TPSI implements the computer programs described in:
Reynolds, W.C., Thermodynamic properties in S.I., Department of Mechanical Engineering - Stanford University, Stanford, CA, 1979.
A first version of the program was written by Prof. W.C. Reynolds and distributed as a DOS executable program. The program was later modified and expanded with more fluids and properties, as documented in:
Colonna, P., Rebay, S., and Silva, P., Computer Simulations of Dense Gas Flows Using Complex Equations of State for Pure Fluids and Mixtures and State of the Art Numerical Schemes. Tech. Rep., Università di Brescia, Via Branze, 38, 25123 Brescia, Italy, March 2002.
TPSI provides thermodynamic properties for the fluids listed in Table 1. The listed FluidProp names (either short or long) must be used to specify the fluid name in the SetFluid method. For a given fluid, the FluidProp name is the same in all thermodynamic libraries in which the fluid is available. Liquid metals are available at additional cost.
Table 1
FluidProp Name (short) | FluidProp Name (long) | MW [g/mol] | Tc [°C] | Pc [bar] | vc [m3/kg] | Tmin [°C] | Tmax [°C] |
air |
air |
28.9635 |
[-] |
[-] |
[-] |
-223.15 |
1326.85 |
NH3 |
ammonia |
17.0306 |
133.65 |
116.27 |
0.00399774 |
-73.15 |
400.00 |
C4H10 |
butane |
58.1110 |
150.80 |
37.18 |
0.00489947 |
-73.15 |
350.00 |
Cs |
cesium |
132.9133 |
1774.64 |
117.30 |
0.01229748 |
526.85 |
2726.85 |
C2H6 |
ethane |
30.0408 |
32.73 |
50.10 |
0.00463544 |
-123.15 |
306.85 |
C7H16 |
heptane |
100.1808 |
264.53 |
26.20 |
0.00507582 |
26.85 |
406.85 |
C6H14 |
hexane |
86.1572 |
232.98 |
29.27 |
0.00528089 |
-23.15 |
406.85 |
i-C4H10 |
isobutane |
58.1110 |
135.92 |
36.85 |
0.00519999 |
-73.15 |
306.85 |
i-C5H12 |
isopentane |
72.1346 |
187.83 |
34.09 |
0.00447662 |
-73.15 |
350.00 |
CH4 |
methane |
16.0433 |
-82.59 |
45.99 |
0.00616747 |
-182.47 |
350.00 |
N2/O2/Ar/H2O |
moist. air |
22.2141 |
-9161.95 |
-0.09 |
[-] |
-33.15 |
326.85 |
C8H18 |
octane |
114.2044 |
294.36 |
24.00 |
0.00556639 |
26.85 |
406.85 |
C5H12 |
pentane |
72.1346 |
193.85 |
32.40 |
0.00511297 |
-73.15 |
350.00 |
K |
potassium |
39.1010 |
1899.85 |
167.00 |
[-] |
526.85 |
2726.85 |
C3H8 |
propane |
44.0544 |
96.67 |
42.36 |
0.00496161 |
-73.15 |
350.00 |
R11 |
R11 |
137.3793 |
198.00 |
44.09 |
0.00185739 |
-73.15 |
350.00 |
R12 |
R12 |
120.9418 |
112.02 |
41.60 |
[-] |
-73.15 |
350.00 |
Rb |
rubidium |
85.4817 |
1832.75 |
133.90 |
0.01609925 |
726.85 |
2726.85 |
Na |
sodium |
22.9915 |
2299.85 |
341.00 |
[-] |
526.85 |
2726.85 |
H2O |
water |
18.0159 |
374.14 |
220.89 |
0.00323482 |
-0.15 |
800.00 |
(1) In this model air and H2O vapor are treated as perfect gas with variable specific heats. The liquid is treated as incompressible. It uses specific heat and saturation equations from the appropriate TPSI subroutines of the other fluids.