PVT properties, vapor pressures and critical parameters of HFC-32

1995 ◽  
Vol 111 (2) ◽  
pp. 273-286 ◽  
Author(s):  
Yi-Dong Fu ◽  
Li-Zhong Han ◽  
Ming-Shan Zhu
1983 ◽  
Vol 22 ◽  
Author(s):  
H. Hanafusa ◽  
K. Kawai ◽  
H. Sato ◽  
M. Uematsu ◽  
K. Watanabe

ABSTRACTThe PVT properties and vapor-pressures of water have been measured in the critical region by using a constantvolume apparatus immersed in the constant-temperature bath with the procedure of varying the sample mass along a prescribed isotherm. Ninety-one PVT and five vapor-pressure measurements along 11 isotherms cover the region of temperatures 643 to 673 K and of pressures 19.7 to 38.6 MPa, which corresponds to a density variation from 108 to 618 kg/m3. The experimental uncertainties of temperature, pressure and density are estimated 4 mK, 5 kPa and 0.04%, respectively. Based on these measurements, the critical parameters of water are proposed to be 647.061 K, 22.041 MPa and 322.4 kg/m3 by the scaling law analysis.


1999 ◽  
Vol 161 (2) ◽  
pp. 325-335 ◽  
Author(s):  
Tomohiro Sotani ◽  
Hironobu Kubota

1998 ◽  
Vol 7 ◽  
pp. 1198-1200 ◽  
Author(s):  
Toshihide Tsuge ◽  
Haruki Sato ◽  
Koichi Watanabe

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