Features
THE WOOD GASIFICATION PROCESS
Gasification process occurs as follows: -
Drying and heating wood until the release of gases (hydrogen and carbon monoxide).
- Burning of gas mixture in lower chamber at 2200°F.
- Transfer of the flue gasses to heat exchanger on the back of the boiler.
- Ejecting the gasses though the chimney pipe.
The best indicator of successful wood gasification is the lack of smoke exiting the chimney.
WOOD AS A FUEL
Wood is a renewable resource like
solar, water or wind power. They are all energy sources, which never
become depleted, unless improperly managed. Wood storing reduces its
moisture and simultaneously increases its heating value (energy volume,
which may be used up during burning process).
Modern boilers utilizing wood in
gasification processes use energy contained in wood with efficiency that
is three times higher than traditional boilers. Smoke and other
emissions are cut to a very low level, making our boilers very nature
friendly.
BioMass Gasification Boilers are adapted for burning of any kind of wood
ranging from sawdust to chunks of wood. The best way to achieve
recommended wood moisture is to cut timber during the springtime, and
let it season in a shed or under a cover.
1. FUEL SOURCES
The recommended source of fuel for
the BioMass boiler is cut and split firewood that has a moisture content
between 20% and 35%. Log size should be around 6 inches in diameter and
about 20 inches in length for the BioMass 40 and up to 30 inches in
length for the BioMass 60. Smaller size wood can be used as well,
including briquettes, artificial logs, wood pellets, and corn cobs with
kernels. Additional fuel sources like dry wood chips and saw dust can be
added along with dry logs.
2. BOILER CONSTRUCTION AND DESIGN
The BioMass boiler’s WATER JACKET is
made out of 1/4” boiler plate steel. The HEAT EXCHANGER is made out of
multiple 3-inch diameter fire-tube boiler tubes (0.150 inch in
thickness). Exhaust gases are released into a 6-inch diameter chimney
outlet. Special construction of the BioMass boiler allows for a very
efficient heat exchange from the boiler into the heating system. The
OUTER INSULATION JACKET, made out of mineral wool, minimizes heat loss
from the boiler, allowing for the maximum amount of heat transfer from
the boiler into the heating system.
3. HOW THE BOILER WORKS
During the gasification process, wood
inside the loading/burning chamber is dried and gasified. The gas
(smoke) produced is drawn down through the ceramic nozzle into the
ceramic-lined gasification chamber with a blower and burned at very high
temperatures. The hot, burned gas travels up through the heat exchanger
tubes, out the exhaust opening and into the chimney. The heat of
gasification (around 2200°F)
completely burns off virtually all smoke and particles. Gasses released
from the chimney are practically invisible and do not contain unburned
particles.
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