Title :
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
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;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.729855
