Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use
This Maple Application was developed by Russian National Committee (RNC) of International Association for the Water and Steam(IAPWS). This calculation page is based on the "Revised Release on the IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use" [1] Detailed information about used equations, constants, range of validity etc is presented in PDF version of IAPWS Release which can be downloaded from IAPWS wed site
Authors (and responsible persons)
Valery Ochkov (ochkov@twt.mpei.ac.ru) Konstantin Orlov (orlov@twt.mpei.ac.ru) Aung Thu Ya Tun (aungthuyatun198@gmail.com)
Moscow Power Engineering Institute (MPEI)
Samir Khan (skhan@maplesoft.com)
Maplesoft Note that displayed last digits depends on numeric implementation of underlying formulations. Formulation IAPWS-95 - http://iapws.org/relguide/IAPWS95-2014.pdf
Parameters
Temperature
K
Density
kg m-3
Results
Pressure
MPa
Compressibility Factor
Internal Energy
kJ kg-1
Specific Entropy
kJ kg-1 K-1
Specific Enthalpy
Specific Isochoric Heat Capacity
Specific Isobaric Heat Capacity
Speed of Sound
m s-1
Joule-Thomson Coefficient
K MPa-1
Isothermal Throttling Coefficient
m3 kg-1
Isentropic Temperature-Pressure Coefficient