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Title: Modeling and measurement of electrostatic spray behavior in a rectangular throat of pease-anthony venturi scrubber
Authors: Yang, H.T.
Viswanathan, S.
Balachandran, W.
Ray, M.B. 
Issue Date: 1-Jun-2003
Source: Yang, H.T., Viswanathan, S., Balachandran, W., Ray, M.B. (2003-06-01). Modeling and measurement of electrostatic spray behavior in a rectangular throat of pease-anthony venturi scrubber. Environmental Science and Technology 37 (11) : 2547-2555. ScholarBank@NUS Repository.
Abstract: This paper presents the simulation and experimental results of the distribution of droplets produced by electrostatic nozzles inside a venturi scrubber. The simulation model takes into account initial liquid momentum, hydrodynamic, gravitational and electric forces, and eddy diffusion. The velocity and concentration profile of charged droplets injected from an electrostatic nozzle in the scrubber under the combined influence of hydrodynamic and electric fields were simulated. The effects of operating parameters, such as gas velocity, diameter of the scrubbing droplets, charge-to-mass ratio, and liquid-to-gas ratio on the distribution of the water droplets within the scrubber, were also investigated. The flux distribution of scrubbing liquid in the presence of electric field is improved considerably over a conventional venturi scrubber, and the effect increases with the increase in charge-to-mass ratio. Improved flux distribution using charged droplets increases the calculated overall collection efficiency of the submicron particles. However, the effect of an electric field on the droplet distribution pattern for small drop sizes in strong hydrodynamic field conditions is negligible. Simulated results are in good agreement with the experimental data obtained in the laboratory.
Source Title: Environmental Science and Technology
ISSN: 0013936X
DOI: 10.1021/es0261067
Appears in Collections:Staff Publications

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