Steam Tables is a nimble app for Windows that calculates thermodynamic properties of water and steam from two extensive variables that define the state of a single-component system (i.e. pressure, temperature, enthalpy, entropy or density). The latest equations are used to describe the properties: IAPWS-IF97 is used for the forward equations. Due to the power of modern processors, the more accurate iterative back calculations can be done almost as quickly as the less accurate back-equation estimates described in IAPWS-IF97, so Steam Tables deploys the more accurate iterative approach. The results generated by Steam Tables have been verified precise to 14 decimal places for multiple points in each of the five regions described in IAPWS-IF97. This allows engineers in the power, refining and chemical industries to quickly calculate enthalpies, entropies and work potentials for steam turbines, steam engines, chemical production units that use steam as a heat medium and nuclear reactors with a high degree of confidence… with calculation times typically less than a second on modern processors.

Steam Tables was written in C#, and I’ve made it available to download for free from my server.

Download: SteamTables

To install, unzip the file and run “setup.exe”