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Development of Industrial Wood Pellet Boiler with High Safety  

Chung, Chan Hong (Daegu University)
Park, Min Cheol (Daegu University)
Lee, Seong Young (Ssangma Machine, Co., Ltd.)
Publication Information
Journal of Applied Reliability / v.13, no.1, 2013 , pp. 31-44 More about this Journal
Abstract
Recently, due to the high rise of energy costs and environmental problem issues, much attention has been paid to wood pellets. Wood pellets are produced by compressing woody biomass into cylindrical form. Wood pellets are suitable for use at various scales in industrial furnaces for heat production to replace conventional fossil fuel energy sources since the use of wood pellet that is carbon neutral can alleviate global warming. This study presents the result of developing two industrial wood pellet boilers with high safety having capacities of 290kW and 440kW. Efficiency has been improved by using a rotating screw bar grate burner. Special attention has been paid to the improvement of the safety of the wood pellet boilers from backfire by adopting a triple protecting system composed of a rotary feeder, an air curtain, and a backfire protecting DC-fan.
Keywords
Wood Pellet; Pellet Boiler; Safety; Backfire Protection;
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