The set of possible combinations of independent thermodynamic variables which can be used as an input for one of the FluidProp methods to compute another thermodynamic variable is listed in Table 1. Not all combinations are available for all the libraries.
The state definition gives a string which defines the input variables for a FluidProp method (see e.g. Enthalpy).
Table 1
State definition |
TPSI |
FreeStanMix |
IF97 |
GasMix |
RefProp |
StanMix |
PCP-SAFT |
PT |
|
|
|
|
|
|
|
Pv |
|
|
|
|
|
|
|
Pd |
|
|
|
|
|
|
|
Ph |
|
|
|
|
|
|
|
Ps |
|
|
|
|
|
|
|
Pq |
|
|
|
n/a |
|
|
|
Pu |
|
|
|
|
|
|
|
Tv |
|
|
|
|
|
|
|
Td |
|
|
|
|
|
|
|
Th |
n/a |
n/a |
|
n/a |
|
n/a |
n/a |
Ts |
|
|
|
|
|
|
|
Tq |
|
|
|
n/a |
|
|
|
Tu |
n/a |
n/a |
|
n/a |
|
n/a |
n/a |
vh |
|
|
|
|
|
|
|
vs |
|
|
|
|
|
|
|
vq |
|
|
|
n/a |
n/a |
|
|
vu |
|
|
|
|
|
|
|
dh |
|
|
|
|
|
|
|
ds |
|
|
|
|
|
|
|
dq |
|
|
|
n/a |
n/a |
|
|
du |
|
|
|
|
|
|
|
hs |
|
|
|
|
|
|
|
sq |
n/a |
n/a |
|
n/a |
n/a |
n/a |
n/a |
su |
n/a |
n/a |
|
|
n/a |
n/a |
n/a |
Legend:
n/a = not available
P = Pressure
T = Temperature
v = Specific volume
d = Density
h = Enthalpy
s = Entropy
u = Internal energy
q = Vapor quality