International Equations for the Saturation Properties of Ordinary Water Substance. Revised According to the International Temperature Scale of 1990. Addendum to J. Phys. Chem. Ref. Data <b>16</b>, 893 (1987)

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  • Wolfgang Wagner
    Institut für Thermo- und Fluiddynamik, Ruhr-Universtiät Bochum, D 4630 Bochum, Federal Republic of Germany
  • A. Pruss
    Institut für Thermo- und Fluiddynamik, Ruhr-Universtiät Bochum, D 4630 Bochum, Federal Republic of Germany

説明

<jats:p>Consistent with the latest experimental data and the internationally recommended values for the critical parameters we published in 1987, compact and accurate correlation equations are given for the following properties on the saturation line of ordinary (light) water substance: vapor pressure, density, and enthalpy and entropy of both the saturated liquid and the saturated vapor. As an addendum to a paper by A. Saul and W. Wagner, J. Phys. Chem. Ref. Data 16, 893 (1987), this paper brings all temperature values and adjusted coefficients in all correlation equations into agreement with the International Temperature Scale of 1990 (ITS-90). The new equations form the basis of the ‘‘Revised Supplementary Release on Saturation Properties of Ordinary Water Substance’’ issued by the International Association for the Properties of Water and Steam (IAPWS). This revised release which contains all equations and coefficients adjusted with regard to the ITS-90 is the main part of this paper.</jats:p>

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