CORRELATIONS FOR FAST COMPUTATION OF THERMODYNAMIC PROPERTIES OF SATURATED WATER AND STEAM

An important issue in the engineering analysis and design of thermodynamic cycles is the calculation of saturation properties with enough speed without sacrificing accuracy. A set of correlations to reproduce tabulated thermodynamic saturation properties to engineering accuracy is given. They are fast to compute and become adequate for use whenever several thousands to millions of property evaluations are required. Then, they can be applied in thermodynamic cycle design optimization, in dynamic simulations of power cycles and in other industrial flow calculations. In addition, they can be incorporated into programmable calculators. For most saturation properties, the whole range from triple point to the critical point is dealt with by a single equation. Such equations can approximate tabulated values to within a small error. The correlations presented here were developed for water substance.