NEW EQUATIONS FOR THE THERMODYNAMIC PROPERTIES OF SATURATED WATER AND STEAM.

New thermodynamic equations of saturation temperature, specific volume, specific enthalpy, specific entropy and specific isobaric heat capacity both for saturated water and for saturated steam were formulated for the range of temperature between the triple point of water and the critical temperature. These equations are based on the International Skeleton Tables (1963) and agree well with the property values given in the 1968 JSME Steam Tables. The features that make them suitable for computation with computers are discussed. In the present paper these new equations, the computed results of thermodynamic properties and also the comparison with those of IST (1963), and of the 1967 IFC Formulation for Industrial Use are described.