The hydrodynamic behaviour of a novel flat plate photocatalytic reactor for water treatment is investigated using CFD code FLUENT. The reactor consists of a reactive section that features negligible pressure drop and uniform illumination of the photocatalyst surface to ensure improved photocatalytic efficiency. The numerical simulations allowed the identification of several design issues in the original reactor, which include extensive boundary layer separation near the photocatalyst support and regions of flow recirculation that render a significant portion of the reactive area. The simulations reveal that this issue could be addressed by selecting the appropriate inlet positions and configurations. This modification can cause minimal pressure drop across the reactive zone and achieves significant uniformization of the tested pollutant on the photocatalyst surface. The influence of roughness elements types has also been studied with a view to identify their role on the distribution of pollutant concentration on the photocatalyst surface. The results presented here indicate that the flow and pollutant concentration field strongly depend on the geometric parameters and flow conditions of the reactor.
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ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
July 24–29, 2011
Hamamatsu, Japan
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4440-3
PROCEEDINGS PAPER
Flow Field Investigation in a Water Treatment Reactor Using Computational Fluid Dynamics
Saber Ahmed,
Saber Ahmed
Central Queensland University, Rockhampton, QLD, Australia
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M. G. Rasul,
M. G. Rasul
Central Queensland University, Rockhampton, QLD, Australia
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R. J. Brown,
R. J. Brown
Queensland University of Technology, Brisbane, QLD, Australia
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J. Esteban Duran
J. Esteban Duran
The University of British Columbia, Vancouver, BC, Canada
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Saber Ahmed
Central Queensland University, Rockhampton, QLD, Australia
M. G. Rasul
Central Queensland University, Rockhampton, QLD, Australia
R. J. Brown
Queensland University of Technology, Brisbane, QLD, Australia
J. Esteban Duran
The University of British Columbia, Vancouver, BC, Canada
Paper No:
AJK2011-03061, pp. 1479-1485; 7 pages
Published Online:
May 25, 2012
Citation
Ahmed, S, Rasul, MG, Brown, RJ, & Duran, JE. "Flow Field Investigation in a Water Treatment Reactor Using Computational Fluid Dynamics." Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D. Hamamatsu, Japan. July 24–29, 2011. pp. 1479-1485. ASME. https://doi.org/10.1115/AJK2011-03061
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