boundary between regions 2a and 2b
Equation number 2 from:
The International Association for the Properties of Water and Steam
Gaithersburg, Maryland, USA
September 2001
Supplementary Release on Backward Equations for Pressure as a
Function of Enthalpy and Entropy p(h,s) to the IAPWS Industrial
Formulation 1997 for the Thermodynamic Properties of Water and Steam
## Copyright © EDF 2002 - 2025
## ThermoSysPro Version 4.2
function h2ab_s
extends Modelica.Icons.Function;
output Units.SI.SpecificEnthalpy h "Enthalpy";
input Units.SI.SpecificEntropy s "Entropy";
end h2ab_s;
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