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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
are indicated in the table below:
| Fuel |
Theoretical air for combustion
Volume at standard pressure |
Theoretical flue gas
Volume at standard pressure |
| 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) |
(ft3air/ft3fuel) |
| 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 |
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ASTM Standard - Volume 05.06 Gaseous Fuels, Coal and Coke
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Flue Gases - Average Dew Point for Typical Fuels
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Fuels - Densities and Specific Volumes
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Optimal Combustion Processes - Fuels and Excess Air
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