STEAMEST: A Software Tool for Estimation of Physical Properties of Water and Steam

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Executive Summary

A software tool, STEAMEST, has been developed for estimation of properties of water and steam for industrial applications using IAPWS-IF97 industrial formulation and subsequent updates. STEAMEST meets the precision and consistency standards of the International Association for the Properties of Water and Steam (IAPWS) as verified by 8 byte real values for all variables. It achieves maximum conformity (a tolerance of 1 part per billion) with "Basic Equations" of IAPWS-IF97 through use of iterative procedures instead of approximate "Backward Equations", where recommended "Basic Equations" are not available.

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