Calculation of ionized fields in DC electrostatic precipitators in the presence of dust and electric wind

A procedure is described for the numerical computation of the electric field and current density distributions in a DC electrostatic precipitator in the presence of dust taking into account the particle-size distribution. Poisson's and continuity equations are numerically solved by supposing that the coronating conductors satisfy Kaptzov's assumption on the emitter surfaces. Two iterative numerical procedures, both based on the FEM, are implemented for evaluating respectively the unknown ionic charge density and the particle charge density distributions.<>