Global warming and climate change are nowadays one of the most important issues facing us. Without changes to how we create and use energy the effects of climate change could become enduring and irrevocable. The effects of increasing temperatures would affect every aspect of our lives, and radically affect crops and food production. The rising temperatures linked with global warming as due to increasing the CO2 levels in the atmosphere. Naturally there is a fairly constant level of carbon within the atmosphere, however human influence is dramatically increasing these CO2 levels. This is due to our heavy reliance on fossil fuels to meet our energy demands. Our cars for example are one of the largest contributors of CO2 into the atmosphere. We need to look to alternative and more importantly renewable energy sources that are either low carbon or carbon neutral. Well know alternative and renewable technologies are solar and wind. Both these forms of technology capture energy that is almost always free, and will play an central role in our energy future. However both these of these energy technologies rely on energy that is not always available and they cannot meet all our energy demands. Biomass, which is any natural mater, which can be used as a fuel source, is a source of energy many people over look.
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Wood pellets and other types of biomass pellets is a uncomplicated but effect use of biomass energy. Pellets in some form or another are used in many different industries, for example the animal feed industry is now the principal sector, which produces pellets. However the energy pellet industry and particularly the wood pellet fuel industry over the next few years should overhaul the feed pellet industry. Pellets have very similar properties to a liquid and flow well through hoppers and are ideal for automatic systems in stoves and boilers.
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Pellet presses are used to manufacture pellets for either the animal feed industry or the fuel pellet industry. The pellet press contains a die and a set of rollers. The die contains holes through which the raw material is compressed to form pellets. The diameter of the holes depends on the use of the end product, for example stove pellets are a much smaller diameter than power station pellets. To produce a pellet the raw material needs to be rather dry, however some humidity is needed to help the pellet form. Also a key condition is heat, as to hold the pellet together lignin within the raw matter is melted. Once the pellet exits the press the lignin then cools to form a rock-hard, dense pellet. Over the next few years there will be a apparent increase in the pellet market development.
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Due to the call for to tackle climate change and global warming, particular buzzwords get thrown about. Renewable energy is one of the words then again many people don’t really understand what is and what isn’t renewable energy. For an power source to be renewable, the resources, which were used to generate the energy, must be replaced within the life of its use. Fossil fuels for example are forms of none renewable energy, as our rate of consumption of fossil far exceeds their normal development and replacement. Wind, solar and geothermal are forms of alternative energy, as the source of power is almost always available.