Agriculture Reference
In-Depth Information
Thus, biomass is a renewable energy source since it will be available as
long as green plants can be grown. Biomass energy has been produced from
woody plants, herbaceous plants, manure, and solid wastes. When biomass
is burned, the process of combustion releases the stored chemical energy as
heat. The biomass can be combusted directly in a wood-burning fireplace or a
Woodwaste
21
Fuel oil
7
Electricity
12
Spent liqlior
38
Natural gas
19
Coal
3
(a)
LPG,
Fuel oil
6
Electricity
13
Natural gas
5
Woodwaste
74
(b)
Figure B7.1
Fuel sources for the (a) paper and (b) pulp in-
dustries. Biomass fuel, represented by wood waste and spent
liquor, make up themajority of end-use consumed energy, with,
60 to 75% from biomass.
From Energy Information Administration,
Estimates of U.S. Biofuels Con-
sumption 1989,
U.S. Department of Energy, Washington, DC, April 1991.
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