Physical Chemistry of Aqueous Systems: Meeting the Needs of Industry

ISBN Print: 978-1-56700-034-4

ISBN Online: 978-1-56700-445-8

A NEW EQUATION OF STATE OF COMPRESSED WATER FOR INDUSTRIAL USE

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DOI: 10.1615/ICPWS-1994.220
pages 167-174

Ichimatsu Tanishita Kanagawa Institute of Technology, Japan

Jun-ichi Kijima Kanagawa Institute of Technology, Japan

Kosei Oguchi Kanagawa Institute of Technology, Department of Mechanical Engineering, Japan

Yoshinori Takaishi Kanagawa Institute of Technology, Japan

Resumo

A new equation of state of compressed water was correlated for industrial use based on the specific volume and enthalpy values of the International Skeleton Tables(l985), IST-85, in the range of temperatures from 213.15 K to 623.15 K and pressures from vapor pressure to 100 MPa. Calculation time for a new industrial formulation of water substance is required to be faster than that for the IFC Formulation for Industrial Use(l967), IFC-67. In the present formulation a polynomial function and a square root function were used for shortening the computing time.

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