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Numerical computation of a circulating fluidized bed combustor
Author(s) -
Huilin Lu,
Rushan Bie,
Lidan Yang,
Guangbo Zhao,
Xiu Tan
Publication year - 1998
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/(sici)1099-114x(199812)22:15<1351::aid-er447>3.0.co;2-3
Subject(s) - combustor , fluidized bed combustion , mechanics , fluidized bed , computation , boiler (water heating) , energy balance , environmental science , petroleum engineering , nuclear engineering , engineering , meteorology , waste management , chemistry , thermodynamics , combustion , physics , computer science , organic chemistry , algorithm
A mathematical model to describe a circulating fluidized‐bed combustor is presented. A modified two‐phase model which was used in the bubbling fluidized‐bed combustor is considered to simulate the dense zone of the bottom section. For the upper section of the bed the momentum and energy‐balance equation are used to predict the temperature and velocity profiles for the gas and the particles. The model performs mass balances for the chemical gas species (O 2 , H 2 O, CO, CO 2 and SO 2 ) with consideration being given to the last for retention by limestone particles. The model is applied to typical conditions of a circulating atmospheric fluidized‐bed boiler and the simulation results show the expected trends. © 1998 John Wiley & Sons, Ltd.