PROGAS (Version 31-Jan-2012) Calculation for Mixtures of Real Gases 05-Feb-2012 19:49:47 Gas 1 ISO 20765-1 Actual Gas Conditions Pressure 150.00 bar a = 2175.57 psia Temperature 36.85 deg C = 98.33 deg F = 310.00 K Sum of Given Gas Composition = 100.0000 Mol% Results Mol% Vol% Wght% Hydrogen.....................H2 0.0000 0.0000 0.0000 Helium.......................He 0.0000 0.0000 0.0000 Water Vapor.................H2O 0.0000 0.0000 0.0000 Carbon Monoxide..............CO 0.0000 0.0000 0.0000 Nitrogen.....................N2 0.3000 0.3007 0.5001 Oxygen.......................O2 0.0000 0.0000 0.0000 Hydrogen Sulfide............H2S 0.0000 0.0000 0.0000 Argon........................Ar 0.0000 0.0000 0.0000 Carbon Dioxide..............CO2 0.6000 0.5977 1.5715 Methane.....................CH4 96.5000 96.5435 92.1321 Ethane.....................C2H6 1.8000 1.7871 3.2211 Propane....................C3H8 0.4500 0.4418 1.1809 iso-Butane..............i-C4H10 0.1000 0.0961 0.3459 n-Butane................n-C4H10 0.1000 0.0960 0.3459 neo-Pentane...........neo-C5H12 0.0000 0.0000 0.0000 iso-Pentane.............i-C5H12 0.0500 0.0470 0.2147 n-Pentane...............n-C5H12 0.0300 0.0276 0.1288 n-Hexane................n-C6H14 0.0700 0.0626 0.3590 n-Heptane...............n-C7H16 0.0000 0.0000 0.0000 n-Octane................n-C8H18 0.0000 0.0000 0.0000 n-Nonane................n-C9H20 0.0000 0.0000 0.0000 n-Decane...............n-C10H22 0.0000 0.0000 0.0000 Sulfur Dioxide..............SO2 0.0000 0.0000 0.0000 Cyclopentane............c-C5H10 0.0000 0.0000 0.0000 Cyclohexane.............c-C6H12 0.0000 0.0000 0.0000 Methylcyclopentane.....CH3-C5H9 0.0000 0.0000 0.0000 Methylcyclohexane.....CH3-C6H11 0.0000 0.0000 0.0000 2,2-Dimethylbutane..2,2-i-C6H14 0.0000 0.0000 0.0000 2,3-Dimethylbutane..2,3-i-C6H14 0.0000 0.0000 0.0000 Benzene....................C6H6 0.0000 0.0000 0.0000 Toluene....................C7H8 0.0000 0.0000 0.0000 o-xylene................o-C8H10 0.0000 0.0000 0.0000 Sum 100.000 100.000 100.000 Ultimate Analysis in Weight% C=74.1033 H=24.2540 O= 1.1426 N= 0.5001 S= 0.0000 HE= 0.0000 AR= 0.0000 C+H+O+N+S+HE+AR = 100.0000 Molar Mass = 16.8036 kg/kmol Gas Constant = 494.806 J/(kg*K) Low Heat Value = 48.803 MJ/kg = 20981. BTU/lb High Heat Value = 54.098 MJ/kg = 23258. BTU/lb Pressure 1.013bar 1.013bar 1.013bar 14.73psi Actual Temperature 0. degC 15. degC 25. degC 60. degF Actual ------------------------------------+---------+---------+---------+---------+ Wobbe Lower Index [-] 48.110 45.591 44.057 45.609 Wobbe Upper Index [-] 53.330 50.539 48.837 50.558 Low Heat Value MJ/m3 36.682 34.757 33.583 34.770 5743.191 Low Heat Value BTU/ft3 984.5 932.8 901.3 933.2 154141.5 High Heat Value MJ/m3 40.662 38.528 37.227 38.543 6366.390 High Heat Value BTU/ft3 1091.3 1034.1 999.1 1034.5 170867.5 Density kg/m3 0.7516 0.7122 0.6881 0.7125 117.6821 Density lb/ft3 0.0469 0.0445 0.0430 0.0445 7.3468 Relative Density [-] 0.5813 0.5812 0.5810 0.5812 Compression Factor [-] 0.99741 0.99785 0.99810 0.99786 0.83097 Internal Energy kJ/kg -189.497 -164.915 -148.258 -163.997 -240.515 Enthalpy kJ/kg -54.691 -22.643 -1.013 -21.450 -113.053 Entropy kJ/(kg*K) -0.0894 0.0248 0.0986 0.0278 -2.6276 Heat Capacity cp kJ/(kg*K) 2.1217 2.1520 2.1744 2.1532 3.2590 Heat Capacity cv kJ/(kg*K) 1.6208 1.6518 1.6747 1.6530 1.8298 Isentropic Exponent [-] 1.3057 1.3000 1.2959 1.2998 1.7040 Joule Thomson Coeff. K/bar 0.5522 0.4945 0.4601 0.4926 0.2363 Speed of Sound m/s 419.544 430.063 436.830 430.443 466.042 Dynamic Viscosity Pa*s*E-6 10.226 10.720 11.045 10.738 16.400 HeatCircuitCapacityW/(m*K) 0.0298 0.0319 0.0334 0.0320 0.0534 ISO 6976-1995 for Molar Mass and Calorific Values at 25degC ISO 20765-1 2005 for Thermodynamic Properties ISO 5167-2003 for Flow Calculation Flow Element Diameter 142.71 mm (142.70 mm at 32.00 degC Steel 6) Pipe Diameter 253.44 mm (253.40 mm at 25.00 degC Steel 2) Diameter Ratio 0.5631 Pressure Difference 0.4990 bar = 7.2374 psi ISA 1932 Nozzle Mass Flow = 55.887 kg/s Kinematic Viscosity = 0.13936E-06 m2/s Reynolds Number (dPipe) = 0.17121E+08 [-] Discharge Coefficient = 0.96852 [-] Flow Coefficient = 1.02121 [-] Expansion Factor = 0.99832 [-] Mach number = 0.06370 [-] http://progas.axelebert.org