Friday, 11 November 2016

Fuels - Combustion Air and Flue Gases

Fuels - Combustion Air and Flue Gases

Combustion air and flue gas for common fuels - coke, oil, wood, natural gas and more

Combustion air and flue gas for some common fuel gases, solids and fluids:
FuelTheoretical air for combustion2)Theoretical flue gas2)
Solids (m3/kg) (ft3/lb) (m3/kg) (ft3/lb)
Anthracite 9.4 150 9.5 152
Bituminous coal 6.9 110 7 112
Charcoal 8.4 134 8.4 135
Coke 8.4 134 8 135
Lignite 5.7 92 8.4 93
Peat 5.7 92 5.9 94
Semi anthracite 8.4 135 8.6 137
Wood (dry) 4.4 70 5 80
Gas (m3air/m3fuel) (ft3air/ft3fuel) (m3air/m3fuel) 1) (ft3air/ft3fuel) 1)
Butane C4H10 31 31 27 27
Natural gas 9.5 9.5 8.5 8.5
Propane C3H8 24 24 22 22
Town gas 4 4 3.8 3.8
Fluids (m3air/literfuel) (ft3air/galfuel) (m3air/literfuel) (ft3air/galfuel)
Gas oil
9.8
1570 10.4 1670
Heavy fuel oil 10.8 1730 11.6 1860
1) Combustion of a fuel gas creates a flue gas with higher density than the fuel gas and the combustion air. Check stoichiometric combustion.
2) Volume at standard pressure

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