Performance estimation of a Venturi scrubber using a computational model for capturing dust particles with liquid spray

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A Venturi scrubber has dispersed three-phase flow of gas, dust, and liquid. Atomization of a liquid jet and interaction between the phases has a large effect on the performance of Venturi scrubbers. In this study, a computational model for the interactive three-phase flow in a Venturi scrubber has been developed to estimate pressure drop and collection efficiency. The Eulerian-Lagrangian method is used to solve the model numerically. Gas flow is solved using the Eulerian approach by using the Navier-Stokes equations, and the motion of dust and liquid droplets, described by the Basset-Boussinesq-Oscen (B-B-O) equation, is solved using the Lagrangian approach. This model includes interaction between gas and droplets, atomization of a liquid jet, droplet deformation, breakup and collision of droplets, and capture of dust by droplets. A circular Pease-Anthony Venturi scrubber was simulated numerically with this new model. The numerical results were compared with earlier experimental data for pressure drop and collection efficiency, and gave good agreements. (c) 2006 Elsevier B.V. All rights reserved.
Publisher
Elsevier Science Bv
Issue Date
2006-12
Language
English
Article Type
Article
Keywords

SUBSONIC CROSS-FLOWS; PRESSURE-DROP; ATOMIZING SCRUBBERS; BREAKUP; ATOMIZATION; PREDICTION; COLLECTION; SIMULATION; EFFICIENCY; JETS

Citation

JOURNAL OF HAZARDOUS MATERIALS, v.138, no.3, pp.560 - 573

ISSN
0304-3894
DOI
10.1016/j.jhazmat.2006.05.105
URI
http://hdl.handle.net/10203/16932
Appears in Collection
AE-Journal Papers(저널논문)
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