更多流体的临界参数 Critical-point properties Gas Molar mass, constant, Temperature, Pressure, Volume, Substance Formula M kg/kmol R kJ/kg·K K MPa m3/kmol Air 28.97 0.2870 132.5 3.77 0.0883 Ammonia NH3 17.03 0.4882 405.5 11.28 0.0724 Argon Ar 39.948 0.2081 151 4.86 0.0749 Benzene CeHs 78.115 0.1064 562 4.92 0.2603 Bromine Br2 159.808 0.0520 584 10.34 0.1355 n-Butane CaHio 58.124 0.1430 425.2 3.80 0.2547 Carbon dioxide C02 44.01 0.1889 304.2 7.39 0.0943 Carbon monoxide Co 28.011 0.2968 133 3.50 0.0930 Carbon tetrachloride CCI4 153.82 0.05405 556.4 4.56 0.2759 Chlorine Cl2 70.906 0.1173 417 7.71 0.1242 Chloroform CHCI3 119.38 0.06964 536.6 5.47 0.2403 Dichlorodifluoromethane(R-12) CCI2F2 120.91 0.06876 384.7 4.01 0.2179 Dichlorofluoromethane(R-21) CHCIF 102.92 0.08078 451.7 5.17 0.1973 Ethane C2H5 30.070 0.2765 305.5 4.48 0.1480 Ethyl alcohol C2HOH 46.07 0.1805 516 6.38 0.1673 Ethylene C2Ha 28.054 0.2964 282.4 5.12 0.1242 Helium He 4.003 2.0769 5.3 0.23 0.0578 n-Hexane C6H14 86.179 0.09647 507.9 3.03 0.3677 Hydrogen (normal) H2 2.016 4.1240 33.3 1.30 0.0649 Krypton 83.80 0.09921 209.4 5.50 0.0924 Methane CHa 16.043 0.5182 191.1 4.64 0.0993 Methyl alcohol CHOH 32.042 0.2595 513.2 7.95 0.1180 Methyl chloride CHCI 50.488 0.1647 416.3 6.68 0.1430 Neon N 20.183 0.4119 44.5 2.73 0.0417 Nitrogen N2 28.013 0.2968 126.2 3.39 0.0899 Nitrous oxide 20 44.013 0.1889 309.7 7.27 0.0961 Oxygen 02 31.999 0.2598 154.8 5.08 0.0780 Propane CaH8 44.097 0.1885 370 4.26 0.1998 Propylene C3H6 42.081 0.1976 365 4.62 0.1810 Sulfur dioxide S02 64.063 0.1298 430.7 7.88 0.1217 Tetrafluoroethane(R-134a) CFCH>F 102.03 0.08149 374.2 4.059 0.1993 Trichlorofluoromethane (R-11) CCIaF 137.37 0.06052 471.2 4.38 0.2478 Water H20 18.015 0.4615 647.1 22.06 0.0560 Xenon e 131.30 0.06332 289.8 5.88 0.1186 "The unit kJ/kg.K is equivalent to kPa.m/kg.K.The gas constant is calculated from R-R/M,where R-8.31447 kJ/kmol.K and M is the molar ma55. Source:K.A.Kobe and R.E.Lynn.Jr..Chemical Review 52 (1953).pp.117-236:and ASHRAE.Handbook of Fundamentals (Atlanta,GA:American Society of Heating.Refrigerating and Air-Conditioning Engineers,Inc.,1993),pp.16.4 and 36.1 上通大学 2019年3月23日 9 SHANGHAI JIAO TONG UNIVERSITY2019年3月23日 9 更多流体的临界参数