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Improved Combustion of Wood Waste in Industrial Boilers. Technology Applications Manual; Technology Transfer

机译：改善工业锅炉木材燃烧。技术应用手册;技术转让

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To provide information on optimum design and operation of existing wood residue fired spreader-stoker boilers, research was conducted on a pilot-scale spreader-stoker boiler. Wood waste combustion was investigated as a function of fuel size, moisture content, species, air:fuel ratios, and type of equipment used. Data collected from the test facility show that distribution of combustion air to the combustion chamber is critical to efficient operation of boilers. The results indicate that more complete combustion of wood residue is possible when excess air is reduced significantly below commonly used levels, the underfire air supply is reduced, and overfire air is distributed uniformly over the grate surface. Proper air distribution can increase the combustion by 3 to 8 percent and reduce particulate emissions by 20 to 30% below levels that occur at typical boiler operating conditions. Improved equipment and procedures for burning wood waste in industrial boilers were developed as a result of the tests. These improvements can be used in both existing and new boilers. An economic analysis showed that the improvements can be economically desirable both for retrofit of existing wood fired boilers and for incorporation in new boilers. (ERA citation 08:005521)

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