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The 4 Gasifier ZonesTHE DRYING ZONE: Wood is fed into the gasifier at the top. This wood is initially heated and dried from the heat being generated below it. THE PYROLYSIS ZONE: Here the wood will reach a temperature of 250 degrees and begine to break down into smaller pieces THE OXIDATION ZONE: This is the area where the air is introduced causing a rapid rise in temperatures up to 1500 degrees centigrade. THE REDUCTION ZONE: The chemical reactions that take
place in the reduction zone produce a combustible gas which
can be used as fuel. This combustible gas then flows through
a filter and is suitable for internal combustion engines.
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General InformationIf you decide to install a gasifier on a vehicle, please keep in mind that there is quite a difference between using wood and using gasoline. With gasoline, you need not give any thought to getting into the car, turning on the ignition key and starting the engine. A wood burner requires a bit more thought and time, not only to get it started (approx 30 minutes) but to keep it fueled as you make your way from one place to another. You also have to take care of the burned ashes and other residue requiring a storage container for the burned ashes. During World War 2, more than a million vehicles buses, trucks, motorcars, boats and trains - were powered by gasifiers fueled by wood, charcoal, peat or coal. The gas generated when wood, charcoal or coal is burned in the gasifier amounts to about 40 per cent combustible gases, mainly carbon monoxide, hydrogen and some methane. The rest are non-combustible and consists mainly of nitrogen, carbon dioxide and water vapor. Conversion of a gas engine to a gasifier usually results in reduced power output and is based mostly on the type of fuel to be burned in the gasifier. Charcoal is the best fuel that you can use in the gasifier. If you choose to use wood, it is best to use wood blocks about 1-1/2"x 3". This wood should be as dry as you can possibly get it. Charcoal:Because good quality charocal contains almost no tars it
is a feasible fuel for all types of gasifiers. Good gasifier
charcoal is low in mineral matter and does not crumble or
disintegrate easily. Wood:Most woods have ash contents below two percent and are
therefore suitable fuels for gasifiers |
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