What is the effect of fuel particle size on the combustion share in circulating fluidized bed boilers?
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What is the effect of fuel particle size on the combustion share in circulating fluidized bed boilers?
When the fuel particle size is too small, the proportion of coal combustion in the dense phase region is relatively low; for coals within the same size range, the combustion proportion also varies depending on the proportion of particles in each phase. When the fraction of fine particles increases, a stripping phenomenon occurs, with a large amount of fine particles being blown into the dilute phase region, thereby increasing their combustion fraction; the opposite is true when the fuel particle size is too large.