Specifics At How A Firewood Pellets Are Made In A Pellet Press
At present the world is facing many challenges in terms of supporting an economic recovery and at the same time continuing changes to our power supply change to tackle global warming. Our existing energy needs are met almost entirely by oil, gas and coal. The trouble is the incineration of these types of fossil fuel energy is responsible for increased global temperatures. Fossil fuels are a form of trapped carbon from deep underground. When we burn these fuels we are re-introducing carbon back into the air. The carbon in the atmosphere acts like a massive mirror, reflecting the suns power back at the planet. Therefore we need to shift away from carbon positive fuels on to more carbon neutral, and possibly carbon negative fuels. Biomass is any form of natural matter, which can be used as a fuel source. This includes wood waste from wood processing which has traditionally being turned into pellets. Premium fuel pellets are the highest grade of wood pellet fuel. Premium fuel pellets are formed mainly from pine and spruce residues.
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Pellets stoves and boilers are used to burn wood pellets competently to warmth homes and businesses. Pellet stoves are used to heat single rooms or offer added heating to the rest of the home. Both units work on the principle of a pellet hopper, auger feed system and burn pot. The auger controls the speed of pellet feed to order the warmth of the fire. The burn pot also has a hot rod starting to ignite the fire. Therefore wood pellets give a very low maintenance way to heat with wood. Also wood pellets burn much more efficiently than say logs, premium pellet fuel can produce as little as 0.5% ash content.
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A pellet press is the key piece of equipment when making wood pellets. There are various different designs of pellet press, however the theory of all the designs remains pretty much the same. The pellet configuration takes place in the die. A die is a piece of metal a few inches in depth with holes drilled through to form the pellet. The size of the holes depends on the function of the pellets. For example pellets for pellet stoves are regularly 6mm in diameter, however pellet boilers can use a larger diameter of pellet up to 8mm. To squeeze the wood through the die to form pellets a series of rollers condense the material through the holes in the die. When the pellets leave the die they are very hot, and must be cooled before they can be used. Not all pellets produced are of the same quality. A quality pellet should have a shell shine, and break cleaning into only a few pieces.
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