Contents
SW_Entropy Specific entropy of seawater
=========================================================================
USAGE: s = SW_Entropy(T,S)
DESCRIPTION:
Specific entropy of seawater at atmospheric pressure (0.1 MPa) using Eq. (46)
given in [1] which best fit the data of [2]. The pure water specific
entropy equation is a best fit to the data of [3].
Values at temperature higher than the normal boiling temperature are
calculated at the saturation pressure.
INPUT: (all must have same dimensions)
T = temperature [degree C] (ITS-90)
S = salinity [g/kg] (reference-composition salinity)
OUTPUT:
s = specific entropy [J/kg]
VALIDITY: 10 < T < 120 C, 0 < S < 120 g/kg
ACCURACY: 0.5
REFERENCES:
[1] Sharqawy M. H., Lienhard J. H., and Zubair, S. M., Desalination and Water Treatment, 2010.
[2] IAPWS release on the thermodynamic properties of seawater, 2008
[3] IAPWS release on the Thermodynamic properties of ordinary water substance, 1996.
=========================================================================
Return to Function List