H2o Steam Properties - Excel Add-In

The H2O Steam Properties Excel add-in is based upon the International Association for the Properties of Water and Steam (IAPWS) formulations for industrial use. The IAPWS most current documentation may be found on their website, http://www.iapws.org. The add-in is compatible with Excel for Windows 1997 or higher.

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The following functions are implemented in the Excel Add-In:

FunctionInputsReturns
H2oPTHPressure, TemperatureEnthalpy
H2oPTSPressure, TemperatureEntropy
H2oPTUPressure, TemperatureInternal Energy
H2oPTVPressure, TemperatureSpecific Volume
H2oPTCpPressure, TemperatureIsobaric Heat
H2oPTCvPressure, TemperatureIsochoric Heat
H2oPTWPressure, TemperatureSpeed-of-Sound
H2oPTMPressure, TemperatureViscosity
H2oPTKPressure, TemperatureThermal Conductivity
H2oPHTPressure, EnthalpyTemperature
H2oPHSPressure, EnthalpyEntropy
H2oPHUPressure, EnthalpyInternal Energy
H2oPHVPressure, EnthalpySpecific Volume
H2oPHCpPressure, EnthalpyIsobaric Heat
H2oPHCvPressure, EnthalpyIsochoric Heat
H2oPHWPressure, EnthalpySpeed-of-Sound
H2oPHMPressure, EnthalpyViscosity
H2oPHKPressure, EnthalpyThermal Conductivity
H2oPSTPressure, EntropyTemperature
H2oPSHPressure, EntropyEnthalpy
H2oPSUPressure, EntropyInternal Energy
H2oPSVPressure, EntropySpecific Volume
H2oPSCpPressure, EntropyIsobaric Heat
H2oPSCvPressure, EntropyIsochoric Heat
H2oPSWPressure, EntropySpeed-of-Sound
H2oPSMPressure, EntropyViscosity
H2oPSKPressure, EntropyThermal Conductivity
H2oPTPressureTemperature
H2oTPTemperaturePressure
H2oPQHPressure, QualityEnthalpy
H2oPQSPressure, QualityEntropy
H2oPQUPressure, QualityInternal Energy
H2oPQVPressure, QualitySpecific Volume
H2oPQCpPressure, QualityIsobaric Heat
H2oPQCvPressure, QualityIsochoric Heat
H2oTQHTemperature, QualityEnthalpy
H2oTQSTemperature, QualityEntropy
H2oTQUTemperature, QualityInternal Energy
H2oTQVTemperature, QualitySpecific Volume
H2oTQCpTemperature, QualityIsobaric Heat
H2oTQCvTemperature, QualityIsochoric Heat
H2oHSPEnthalpy, EntropyPressure
H2oHSTEnthalpy, EntropyTemperature
H2oHSQEnthalpy, EntropyQuality
H2oHSUEnthalpy, EntropyInternal Energy
H2oHSVEnthalpy, EntropySpecific Volume
H2oHSCpEnthalpy, EntropyIsobaric Heat
H2oHSCvEnthalpy, EntropyIsochoric Heat
H2oHSWEnthalpy, EntropySpeed-of-Sound
H2oHSMEnthalpy, EntropyViscosity
H2oHSKEnthalpy, EntropyThermal Conductivity

The following IAPWS documents were used in the program development and are referenced in this manual and in the programs interactive help files.

1. IAPWS R7-97(2012): Revised Release on the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam. (IAPWS-IF97). (Revised August 2007).

2. IAPWS SR2-01(2014): Revised 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. (Revised June 2014).

3. IAPWS SR3-03(2014): Revised Supplementary Release on Backward Equations for the Functions T(p,h), v(p,h) and T(p,s), v(p,s) for Region 3 of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam. (Revised June 2014).

4. IAPWS SR4-04(2014): Revised Supplementary Release on Backward Equations p(h,s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and an Equation Tsat(h,s) for Region 4 of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam. (Revised June 2014).

5. IAPWS SR5-05(2016): Revised Supplementary Release on Backward Equations for Specific Volume as a Function of Pressure and Temperature v(p,T) for Region 3 of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam. (Revised September 2016).

6. IAPWS R12-08: Release on the IAPWS Formulation 2008 for the Viscosity of Ordinary Water Substance.

7. IAPWS R15-11: Release on the IAPWS Formulation 2011 for the Thermal Conductivity of Ordinary Water Substance.

8. IAPWS R1-76(2014): Revised Release on the Surface Tension of Ordinary Water Substance. (Revised June 2014).

9. ASME International Steam Tables for Industrial Use, Third Edition (2014). Introductory text from this document is incorporated into this manual in order to provide general background guidance to the user.