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The maximum power that a machine or system can produce or carry safely. The maximum instantaneous output of a resource under specified conditions. The capacity of generating equipment is generally expressed in kilowatts or megawatts.
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The total investment needed to complete a project and bring it to a commercially operable status. The cost of construction of a new plant. The expenditures for the purchase or acquisition of existing facilities.
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Cubic feet per minute (1000 cfm = 0.472 cubic meters per second, m3/s)
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The principal chemical constituent of cell walls of plants: a long chain of simple sugar molecules.
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The remains of solid biomass that has been incompletely combusted, such as charcoal if wood is incompletely burned.
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A machine that produces wood chips by knife action.
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Woody material cut into short, thin wafers. Chips are used as a raw material for pulping and fiberboard or as biomass fuel.
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Tree, usually evergreen, with cones and needle-shaped or scalelike leaves, producing wood known commercially as softwood.
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The sequential production of electricity and useful thermal energy from a common fuel source. Reject heat from industrial processes can be used to power an electric generator (bottoming cycle). Conversely, surplus heat from an electric generating plant can be used for industrial processes, or space and water heating purposes (topping cycle).
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Two or more generation processes in series or in parallel, configured to optimize the energy output of the system.
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The combination of a gas turbine and a steam turbine in an electric generation plant. The waste heat from the gas turbine provides the heat energy for the steam turbine.
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Burning. The transformation of biomass fuel into heat, chemicals, and gases through chemical combination of hydrogen and carbon in the fuel with oxygen in the air.
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The air fed to a fire to provide oxygen for combustion of fuel. It may be preheated before injection into a furnace.
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(actual heat produced by combustion) divided by (total heat potential of the fuel consumed)
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Forested land which is capable of producing new growth at a minimum rate of 20 cubic feet per acre/per year, excluding lands withdrawn from timber production by statute or administrative regulation.
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The ability of certain hardwood species to regenerate by producing multiple new shoots from a stump left after harvest.
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A stack of wood consisting of 128 cubic feet (3.62 cubic meters). A cord has standard dimensions of 4 x 4 x 8 feet, including air space and bark. One cord contains about 1.2 U.S. tons (oven-dry), i.e. 2400 pounds or 1089 kg.
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