Abstract
2D and 3D simulations of gas species diffusion in a pseudo-2D bubbling fluidized bed
were carried out and compared to experimental measurements. Tracer gas
concentration and solids velocity profiles measured throughout the bed showed great
deviations of the 2D simulations due to negligence of the friction on the large front and
back walls of the pseudo-2D unit and the inability to resolve gas species gradients
across the thickness of the bed. 3D simulations circumvent these limitations and result
in much more reasonable comparisons with experimental data. A clear lack of gas
species diffusion was observed, however, and this was attributed to the negligence of
particle-induced diffusion of gas species within the bed. Further work is recommended
to investigate the modelling of particle-induced gas species diffusion in fluidized bed
reactors.
Original language | English |
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Title of host publication | Fluidization XIV, 26-31 May 2013, Noordwijkerhout, The Netherlands |
Pages | PM93- |
Publication status | Published - 2013 |
Event | conference; Fluidization XIV; 2013-05-26; 2013-05-31 - Duration: 26 May 2013 → 31 May 2013 |
Conference
Conference | conference; Fluidization XIV; 2013-05-26; 2013-05-31 |
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Period | 26/05/13 → 31/05/13 |
Other | Fluidization XIV |