PROGAS (Version 31-Jan-2012) Calculation for Mixtures of Real Gases 05-Feb-2012 20:03:01 GAS 5 ISO 20765-1 2005(E) Actual Gas Conditions Pressure 50.00 bar a = 725.19 psia Temperature 16.85 deg C = 62.33 deg F = 290.00 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 5.7000 5.7156 8.0512 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 7.6000 7.5736 16.8649 Methane.....................CH4 81.2000 81.2679 65.6840 Ethane.....................C2H6 4.3000 4.2708 6.5196 Propane....................C3H8 0.9000 0.8839 2.0011 iso-Butane..............i-C4H10 0.1500 0.1442 0.4396 n-Butane................n-C4H10 0.1500 0.1440 0.4396 neo-Pentane...........neo-C5H12 0.0000 0.0000 0.0000 iso-Pentane.............i-C5H12 0.0000 0.0000 0.0000 n-Pentane...............n-C5H12 0.0000 0.0000 0.0000 n-Hexane................n-C6H14 0.0000 0.0000 0.0000 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=61.3499 H=18.3368 O=12.2621 N= 8.0512 S= 0.0000 HE= 0.0000 AR= 0.0000 C+H+O+N+S+HE+AR = 100.0001 Molar Mass = 19.8327 kg/kmol Gas Constant = 419.232 J/(kg*K) Low Heat Value = 37.286 MJ/kg = 16030. BTU/lb High Heat Value = 41.290 MJ/kg = 17751. 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 [-] 39.937 37.846 36.571 37.860 Wobbe Upper Index [-] 44.225 41.909 40.498 41.925 Low Heat Value MJ/m3 33.084 31.347 30.288 31.359 1722.774 Low Heat Value BTU/ft3 888.0 841.3 812.9 841.6 46237.5 High Heat Value MJ/m3 36.637 34.713 33.540 34.726 1907.759 High Heat Value BTU/ft3 983.3 931.7 900.2 932.0 51202.3 Density kg/m3 0.8873 0.8407 0.8123 0.8410 46.2039 Density lb/ft3 0.0554 0.0525 0.0507 0.0525 2.8845 Relative Density [-] 0.6863 0.6861 0.6859 0.6861 Compression Factor [-] 0.99721 0.99768 0.99795 0.99769 0.89010 Internal Energy kJ/kg -160.902 -139.898 -125.657 -139.113 -173.552 Enthalpy kJ/kg -46.708 -19.376 -0.920 -18.358 -65.336 Entropy kJ/(kg*K) 0.1415 0.2389 0.3019 0.2415 -1.5083 Heat Capacity cp kJ/(kg*K) 1.8089 1.8359 1.8556 1.8370 2.2162 Heat Capacity cv kJ/(kg*K) 1.3841 1.4118 1.4319 1.4129 1.4786 Isentropic Exponent [-] 1.3033 1.2974 1.2932 1.2972 1.3405 Joule Thomson Coeff. K/bar 0.5896 0.5268 0.4896 0.5247 0.4752 Speed of Sound m/s 385.784 395.428 401.641 395.776 380.869 Dynamic Viscosity Pa*s*E-6 10.924 11.456 11.807 11.476 12.675 HeatCircuitCapacityW/(m*K) 0.0277 0.0297 0.0311 0.0298 0.0341 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 122.92 mm (122.90 mm at 8.33 degC Steel 5) Pipe Diameter 202.49 mm (202.50 mm at 22.30 degC Steel 4) Diameter Ratio 0.6070 Pressure Difference 0.6320 bar = 9.1664 psi Classical Venturi Tube with machined convergent section Mass Flow = 30.431 kg/s Kinematic Viscosity = 0.27434E-06 m2/s Reynolds Number (dPipe) = 0.15096E+08 [-] Discharge Coefficient = 0.99500 [-] Flow Coefficient = 1.07032 [-] Expansion Factor = 0.99144 [-] Mach number = 0.1457 [-] http://progas.axelebert.org