MIL-HDBK-1003/6
Table 12
Typical Analysis of Dry Wood Fuels
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*
*
*
Most Woods
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*
*
*
Proximate Analysis, %
*
*
*
Volatile Matter
74.0 - 82.0
*
*
*
Fixed Carbon
17.0 - 23.0
*
*
*
Ash
0.5 - 2.2
*
*
*
*
*
*
Ultimate Analysis, %
*
*
*
Carbon
49.6 - 53.1
*
*
*
5.8 - 6.7
*
*
*
Oxygen
39.8 - 43.8
*
*
*
Sulfur
-----
*
*
*
0.0 - 0.1
*
*
*
*
*
*
Heating Value, Btu/Lb
8,560 - 9,130
*
*
*
*
*
*
Moisture, as received, %
36 - 58
*
*
*
*
*
*
Ash Fusion Temperature, deg F
*
*
*
Initial
2650 - 2760
*
*
*
Fluid
2730 - 2830
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Hog Fuel. The trimmings and bark left over from the manufacture of
5.1.4.3
lumber must be resized in a "hog" to facilitate feeding, rapid combustion, and
storage. These products, together with varying amounts of sawdust and
shavings are referred to as hog fuel. This fuel, as delivered to the furnace,
can average more than 50 percent moisture, most of which is in the cellular
structure of the wood.
Solid Waste. Solid waste is a very complex fuel because it
5.1.5
contains a wide variety of both combustibles (paper, wood, food, etc.) and
noncombustibles (cans, glass, various metals, etc.). The combustibles may
also include plastics which can be toxic when burned. Its value as an
alternate energy source is proportional to the amount of effort spent
preparing it for use. The approximate average heating value of typical solid
waste is 4,500 Btu/lb (10 485 kJ/kg). Refer to Table 13.
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