Modeling of multiphase combustion and deposit formation in a biomass-fed furnace

A comprehensive computational model for biomass combustion is presented, featuring a solid phase combustion model, a fluid dynamic model for the gas phase, and a solid particle transport and deposit formation model. The submodel developed to track particle trajectories is briefly outlined. The model...

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Bibliographic Details
Published in:Energy (Oxford) 2010-07, Vol.35 (7), p.3008-3021
Main Authors: Venturini, P., Borello, D., Iossa, C., Lentini, D., Rispoli, F.
Format: Article
Language:English
Subjects:
Applied sciences
Biomass
Combustion of solid fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Multiphase flows
Packed bed combustion
Particle cloud tracking model
Particle deposition
Stretched laminar flamelets
Theoretical studies. Data and constants. Metering
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Summary:A comprehensive computational model for biomass combustion is presented, featuring a solid phase combustion model, a fluid dynamic model for the gas phase, and a solid particle transport and deposit formation model. The submodel developed to track particle trajectories is briefly outlined. The model is implemented on the Finite Element code XENIOS++, and a test case is considered of a furnace burning wooden biomass chips added with water and inert material; a dedicated flamelet library is worked out to model combustion. Results underline the capability of the code to predict combustion conditions and, in particular, the growth rates of deposits of different particle size over the furnace walls, as well as the most critical locations for particle deposition.
ISSN:0360-5442
DOI:10.1016/j.energy.2010.03.038