Posts Tagged ‘Wood Pellets’
Wood is a rapidly rising sector of the renewable fuel marketplace, yet still an unknown to many. So how is wood was to produce heat along with electricity in the 21st century?
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Energy costs for the last decade have been on the rise. There are two main factors driving the amplify in costs. Firstly limits of supply of the fossil fuel resources cause many issues, along with the constantly mounting global need, particularly from rapidly developing nations such as India plus China. The other driving factor is the result of burning fossil fuels on the nature. Soon due to commitments to decrease carbon emissions, a range of green taxes are going to be placed on fossil fuels. These green taxes are designed to produce funds for green fuel projects, while also directing citizens to use less fuel.
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Biomass is one of the renewable energy options to reduce our dependence on oil plus additional fossil fuels. Wood refers to a wide selection of organic materials, which potentially can be was as a fuel source. The common interpretation of this is biomass, though that is a tiny component of the biomass energy possible, other much more plentiful materials of straws and grasses can also be used. Different wood fuels, do burn differently yet. Generally each wood in a compressed form has a similar heat value, though changes in ash content as well as corrosive effects can produce complications in some biomass burners.
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So how can we use wood, because combustion logs simply isn?t a present solution? Well the answer is in compression, into either pellets or briquettes. In a compressed form the fuel will burn much more efficiently, along with its produce a much more realistic way to haulage as well as feed fuels. By a uniform compressed material, for instance into a pellet, its possible to consume the fuel in automated combustion systems such as pellet stoves in addition to boilers. These automated burning systems are the 21st century adaptation of the basic log stove to warmth your dwelling or corporation. The energy can also be was to energy homes as well as business with answers such as the current warmth engines, which are based on steam engines.
Fuel, it’s a key worry of many in addition to should be a worry for us all. We are a seriously energy reliant nation, along with most of the energy we are reliant on we don?t manufacture our selves. For instance, you probably currently warmth you dwelling with oil or gas, as well as most of this energy will be approaching from the Middle East. Not only are we reliant on foreign energy, the resource of this energy is limited as well as requirement mounting. This only means one thing, and that?s the inevitable charge rises, which we are presently experiencing plus will carry on to experience into the future. Not only that, it has now turn out to be clear of how a great deal of a destructive result to the natural world the expend of the fuels is doing. As we burn fossil fuels we release carbon dioxide into the atmosphere. Carbon dioxide is a greenhouse gas, in the truth it acts to amplify the temperature of the earth. If we do not reduce our expend of fossil fuels, the outcome of climate alteration will turn out to be permanent plus irreversible.
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So this comes down to what changes can we produce to our fuel demands in addition to the resource of energy. Well to start by means of we do requirement to consume less fuel, but this is a great deal easier that it may seem at first. We waste huge amounts of energy, we still leave lots of appliances on stand by and leave lights on when not needed. Once energy savings have been manufactured, where we resource energy from can be looked at. Take energy for case, solar panels can be installed to generate your own electricity, but what about warming, well here wood pellets as well as a pellet stove can come in handy.
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Biomass pellets are where the waste from the biomass industry is compressed into pellet fuel. This energy can then be was mechanically in the pellet stoves along with boilers. These heating systems behave a great deal further like a current oil burner than an old log burner. Therefore biomass pellet ideas are a realistic up to date option to home warming. For smaller properties, its typically suitable to expend purely a biomass pellet stove, however for larger properties a biomass pellet boiler will be more suitable. Cleaning along with maintenance is low, in addition to can be carried out once a week with most burners.
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There are many diverse types of biomass, though biomass is the most commonly referred to source of biomass as an fuel source. Wood has been used for fuel manufacture for thousands of years, however for the last century, fossil fuels have taken centre stage as the many energy source. On the other hand now owing to costs of fossil fuels and the environmental impact. Wood plus biomass in general, is now having a revival. Now when many people think of using biomass for fuel, they simply think of the log fire, though modern wood energy is far beyond this. Even to the point where wood can be processed into liquid fuels, to create ethanol, bio-diesel and even jet fuel. This means we can keep much of our current infrastructure, our cars as well as planes in addition to just use one more fuel sourced from green energy resources. There is a lot of talk about turning travel all electric, however the problems by this are as follows. To change all vehicles as well as planes would need a lot time which we don’t have, as well as also a lot of energy which would still be sourced from fossil fuels. Instead of jumping straight in to electric vehicles, which are still relatively basic, liquid fuels from wood can be used to bridge the gap.
