Title :
Particle charging by unipolar ionic bombardment in an AC electric field
Author_Institution :
Dept. of Electr. Eng., Univ. of Western Ontario, London, Ont., Canada
Abstract :
A numerical technique for simulating electrical conditions in a charging device for high resistivity powders in an electrostatic precipitator is presented. The device consists of two independent sets of electrodes; the first one, supplied with high DC voltage, produces the ionic discharge, and the second, connected to an AC voltage source, prevents precipitation of charged particles. The algorithm presented predicts the electric field and space charge density in the charging zone and then simulates trajectories of particles and the rate of charging. The results of simulation in a number of cases show the influence of different parameters on the work of the device
Keywords :
discharges (electric); electric fields; electrodes; electrostatic precipitators; ion beam applications; powders; space charge; AC electric field; AC voltage source; charged particles; charging rate; charging zone; electrodes; electrostatic precipitator; high DC voltage; high resistivity powders; ionic discharge; particle charging; particle trajectories simulation; precipitation prevention; space charge density; unipolar ionic bombardment; Conductivity; Electric fields; Electrodes; Electrostatic precipitators; Fault location; Numerical simulation; Particle charging; Powders; Prediction algorithms; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-1993-1
DOI :
10.1109/IAS.1994.377628
