Calculate IAPWS R7-97 steam boiler power from temperature, pressure and mass flow rate.
The boiler power is calculated from the change of enthalpy between the inlet water, and the outlet steam. The boiler power can be calculated for either dry steam (boiler plus super heater), or saturated steam (boiler only). For dry steam the boiler power includes the combined power of the boiler and super heater. The boiler pressure is assumed constant. The enthalpy change is positive.
Note : There is an anomaly in the steam calculation for region 3 between the saturated vapour line, the region 2/3 boundary, and the critical pressure. Refer to the region 3 anomaly help page for more details (click the utility button on the data bar). IAPWS R7-97 is intended for industrial use, and is a simplified version of IAPWS R6-95 for scientific use. IAPWS R7-97 was developed as an improvement of the IFC-67 model.
Reference : IAPWS R7-97 Industrial Formulation for thermodynamic Properties of Water and Steam
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