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Though, there is also the case of providing warmth for homes plus businesses, in addition to using electric for this purpose is not very efficient and not practical through the strain it would put on power plants. The cheapest and most practical solution is to upgrade biomass into an advanced solid fuel, pellets. Pellets have an improved density, low moisture content along with flow like a liquid. This means that automated systems can be designed to use the pellets, which will install within the modern lifestyle. Many different biomass resources can be processed into pellet form, though dissimilar types of biomass manufacture diverse grades of pellets.
To produce the lowest ash content pellet, only certain biomass residues are used. This may include pine, spruce plus oak for instance. On the other hand not all the material from the tree can be used. The material cannot contain bark, thinning’s or even leaves. If any of this matter is processed into the pellet, it will enlarge the ash content produced over the premium grade. These materials can be processed into a energy pellet, which clearly makes better use of obtainable resources, though the grade of pellet is referred to as a standard grade, plus demands a lower fee point.
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Once in pellet form, wood fuel pellets can be used in automated incineration systems to heat small along with large properties. For smaller properties, pellet stoves can be used, positioned most commonly in the main living space. To heat larger properties along with businesses biomass pellet boilers are more commonly used. Depending on the size of the integrated energy hopper, the stove or boiler could be used continuously for days even weeks. By way of a large silo placed outside, ample fuel for an entire year can be held on the property.
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Within the next few years, with a rapidly growing global population, along with limited fossil energy reserve, gas prices for instance are expected to amplify with 60%. These increases in costs are not sustainable or affordable to the average consumer, and they see very little benefit from supporting the suppliers of these fuels, who are often based abroad. With the recent economic crisis, energy along with energy need to play more of a role in supporting the local economy. Also, our dependence on fossil fuels is not only hitting our wallets, but also having a negative impact on the nature. Because of this fact governments are mounting taxation on the use of fossil fuels, which will produce them even more expensive. This is why wood in addition to wood systems call for to be used to provide an alternative fuel solution. The use of biomass would provide cheaper fuel, support the local economy as well as diminish the impact of our fuel needs on the natural world.
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Wood is an abundant energy resource. Practically all around you there is some source of wood would could be used in a sustainable way to generate energy. The extra great thing about biomass is, that we currently generate huge volume due to existing services and corporation that we have no use for in many cases. Even within the worlds largest cities. Take London for case, all year round trees around the city are managed to keep them healthy in addition to manageable. The wood generated from this process in in the tens of thousands of tons each year, plus still in many cases this would ends up in landfill. Sending this biomass to landfill is not only a waste as it could be used in biomass systems, it actually costs the council money twice. Once to have the trees serviced along with twice paying for landfill services. This would could be processed into pellets for example for biomass combustion systems. This would save the council on landfill costs, generate more jobs in processing the wood into pellets, as well as also save the council money using pellets instead of paying the high prices of oil in addition to gas. This is just one case in point of many.
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One of the simplest in addition to most efficient ways to use wood in a incineration system is to upgrade the pellets in a pellet manufacture system. Once the pellet is formed it is now is a highly durable and proficient form, by means of a high density and low moisture content. Pellets resemble small cylinders, along with for fuel pellets they generally have a diameter of 6mm for pellet stoves and 8mm for wood pellet boilers. The pellets are loaded into a hopper system plus fed on demand into the burn chamber. Here once up to temperature the pellets burnt hot in addition to clean, generating no visible smoke. Thanks to the very low moisture content. The systems used to create pellets at first seem very easy, however the detail is where quality along with efficient pellet construction lies. At first glance the process easy appears a system of compression into pellet form. On the other hand the characteristics of the matter will have a great impact on how well the biomass can compress into pellet form along with fuel consumption.
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Wood is now been explored to make a assortment of replacements for fossil fuels. One of the replacements is gas generated from wood. Through processes such as gasification, biomass can be broken down into its key mechanism, the gas shaped is referred to a syngas or synthesis gas. The process of gasification ca be carried out on a large or small scale.
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Wood gasification is a thermo-chemical process where the wood is broken down to create syngas. Syngas is made up of Carbon Monoxide, Hydrogen in addition to some Methane. This means the gas is highly flammable. By heating the biomass to over 300 degrees, the gasification process takes place. The gas may contain particulates and tar, plus for probable uses, such as combustion engines for instance the gas must be cleaned. If a gas containing tars is used in an internal combustion engine, it will not be long before the engine fails due to a build up of tar. A variety of filter mediums can be used to remove the tar along with particulates from the gas. These include even basic grass filters, to carbon filters along with passing the gas due to a liquid such as water. As mentioned this gas can be used in internal combustion engines. On the other hand as the gas contains less energy than a liquid energy, the ration between energy to air has to be increased. Generally a one to one ratio of syngas to air is used. During the second world war over a million vehicles were converted to run from syngas through the fact supplies of fossil fuels were restricted.
