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LES‐Lagrangian modelling on gasification of combustible solid waste in a spouted bed
Author(s) -
Xie Jun,
Zhong Wenqi,
Jin Baosheng
Publication year - 2014
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.21941
Subject(s) - mechanics , turbulence , large eddy simulation , lagrangian , flow (mathematics) , conical surface , materials science , equivalence ratio , municipal solid waste , waste management , chemistry , engineering , mathematics , composite material , physics , combustion , combustor , organic chemistry , mathematical physics
A three‐dimensional numerical model is developed to simulate gasification of combustible solid waste in a spouted bed. Both complex gas–solid flow and chemical reactions are considered. The particle motion is modelled by the Lagrangian method and the gas motion by the large eddy simulation (LES) turbulent model. Calculations were carried out in a cylindrical spouted bed with a diameter of 160 mm, a height of 900 mm, and a conical base of 60°. Effects of equivalence ratio (ER) on product gas compositions were investigated. The flow patterns, profiles of temperatures and gas compositions in the reactor were also discussed.