Deposition efficiency of dust particles on water droplets in electrostatic scrubbers

Author

Adamiak, Kazimierz ; Jaworek, Anatol ; Krupa, Andrzej

Author_Institution

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

Volume

3

fYear

1998

fDate

12-15 Oct. 1998

Firstpage

1919

Abstract

A numerical algorithm for simulating dust particle deposition on a charged spherical collector is presented in the 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 air flow in the vicinity of the collector and modelled 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. The calculation results for different Stokes, Coulomb and Reynolds numbers are given.

Keywords

drops; dust; electric charge; electrostatic precipitators; finite element analysis; water; 2-D cyclindrical coordinates; Coulomb numbers; Newton equation; Reynolds numbers; Stokes numbers; air drag forces; charged spherical collector; deposition efficiency; dust particle deposition simulation; dust particles; electrostatic forces; electrostatic scrubbers; finite element method; gravitational forces; inertial forces; laminar viscous model; numerical algorithm; three-dimensional space; water droplets; Computational modeling; Computer simulation; Drag; Electrodes; Electrostatic precipitators; Equations; Finite element methods; Fluid flow; Numerical simulation; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE

Conference_Location

St. Louis, MO, USA

ISSN

0197-2618

Print_ISBN

0-7803-4943-1

Type

conf

DOI

10.1109/IAS.1998.729855

Filename

729855