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Solid fuels particles fragmentation during the periodic combustion

Gajewski W., Kijo-Kleczkowska A.

Archivum Combustionis

2006

Vol. 26 nr 1-2

63-81

The paper present the experimental results, referring to the coal particles combustion in the conditions of fluidized bed. Periodicity of the coal particles combustion process results from the circulating movement of the material in the boiler: the combustion chamber, the cyclone and the downcomer. The combustion process in the combustion chamber of the CFB is determined by three processes: the cyclic coal particles combustion, the thermal fragmentation of coal and the attrition of coal particles. The paper focuses on the determination of the combined effect of both fragmentation and the cyclic coal particles combustion.