Today, the necessitate for renewable energy sources is clear. Our dependence on fossil fuels is no longer sustainable or affordable. There is a limited resource of fossil fuels, and as the global population continues to amplify at an accelerating rate, those supplies cannot meet the demands of a increasing population. Also, fossil fuels are now known to be a key contributor to climate change as well as carbon emissions. Therefore the necessitate for alternative fuel sources such as biomass is driven on fuel supply, fee plus environmental concerns. The issue is how do we capture the fuel from wood. Wood in its organic form is not an ideal fuel source. Biomass generally has a low bulk density and therefore also a low fuel density. Also the moisture content of raw biomass is generally too high to provide efficient combustion. Therefore the wood requires processing into a more useable form of fuel. Pellets are component of that biomass solution.
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As discussed, biomass in its raw form is not ideal as an fuel source due to its low density along with high moisture content. One of the simplest ways to turn wood into a highly proficient along with cheap form of fuel is to compress the biomass matter into pellets. Pellets are in the shape of small cylinders, which for fuel pellets are usually 6 or 8mm in diameter. Pellets have a much higher bulk and energy density compared to the raw material plus also a much lower moisture content below 10%. This enables the pellets to burn much more efficiently than raw wood. There are also developments to produce biomass pellets even more proficient, along with have a higher fuel density. One interesting practice is torrefaction. Torrefaction is where the wood is heated to between 200 plus 300 degrees, plus a lot of the unwanted volatiles which lessen incineration efficiency are burnt off. What is left is a much purer form of carbon which not only burns much more more efficiently than standard biomass as well as biomass pellets, it also have quite a few extra benefits. This payback include being hydrophobic, which means the pellets are not susceptible to moisture as energy pellets at present are. Torrefied biomass and biomass pellets are gaining ground, along with are the future.
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Converting wood energy into pellets brings home heating by means of solid biomass fuel away from high maintenance log stoves into the 21st century. Modern pellet stoves in addition to boilers have a variety of automated features which lessen the work load of the owner. For case in point energy hoppers on pellet burners usually hold at least a days worth of fuel. However some have large external hoppers which hold a years reserve. Through the demand for fuel from wood in addition to a greater demand for pellets, interest in pellet production has also grown significantly. Generating quality fuel pellets requires several pieces of gear from chippers, hammer mills, dryers and pellets mills also known as pellet machines along with pellet press. Operating this apparatus requires a definite knowledge of what each matter requires to produce quality pellets.
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