Particle population balance model for a circulating fluidized bed boiler

Abstract A two-dimensional particle population balance model has been developed for the particle size and density distributions in a circulating fluidized bed (CFB) boiler furnace based on analysis of particle properties and the core–annulus hydrodynamic model. The model, incorporating modules to consider fuel particle fragmentation, char combustion, particle attrition and gas–solid separation, is part of an overall model developed earlier by the authors to simulate the operation of a 12 MW CFB boiler. The model predictions for particle population in a CFB furnace agree well with the measurement data.

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