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Wood gas can be used as a transport fuel as it was in the second world war, on the other hand gas storage is tricky, along with attaching a gasifier to a vehicle is not a practical solution. Areas where wood gas can be used is where internal combustion engines are used as generators to create electricity. A gasifier could turn an expensive to run generator, into a means to remove waste plus generate free electricity. Biomass gas once cooled is also been used to make liquid fuels. For case algae can feed off the gas along with then be squeezed to create an oil, which can then be processed to create liquid fuels such as ethanol, bio-diesel plus even jet fuel. Gasifiers however like a consistent sized biomass material by a low moisture content, along with the ideal fuel for a gasifier is the pellet, as it also flows well though the gasifier energy hoppers. A gasifier can run on practically any biomass material, as well as pellets can be produced from practically any biomass material. Each pellet will have the same shape along with size, with a low moisture content. This means it is much easier to create gas consistently as the gasifier is running on a consistent fuel source. A pellet is simply a compressed version of the original biomass material, in addition to the main piece of tools used to achieve this compression is referred to as a pellet mill, pellet press or pellet machinery. A pellet mill is comprised of a series of compression rollers moving across the service of a die template by means of a series of holes. The rollers compress the material in to the die.
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A wide range of alternative sources of energy can be produced owing to using biomass to make biofuels. There are a wide selection of wood fuel products which can be referred to as biofuels. Wood can be processed in to gaseous, liquid in addition to solid forms of fuel. Gaseous biomass biofuels can be used to power generators to create electricity, or burned directly to generate warmth. Liquid wood biofuels can be produced to be used as transportation fuels, for cars as well as even jet fuel for planes. Biomass liquid biofuels can be created from corn, rape seed and algae to name but a few. On the other hand, yields from algae production are much more productive than corn for instance, and do not impact on food prices. Wood can also be processed into solid biofuels such as pellets. Pellets are predominantly used as a heating fuel for homes as well as businesses. On the other hand biomass is also often processed into pellets to be transported to additional process plants, to be constructed into liquid or gaseous biofuels. The reasons for this are that much more wood can be transported per time due to the increased density of the pellets. Therefore this also reduces the shipping costs of moving wood.
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As shown, wood can be manufactured into a range of biofuels, yet pellets are often at the start of all wood biofuel processes. A pellet is simply a compressed form of the wood. Owing to compression an increased bulk and energy density is achieved. Also, during the pellet construction process, most of the water from the wood is removed during drying. This gives the pellets a much higher calorific heat value. By way of a lower moisture content in addition to increased density means pellets burn much more efficiently than the original wood matter.
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In a compressed pellet form, the biomass can be used in modern plus advanced solid energy pellet combustion systems. Pellet stoves in addition to pellet boilers can use pellet energy in a highly automated fashion, to make minimal maintenance by way of maximum efficiency. Automated pellet burners have a hopper which can hold at least a days worth of fuel. Because of computer control of an auger feed system, the correct number of pellets to reach the required heat can be fed into the burn chamber. Therefore pellet stoves in addition to pellet boilers can be restricted via thermostat. To make wood biofuels such as energy pellets, requires a combination of skills, experience, apparatus knowledge plus the right tools. Each piece of pellet construction tools is suited to different raw materials. Matter density plays a large role in the type of tools that can be used. For example there is a difference in density of say wheat grass and hardwood. Owing to this difference in density, only some pellet mills can actually process biomass into pellet energy, where others simply don’t have adequate power, or operate at the incorrect speed. Supplementary factors such as moisture play a key role. Even a half a percent change in moisture can result power consumption by around 30%, which does add up.
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Wood is set to replace many of the fossil fuels we currently use for fuel. For case in point oil plus gas can be replaced by means of alternatives derived from wood products. Coal can be replaced by compressed biomass pellets. Torrefied wood along with biomass pellets can resemble coal in many ways, though without the carbon emission raise. Biomass can even be used to produce plastics from hemp for instance. The biomass cycle refers to how biomass is part of the organic carbon cycle, dissimilar fossil fuels. Fossil fuels are trapped forms of carbon from deep underground. Fossil fuels contain carbon from previous carbon cycles. By means of combustion fossil fuels we are releasing this carbon back into the atmosphere, therefore adding to the current carbon cycle and rising carbon dioxide levels which are partly responsible for climate change.
