Wood fuels, wood based fuels, wood-derived biofuel
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All types of biofuels originating directly or indirectly from woody biomass |
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Woody biomass
Biomass from trees, bushes and shrubs
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Fuelwood; energy wood
Wood fuel where the original composition of the wood is preserved (Adapted from FAO unified bioenergy terminology (UBET)) |
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Firewood
Cut and split oven-ready fuelwood used in household wood burning appliances like stoves, fireplaces and central heating systems
(NOTE Firewood usually has a uniform length, typically in the range of 150 mm to 1000 mm.) |
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Log wood
Cut fuelwood in which most of the material has a length of 200 mm and above |
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Wood chips
Chipped woody biomass in the form of pieces with a defined particle size produced by mechanical treatment with sharp tools such as knives.
(NOTE 1 Wood chips have a subrectangular shape with a typical length 5 mm to 50 mm and a low thickness compared to other dimensions.) |
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Green chips
Wood chips made of fresh logging and thinning residues, including branches and tops |
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Whole-tree chips
Wood chips made of whole trees.
(EXAMPLE Wood chips containing stems with bark, branches, needles/leaves.) |
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Wood pellet
Densified biofuel made from pulverised woody biomass with or without additives usually with a cylindrical form, random length and typically 5 to 40 mm, with broken ends. |
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Wood briquette
densified biofuel made with or without additives in the form of cubiform or cylindrical units, produced by compressing pulverised biomass. |
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Quality assurance
Part of quality management, focused on providing confidence that the quality requirements will be fulfilled (Adapted from EN ISO 9000:2005) |
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Quality control
Part of quality management, focused on fulfilling the quality requirements (Adapted from EN ISO 9000:2005) |
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