Deposition efficiency of dust particles on a single, falling and charged water droplet

Author

Adamiak, Kazimierz ; Jaworek, Anatol ; Krupa, Andrzej

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada

Volume

37

Issue

3

fYear

2001

Firstpage

743

Lastpage

750

Abstract

A numerical algorithm for simulating dust particle deposition on a charged spherical collector is presented in this paper. Trajectories of the charged dust particles are traced in three-dimensional space by solving the Newton equation, taking into account inertial, air drag, gravitational and electrostatic forces. The collector (charged droplet) falls down freely and its trajectory is also determined. A laminar viscous model is assumed for the airflow in the vicinity of the collector and modeled using the finite-element method in two-dimensional cylindrical coordinates. The deposition efficiency is defined in terms of the volume of space, from which all particles are deposited on the collector. The calculation results for different Stokes, Coulomb, and Reynolds numbers are given

Keywords

drag; dust; electric fields; electrostatic precipitators; electrostatics; finite element analysis; laminar flow; Coulomb number; Newton equation; Reynolds number; Stokes number; deposition efficiency; dust particles deposition efficiency; electrostatic forces; finite-element method; laminar viscous model; numerical algorithm; single falling charged water droplet; three-dimensional space; two-dimensional cylindrical coordinates; wet scrubbing; Drag; Electrodes; Electrostatic precipitators; Electrostatic processes; Equations; Finite element methods; Fluid flow; Industry Applications Society; Numerical simulation; Space charge;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.924754

Filename

924754