New Equation of State for Steam up to 800℃ and 1000 bar

概要

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A new equation of state for steam was formulated for the range of temperatures from 0 to 800℃ and of pressures from 0 to 1000 bar. This new equation, in which the specific volume is expressed as the function of temperature and pressure, has a relatively simple form of polynomials and is suitable for computer calculations. This equation was transformed into a nondimensional canonical form (the equation of Gibbs function) from which various derived quantities such as the specific enthalpy, the specific entropy and the specific heat can be obtained by differentiation only. Calculated values of the specific volume and the specific enthalpy agree with the values of the new Skeleton Tables (1963) established by the Sixth International Conference on the Properties of Steam held in New York. The new equation of state and derived functions as well as tables of calculated property values are shown in this report.
一般社団法人日本機械学会の論文