CFD modelling of the fast pyrolysis of biomass in fluidised bed reactors. Part B: Heat, momentum and mass transport in bubbling fluidised beds
CFD modelling of the fast pyrolysis of biomass in fluidised bed reactors. Part B: Heat, momentum and mass transport in bubbling fluidised beds
The fluid–particle interaction inside a 150 g/h fluidised bed reactor is modelled. The biomass particle is injected into the fluidised bed and the heat, momentum and mass transport from the fluidising gas and fluidised sand is modelled. The Eulerian approach is used to model the bubbling behaviour of the sand, which is treated as a continuum. Heat transfer from the bubbling bed to the discrete biomass particle, as well as biomass reaction kinetics are modelled according to the literature. The particle motion inside the reactor is computed using drag laws, dependent on the local volume fraction of each phase. FLUENT 6.2 has been used as the modelling framework of the simulations with the whole pyrolysis model incorporated in the form of user-defined function (UDF). The study completes the fast pyrolysis modelling in bubbling fluidised bed reactors.
cfd, fluidised bed, fast pyrolysis, heat transfer, particle modelling
1036-1045
Papadikis, K.
01d5fa76-0d60-47a1-96dc-516cbf7eb1a4
Gu, S.
a6f7af91-4731-46fe-ac4d-3081890ab704
Bridgwater, A.V.
dfb0fe37-6c36-4806-bce5-a847bea52248
March 2009
Papadikis, K.
01d5fa76-0d60-47a1-96dc-516cbf7eb1a4
Gu, S.
a6f7af91-4731-46fe-ac4d-3081890ab704
Bridgwater, A.V.
dfb0fe37-6c36-4806-bce5-a847bea52248
Papadikis, K., Gu, S. and Bridgwater, A.V.
(2009)
CFD modelling of the fast pyrolysis of biomass in fluidised bed reactors. Part B: Heat, momentum and mass transport in bubbling fluidised beds.
Chemical Engineering Science, 64 (5), .
(doi:10.1016/j.ces.2008.11.007).
Abstract
The fluid–particle interaction inside a 150 g/h fluidised bed reactor is modelled. The biomass particle is injected into the fluidised bed and the heat, momentum and mass transport from the fluidising gas and fluidised sand is modelled. The Eulerian approach is used to model the bubbling behaviour of the sand, which is treated as a continuum. Heat transfer from the bubbling bed to the discrete biomass particle, as well as biomass reaction kinetics are modelled according to the literature. The particle motion inside the reactor is computed using drag laws, dependent on the local volume fraction of each phase. FLUENT 6.2 has been used as the modelling framework of the simulations with the whole pyrolysis model incorporated in the form of user-defined function (UDF). The study completes the fast pyrolysis modelling in bubbling fluidised bed reactors.
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Published date: March 2009
Keywords:
cfd, fluidised bed, fast pyrolysis, heat transfer, particle modelling
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Local EPrints ID: 156213
URI: http://eprints.soton.ac.uk/id/eprint/156213
ISSN: 0009-2509
PURE UUID: 8d9ce238-ccdc-4c8f-97e6-fac4637b25c0
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Date deposited: 01 Jun 2010 09:19
Last modified: 14 Mar 2024 01:42
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Contributors
Author:
K. Papadikis
Author:
S. Gu
Author:
A.V. Bridgwater
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