Page 42 - Mechanical Engineers' Handbook (Volume 4)

Thermophysical Properties of Fluids 31

Table 19 (Continued)
Temperature (K)
250 300 350 400 450 500
Nitrogen
v 0.7317 0.8786 1.025 1.171 1.319 1.465
h 259.1 311.2 363.3 415.4 467.8 520.4
s 6.650 6.840 7.001 7.140 7.263 7.374
1.042 1.041 1.042 1.045 1.050 1.056
c p
Z 0.9992 0.9998 0.9998 0.9999 1.0000 1.0002
322 353 382 407 432 455
v s
0.0223 0.0259 0.0292 0.0324 0.0366 0.0386
0.155 0.178 0.200 0.220 0.240 0.258
Pr 0.724 0.715 0.713 0.710 0.708 0.706
Oxygen
v 0.6402 0.7688 0.9790 1.025 1.154 1.282
h 226.9 272.7 318.9 365.7 413.1 461.3
s 6.247 6.414 6.557 6.682 6.793 6.895
0.915 0.920 0.929 0.942 0.956 0.972
c p
Z 0.9987 0.9994 0.9996 0.9998 1.0000 1.0000
301 330 356 379 401 421
V s
0.0226 0.0266 0.0305 0.0343 0.0380 0.0416
0.179 0.207 0.234 0.258 0.281 0.303
Pr 0.725 0.716 0.713 0.710 0.708 0.707
Propane
v 0.451 0.548 0.644 0.738 0.832 0.926
h 877.2 957.0 1048 1149 1261 1384
s 5.840 6.131 6.409 6.680 6.944 7.202
1.50 1.70 1.96 2.14 2.35 2.55
c p
Z 0.970 0.982 0.988 0.992 0.994 0.996
227 248 268 285 302 317
v s
0.0128 0.0182 0.0247 0.0296 0.0362 0.0423
0.070 0.082 0.096 0.108 0.119 0.131
Pr 0.820 0.772 0.761 0.765 0.773 0.793
Propylene
v 0.482 0.585 0.686 0.786 0.884 0.972
h 891.8 957.6 1040 1131 1235 1338
s 6.074 6.354 6.606 6.851 7.095 7.338
1.44 1.55 1.73 1.91 2.09 2.27
c p
Z 0.976 0.987 0.992 0.994 0.995 0.996
247 257 278 298 315 333
v s
0.0127 0.0177 0.0233 0.0296 0.0363 0.0438
0.072 0.087 0.101 0.115 0.128 0.141
Pr 0.814 0.769 0.754 0.742 0.731 0.728
a 3
v specific volume (m /kg); h specific enthalpy (kJ/kg); s specific entropy (kJ/kg K); c p specific heat at
velocity of sound (m/s); thermal con-
constant pressure (kJ/kg K); Z compressibility factor Pv/RT; v s
2
4
ductivity (W/m K); viscosity (10 )(N s/m ) (thus, at 250 K for n-butane the viscosity is 2.545 10 4
2
N s/m 0.0002545 Pa s); Pr Prandtl number.