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Received November 19, 2012
Accepted February 26, 2013
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Effect of drainage channel dimensions on the performance of wave-plate mist eliminators
Faculty of Mechanical Engineering, Semnan University, Semnan, Iran
rafee@semnan.ac.ir
Korean Journal of Chemical Engineering, June 2013, 30(6), 1301-1311(11), 10.1007/s11814-013-0032-9
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Abstract
We investigated the effects of drainage channel dimensions on droplet removal efficiency and pressure drop of the gas droplet flow in a wave-plate mist eliminator. Droplet dispersion in turbulent gas flows is numerically simulated using eddy interaction model (EIM) and Eulerian-Lagrangian method. Reynolds stress transport model (RSTM) with enhanced wall treatment and shear stress transport (SST) k-ω model are used for simulating the turbulent airflow. Comparison between the numerical simulations and available experimental data shows that eddy lifetime constant (CL) can affect the results significantly, and by selecting suitable values of the eddy lifetime constant, both turbulence models give reasonable predictions of droplet removal efficiency. Simulations of gas droplet flow in the eliminators with various drainage channel dimensions show that the drainage channel length (LDC) has a greater effect on droplet removal efficiency than the drainage channel width (WDC).
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References
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Tian L, Ahmadi G, J. Aerosol Sci., 38, 377 (2007)
Verlaan CCJ, Ph.D. Thesis, Delft University of Technology, Delft, the Netherlands (1991)
Wang Y, Davies GA, IChemE Part A: Chem. Eng. Res. Des., 74, 232 (1996)
Wang Y, James PW, Chem. Eng. Res. Des., 76(8), 980 (1998)
Wang Y, James PW, Chem. Eng. Res. Des., 77(8), 692 (1999)
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Zamora B, Kaiser AS, Chem. Eng. Sci., 66(6), 1232 (2011)
Zhou Q, Leschziner MA, in 8th Symp. Turbulent Shear Flows, Technical University of Munich, Germany, September (1991)
