Title :
Particle charging by unipolar ionic bombardment in an AC electric field
Author :
Adamiak, Kazimierz
Author_Institution :
Dept. of Electr. Eng., Univ. of Western Ontario, London, Ont., Canada
Abstract :
A numerical technique for simulating the electrical conditions in a charging device for high-resistivity powders 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 :
electric fields; electrodes; electrostatic precipitators; numerical analysis; space charge; AC electric field; charging rate; charging zone; electrodes; high-resistivity powders; ionic discharge; particle charging; particle trajectories; precipitation prevention; simulation; space charge density; unipolar ionic bombardment; Electric fields; Electrodes; Fault location; Numerical simulation; Particle charging; Powders; Prediction algorithms; Predictive models; Space charge; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
