This Supplementary Release provides simple formulations for the saturation pressure of ordinary water as a function of temperature, and also of the saturated vapor and liquid densities, enthalpies, and entropies.
It is intended to provide a convenient and simple approximation to the complete IAPWS-95 formulation for users who only need properties at saturation conditions. It can also provide good initial guesses for calculations with the IAPWS-95 formulation.
The development of the correlations is described in detail in a scientific article.
This Supplementary Release is the product of the Working Group "Thermophysical Properties of Water and Steam" (TPWS) of the International Association for the Properties of Water and Steam (IAPWS).
This page updated May 29, 2018