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Thermodynamic and Transport Properties of Water and Steam
Units
.
Functions
Function 
Parameters 
Return 
Description 
Tsat_p 
p 
T 
Saturation temperature 
Tsat_s 
s 
T 
Saturation temperature 
T_ph 
p, h 
T 
Temperture as a function of pressure and enthalpy 
T_ps 
p, s 
T 
Temperture as a function of pressure and entropy 
T_hs 
h, s 
T 
Temperture as a function of enthalpy and entropy 
Function 
Parameters 
Return 
Description 
psat_T 
T 
p 
Saturation pressure 
psat_s 
s 
p 
Saturation pressure 
p_hs 
h, s 
p 
Pressure as a function of h and s 
p_hrho 
h, rho 
p 
Pressure as a function of h and rho (density). Very unaccurate for solid water region since it's almost incompressible! 
Function 
Parameters 
Return 
Description 
sV_p 
p 
s 
Saturated vapour entropy 
sL_p 
p 
s 
Saturated liquid entropy 
sV_T 
T 
s 
Saturated vapour entropy 
sL_T 
T 
s 
Saturated liquid entropy 
s_pT 
p, T 
s 
Specific entropy as a function of pressure and temperature (Returns saturated vapour entalpy if mixture) 
s_ph 
p, h 
s 
Specific entropy as a function of pressure and enthalpy 
Function 
Parameters 
Return 
Description 
uV_p 
p 
u 
Saturated vapour internal energy 
uL_p 
p 
u 
Saturated liquid internal energy 
uV_T 
T 
u 
Saturated vapour internal energy 
uL_T 
T 
u 
Saturated liquid internal energy 
u_pT 
p, T 
u 
Specific internal energy as a function of pressure and temperature 
u_ph 
p, h 
u 
Specific internal energy as a function of pressure and enthalpy 
u_ps 
p, s 
u 
Specific internal energy as a function of pressure and entropy 
Function 
Parameters 
Return 
Description 
CpV_p 
p 
Cp 
Saturated vapour heat capacity 
CpL_p 
p 
Cp 
Saturated liquid heat capacity 
CpV_T 
T 
Cp 
Saturated vapour heat capacity 
CpL_T 
T 
Cp 
Saturated liquid heat capacity 
Cp_pT 
p, T 
Cp 
Specific isobaric heat capacity as a function of pressure and temperature 
Cp_ph 
p, h 
Cp 
Specific isobaric heat capacity as a function of pressure and enthalpy 
Cp_ps 
p, s 
Cp 
Specific isobaric heat capacity as a function of pressure and entropy 
Function 
Parameters 
Return 
Description 
CvV_p 
p 
Cv 
Saturated vapour isochoric heat capacity 
CvL_p 
p 
Cv 
Saturated liquid isochoric heat capacity 
CvV_T 
T 
Cv 
Saturated vapour isochoric heat capacity 
CvL_T 
T 
Cv 
Saturated liquid isochoric heat capacity 
Cv_pT 
p, T 
Cv 
Specific isochoric heat capacity as a function of pressure and temperature 
Cv_ph 
p, h 
Cv 
Specific isochoric heat capacity as a function of pressure and enthalpy 
Cv_ps 
p, s 
Cv 
Specific isochoric heat capacity as a function of pressure and entropy 
Function 
Parameters 
Return 
Description 
wV_p 
p 
w 
Saturated vapour speed of sound 
wL_p 
p 
w 
Saturated liquid speed of sound 
wV_T 
T 
w 
Saturated vapour speed of sound 
wL_T 
T 
w 
Saturated liquid speed of sound 
w_pT 
p, T 
w 
Speed of sound as a function of pressure and temperature 
w_ph 
p, h 
w 
Speed of sound as a function of pressure and enthalpy 
w_ps 
p, s 
w 
Speed of sound as a function of pressure and entropy 
Function 
Parameters 
Return 
Description 
my_pT 
p, T 
my 
Viscosity as a function of pressure and temperature 
my_ph 
p, h 
my 
Viscosity as a function of pressure and enthalpy 
my_ps 
p, s 
my 
Viscosity as a function of pressure and entropy 
Function 
Parameters 
Return 
Description 
Pr_pT 
p, T 


Pr_ph 
p, h 


Function 
Parameters 
Return 
Description 
Kappa_pT 
p, T 


Kappa_ph 
p, h 


Function 
Parameters 
Return 
Description 
st_t 
T 
st 
Surface tension for two phase water/steam as a function of T 
st_p 
p 
st 
Surface tension for two phase water/steam as a function of p 
Function 
Parameters 
Return 
Description 
tcL_p 
p 
tc 
Saturated vapour thermal conductivity 
tcV_p 
p 
tc 
Saturated liquid thermal conductivity 
tcL_T 
T 
tc 
Saturated vapour thermal conductivity 
tcV_T 
T 
tc 
Saturated liquid thermal conductivity 
tc_pT 
p, T 
tc 
Thermal conductivity as a function of pressure and temperature 
tc_ph 
p, h 
tc 
Thermal conductivity as a function of pressure and enthalpy 
tc_hs 
h, s 
tc 
Thermal conductivity as a function of enthalpy and entropy 
Function 
Parameters 
Return 
Description 
x_ph 
p, h 
x 
Vapour fraction as a function of pressure and enthalpy 
x_ps 
p, s 
x 
Vapour fraction as a function of pressure and entropy 
Function 
Parameters 
Return 
Description 
vx_ph 
p, h 
vx 
Vapour volume fraction as a function of pressure and enthalpy 
vx_ps 
p, s 
vx 
Vapour volume fraction as a function of pressure and entropy 
