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Modeling of Char Holdup and Char Particle Size Distributions in Circulating Fluidized Bed Combustors
Author(s) -
Lücke K.,
Hartge E.U.,
Werther J.
Publication year - 2002
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/1521-4125(20020910)25:9<891::aid-ceat891>3.0.co;2-t
Subject(s) - char , fluidized bed combustion , combustion , particle size , particle (ecology) , materials science , fluidized bed , mechanics , particle size distribution , nuclear engineering , waste management , chemical engineering , environmental science , chemistry , physics , engineering , organic chemistry , geology , oceanography
As an initial step for predicting the energy conversion efficiency of circulating fluidized bed (CFB) combustors and for future emission modeling, a model is presented which estimates the char holdup and the spatial distribution of the char particle size distribution inside a CFB combustion chamber. The submodel describing the combustion of a single particle is divided into three steps, namely, devolatilization, primary fragmentation and char combustion, which are treated independently.