PROGAS (Version 31-Jan-2012) Calculation for Mixtures of Real Gases 05-Feb-2012 20:33:36 GAS 4 ISO 20765-1 2005(E) Actual Gas Conditions Pressure 100.00 bar a = 1450.38 psia Temperature 76.85 deg C = 170.33 deg F = 350.00 K Sum of Given Gas Composition = 100.0000 Mol% Results Mol% Vol% Wght% Hydrogen.....................H2 9.5000 9.5310 1.1059 Helium.......................He 0.0200 0.0201 0.0046 Water Vapor.................H2O 0.0100 0.0093 0.0104 Carbon Monoxide..............CO 1.0000 1.0020 1.6175 Nitrogen.....................N2 10.0000 10.0216 16.1769 Oxygen.......................O2 0.0100 0.0100 0.0185 Hydrogen Sulfide............H2S 0.0100 0.0099 0.0197 Argon........................Ar 0.0100 0.0100 0.0231 Carbon Dioxide..............CO2 1.6000 1.5935 4.0663 Methane.....................CH4 73.5000 73.5185 68.0926 Ethane.....................C2H6 3.3000 3.2757 5.7303 Propane....................C3H8 0.7400 0.7263 1.8844 iso-Butane..............i-C4H10 0.0800 0.0768 0.2685 n-Butane................n-C4H10 0.0800 0.0768 0.2685 neo-Pentane...........neo-C5H12 0.0000 0.0000 0.0000 iso-Pentane.............i-C5H12 0.0400 0.0376 0.1667 n-Pentane...............n-C5H12 0.0400 0.0368 0.1667 n-Hexane................n-C6H14 0.0200 0.0179 0.0995 n-Heptane...............n-C7H16 0.0100 0.0083 0.0579 n-Octane................n-C8H18 0.0100 0.0074 0.0660 n-Nonane................n-C9H20 0.0100 0.0061 0.0741 n-Decane...............n-C10H22 0.0100 0.0044 0.0822 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=59.9415 H=19.9273 O= 3.9081 N=16.1769 S= 0.0185 HE= 0.0046 AR= 0.0231 C+H+O+N+S+HE+AR = 100.0001 Molar Mass = 17.3170 kg/kmol Gas Constant = 480.135 J/(kg*K) Low Heat Value = 39.729 MJ/kg = 17081. BTU/lb High Heat Value = 44.185 MJ/kg = 18996. 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 [-] 39.747 37.668 36.401 37.682 Wobbe Upper Index [-] 44.204 41.892 40.483 41.908 Low Heat Value MJ/m3 30.755 29.144 28.161 29.155 2480.543 Low Heat Value BTU/ft3 825.4 782.2 755.8 782.5 66575.3 High Heat Value MJ/m3 34.204 32.412 31.319 32.425 2758.736 High Heat Value BTU/ft3 918.0 869.9 840.6 870.2 74041.7 Density kg/m3 0.7741 0.7336 0.7088 0.7338 62.4360 Density lb/ft3 0.0483 0.0458 0.0443 0.0458 3.8979 Relative Density [-] 0.5987 0.5986 0.5985 0.5986 Compression Factor [-] 0.99803 0.99839 0.99859 0.99840 0.95309 Internal Energy kJ/kg -182.385 -159.342 -143.749 -158.483 -106.063 Enthalpy kJ/kg -51.494 -21.214 -0.799 -20.087 54.101 Entropy kJ/(kg*K) 0.2860 0.3939 0.4636 0.3967 -1.5311 Heat Capacity cp kJ/(kg*K) 2.0058 2.0321 2.0512 2.0331 2.5087 Heat Capacity cv kJ/(kg*K) 1.5206 1.5475 1.5671 1.5486 1.7374 Isentropic Exponent [-] 1.3165 1.3110 1.3071 1.3108 1.4123 Joule Thomson Coeff. K/bar 0.4627 0.4137 0.3845 0.4120 0.1996 Speed of Sound m/s 415.105 425.537 432.263 425.915 475.610 Dynamic Viscosity Pa*s*E-6 10.954 11.477 11.821 11.496 15.329 HeatCircuitCapacityW/(m*K) 0.0286 0.0306 0.0320 0.0307 0.0462 ISO 6976-1995 for Molar Mass and Calorific Values at 0degC ISO 20765-1 2005 for Thermodynamic Properties ISO 5167-2003 for Flow Calculation Flow Element Diameter 123.05 mm (122.90 mm at 8.33 degC Steel 5) Pipe Diameter 202.64 mm (202.50 mm at 22.30 degC Steel 1) Diameter Ratio 0.6072 Pressure Difference 0.4320 bar = 6.2656 psi Calibrated Discharge Coefficient Calibration differs from ISO standard formulae by -0.83 % Orifice with D and D/2 Tapping Mass Flow = 17.817 kg/s Kinematic Viscosity = 0.24551E-06 m2/s Reynolds Number (dPipe) = 0.73032E+07 [-] Discharge Coefficient = 0.60041 [-] Flow Coefficient = 0.64592 [-] Expansion Factor = 0.99877 [-] Mach number = 0.0505 [-] http://progas.axelebert.org