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Biomass on the other hand is component of the current unrefined carbon cycle. During the biomass growing cycle, carbon is consumed due to photosynthesis. During wood incineration this carbon is then released into the atmosphere. As new wood needs to be grown to provide a future fuel supply, this carbon dioxide is then consumed again. This means therefore that there is no net enlarge in the levels of carbon dioxide, in addition to wood is referred to as a carbon neutral energy source as it is part of the current carbon cycle. Using energy which is part of the wood cycle can help to lower global carbon emissions.
It is also important to remember that biomass is a alternative source of fuel. As the size of the global population continues to amplify, the require to use sources of fuel we can replace is a increasing concern. Biomass can be grown within the life cycle of its consumption. There is a great deal of wood formed today which is still regarded as waste. Therefore by means of purpose grown biomass a large proportion of our energy needs can be meet.
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Biomass is the main thought of biomass energy. This woody biomass can be sourced as a waste from the timber industry and from general woodland management. The biomass can also be a purpose grown biomass crop, though the choice of which wood to grow is obviously important. Oak for example burns very efficiently, yet is not sustainable as its growing cycle is far too slow. A more sustainable wood fuel crop is willow, or more specifically short rotation coppice willow. Within a 3 year cycle the willow can be harvested in addition to manufacture reasonable yields. Yet there is wood crop similar to biomass which produces even better yields within a shorter period. Hemp has only a 3 month rising cycle from seed as well as is ideal for energy pellets. Compressing wood into pellet form improves all aspects of the wood for better incineration results. The pellet construction process involves a lot of heavily engineered gear to within the forces in addition to pressures of pellet production. The main piece of gear is the pellet mill. Here is where pellet compression takes place under high pressure.
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There are a mixture of ways to generate green alternative energy. Wind plus solar power are well known forms of green fuel generation, yet biomass also has an important contribution to make. Biomass, dissimilar solar or wind can generate power on demand. A biomass power factory can take many forms, though one of the most accepted versions are using existing coal power plants. To create a move from coal power to wood, biomass pellets are been used in co-burning with coal. Trials have been very successful, along with the intention is to move more in addition to more to biomass pellets are the supply becomes more stable to meet the high demands of power plants. Once a coal power plant is moved over to a biomass power plant, emissions will be much lower as wood pellets burn much cleaner than using coal. Also, as wood pellets are component of the current organic carbon cycle, no supplementary carbon dioxide will be placed into the atmosphere. Some trials were conducted by means of wood chips instead of pellets. Yet the changes in chip density and moisture content were making it difficult to maintain a high burning efficiency. Upgrading an existing coal plant into a wood power plant saves a lot of time, fuel along with carbon emission compared to starting from scratch to build a brand new biomass power plant. Also a new sector of jobs can be created locally, processing local biomass biomass waste into energy pellets to be used in the wood power plant to manufacture electricity to power local homes along with businesses.
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Biomass used as a fuel for either heating or to generate electricity in a biomass power plant has huge probable. Wood can be utilizing waste resources or specifically grown fuel crops. The development of wood should be built around extra industries, in addition to then taking advantage of space that cannot be better utilized, for example with food crops. The advantages of biomass is that food as well as energy can be generated by means of just one crop, and food can be used food, and the reminder to be processed into a form of biomass energy. So by means of wheat or barley for case, the grass which was traditionally been burnt in the field can now be processed into fuel pellets. These fuel pellets can then be sent to the biomass power works or used to provide heating answers for the farm plus local area.
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The type of heating system the pellets can be used in could be a pellet stove or pellet boiler. The farm for instance where the grass to make the pellets is located would use a wood pellet boiler. The unit would be connected up to the existing central heating system as well as meet all the heating needs of the farm dwelling. The grass energy pellets could also be used to warmth animal building, which in many cases can help to save the farm thousands each year in energy costs. Depending of the chosen wood matter, the gear required will change. For instance straw pellets could be formed with a standard animal feed pellet mill, because of its low density. However, the same pellet mill would probably not be suitable for processing wood into energy pellets for heating systems.
