm3 in its inner volume. The present data were compared with the Piao equation of state for this substance.
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页码：1667 / 1676
页数：9
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