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PVT Measurements and Critical Parameters of Water

Published online by Cambridge University Press:  21 February 2011

H. Hanafusa ,
K. Kawai ,
H. Sato ,
M. Uematsu  and
K. Watanabe
H. Hanafusa
Affiliation:
Department of Mechanical Engineering, Keio University, Yokohama 223, Japan
K. Kawai
Affiliation:
Department of Mechanical Engineering, Keio University, Yokohama 223, Japan
H. Sato
Affiliation:
Department of Mechanical Engineering, Keio University, Yokohama 223, Japan
M. Uematsu
Affiliation:
Department of Mechanical Engineering, Keio University, Yokohama 223, Japan
K. Watanabe
Affiliation:
Department of Mechanical Engineering, Keio University, Yokohama 223, Japan
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Abstract

The 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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 22: Symposium NY – High Pressure in Science and Technology , 1983 , 65
Copyright
Copyright © Materials Research Society 1984

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References

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