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Before trying to answer the question of how does wood work, first we must summarize what biomass actually is. Wood is a collective term to generalise a group of natural materials which can be used as an fuel source. This includes biomass, crop waste as well as purpose grown fuel crops. Energy crops are wood recourses which have been evaluated on their yield probable and supplementary features. Not only must an fuel crop generate high yields, but what is also important is how long it takes to manufacture that yield plus how much time in addition to money has to be spend on the crop. For example hemp is a wood material which has huge likely, it has a wide selection of uses along with can be used a low ash, high fuel content energy. Importantly however hemp is very straightforward to grow, as it grows from seed plus can be harvested in only 3 months. Hemp produces some of the top yields as well as requires virtually no fertilizers in addition to maintenance.
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One of the key benefits of wood over supplementary forms of energy, specifically fossil fuels is the fact that biomass is a renewable fuel source. We can grow supplementary wood to replace the resources we use, plus within the life of its consumption. Wood is also part of the organic carbon cycle, this means biomass burning is actually carbon neutral different oil as well as gas combustion. Wood is essential a form of stored solar fuel. Through the process of photosynthesis fuel from the sun is created into cellulose. The traditional view as wood as an energy source has been the log fire. Yet wood now is a serious probable contributor to our energy requirements because of upgrading the wood. Biomass can be turned into gaseous energy, which can be used in internal incineration engines along with turbines to generate electricity on demand. Wood can also be processed into liquid fuels such as bio ethanol along with bio diesel. Though, in terms of heating applications, it makes more sense to use biomass in pellet form. Through a series of processes involving heat plus pressure practically all wood materials can be compressed into pellet form. Owing to producing a pellet the wood gains a amplify in density plus a reduction in moisture content. With a uniform shape plus size, pellets can flow in a similar fashion to liquids. This opens up various likely uses. For example pellet combustion ideas have a large hopper where the pellets are held, by way of an auger removal system at the base of the hopper. By means of additional wood materials in their raw form, material bridging in addition to blockages are common. On the other hand pellets do not have this issue and more fuel can be stored in the hopper.
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So in answering the question of how does wood work, in this respect the question is how is a wood pellet manufactured. The central piece of gear is the pellet mill. A pellet mill has two main mechanism the die template and roller section. At the wood enters the pellet mill, the roller section compresses the material owing to the die template. This generate immense warmth which melt the wood into pellet form.
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To capture along with store energy requires some form of system or process, and the example is true for biomass. So what are the costs of wood to capture, store plus use the fuel likely of biomass. Well, depending of the source of wood, the raw material costs can differ dramatically. Biomass is a collective term to describe an unrefined matter that can potentially used to generate warmth, electricity or one more source of power and energy. Yet, visibly some wood materials are more abundant than others, some grow faster than others and also important some wood materials are simply better plus producing fuel. The way biomass fuel should be approached is yet looking at what sources of wood we currently generate in other industries. The general sources of wood for fuel are wood, straws, grasses plus fuel crops. By way of the exception of fuel crops, wood, straw and grasses are produced in large volumes from extra industries. In many cases, much of this biomass is still regarded as a waste plus can be obtained for free along with costs nothing. Take the timber industry for case in point, through processing timber there are large volumes of sawdust generated which can be used for biomass. This sawdust up until a decade ago was routinely taken to land fill. No only did the manufacturers not generate any return on the sawdust, it was also costing them in landfill taxes. Wood pellet manufactures then started to collect this sawdust saving the create in landfill taxes. Now in some areas, the demand for sawdust is so high, the timber manufactures generate a healthy income from selling sawdust.
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Wood in its raw form is expensive to transportation as well as does not burn well, therefore some form of processing is required. Processing wood into pellet form is the cheapest in addition to most practical solution in most instances, on the other hand there are some costs involved in paying for in addition to operating the pellet works. On the other hand these costs can be reduced through sourcing quality second hand gear and also operating the works from free wood. Biomass can be upgraded into a gas to run a generator which can create a big difference in the running costs of the wood pellet plant.
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Costs are also involved in purchasing a new wood incineration system, yet through reduction in fuel costs, the costs of the new biomass system can be recovered within a few years. Now, these biomass incineration systems are not your basic log stoves, which which call for a lot of time and work to run. Modern pellet systems require very little maintenance, as well as can run for days even weeks without any work from the owner. So there are costs involved in installing a biomass system, yet there are more costs to be saved in fuel costs over the long as well as short term. The process of pellet construction obviously has costs involved in setting up a plant and operating it. However without the correct knowledge, the costs could be a great deal more. You necessitate the right knowledge to know which equipment is right for your raw matter to lessen the risks as well as costs of making energy pellets.
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