Wobbe Index by Myself

References ISO 6976 (1995) Natural gas - Calculation of calorific values, density, relative density and Wobbe inde Amount fraction Superior (gross) c Inputs Component % mol/ mol SG Btu (HHV) T, °F Btu (LHV) value (MJ/kg) Nitrogen 0.9672 0 60.0 0 0 Car.dio. 1.5195 0 60.0 5 0 Methane 0.5539 891.56 60.0 83 802.69 ### Ethane 1.0382 1562.14 60.0 5.82 1428.84 ### Propane 1.5225 2221.1 60.0 3.15 2043.37 ### Iso-butane 1.9373 2879.76 60.0 2 2657.6 ### N-butane 1.9373 2879.76 60.0 0 2657.6 ### Neo-pentane 2.4911 3538.6 60.0 0 3272 ### Iso-pentane 2.4911 3538.6 60.0 0 3272 ### N-pentane 2.4911 3538.6 60.0 0 3272 ### N-hexane 2.9755 4198.24 60.0 0 3887.21 ### Heptane 3.4598 4857.18 60.0 1 4501.72 Water 0.6220 44.433 60.0 0.01 0 Oxygen 1.1048 0 60.0 0.02 0 100 Wobbe Index

50.2722825766

0 0 98 1 0.2 0.25 0.37 0 0.21 0.14 0.06 0.02 0 0

SG 53.649 0.7177436 MWI

LHV 1035

HHV 42.590552

ve density and Wobbe index from composition GCV (MJ/m³)

0 0 37.706 66.07 93.94 121.79 121.79 149.66 149.66 149.66 177.55 205.42 1.88 0

0 0 31.29598 3.845274 2.95911 2.4358 0 0 0 0 0 2.0542 0.000188 0

LHV Converter NGV(MJ/m³) 0 0 0 0 911.134 756.24 33.948 1621.89 94.394 60.43 2319.44 73.062 86.42 3016.71 60.334 112.4 3016.71 0 112.4 3713.99 0 138.38 3713.99 0 138.38 3713.99 0 138.38 4412.35 0 164.4 5109.9 51.099 190.39 0 0 0 0 0 0

SG

max WI

0 0.075977295 0.459754649 0.060425307 0.047960318 0.03874514 0 0 0 0 0 0.034597723 6.22019E-005 0.000220966

0 0 83 10.84 3.15 2 0 0 0 0 0 1 0.01 0

min WI

max SG

min SG

5 3 91.97 0 0 0 0 0 0 0 0 0 0.01 0.02

0 5 83 5.82 3.15 2 0 0 0 0 0 1 0.01 0.02

0 0 100 0 0 0 0 0 0 0 0 0 0 0

WI (MJ/m³) 47.2 48 49 50 51 51.5

CH4 94.99 91.85 93.15 94.70 96.65 96.65

SG 0.60 C3H8 0.01 3.15 3.00 2.95 2.70 3.15

N2 5.00 5.00 3.85 2.35 0.65 0.20