Modeling of fuel mixing in fluidized bed combustors
Journal article, 2008

This paper presents a three-dimensional model for fuel mixing in fluidized bed combustors. The model accounts for mixing patterns which were experimentally shown to govern mixing in risers with geometry and operational conditions representative for furnaces in fluidized bed combustors. The mixing process is modeled for three different solid phases in the furnace and the model, which includes the return leg, can be applied both under bubbling and circulating regimes. The semi-empirical basis of the model was previously validated in different large-scale fluidized bed combustors and is combined with a model for fuel particle conversion to obtain the fuel concentration field. Model results are compared with experimental data from the Chalmers 12 MW th CFB combustor, yielding a reasonable agreement. © 2008 Elsevier Ltd. All rights reserved.

Author

David Pallarès

Chalmers, Energy and Environment, Energy Technology

Filip Johnsson

Chalmers, Energy and Environment, Energy Technology

Chemical Engineering Sciences

0009-2509 (ISSN)

Vol. 63 23 5663-5671

Subject Categories

Energy Engineering

DOI

10.1016/j.ces.2008.07.035

More information

Created

10/6/2017