Numerical study of a duct-type ESP with W-type collecting electrodes and different circular corona electrodes radius

Abstract

Electrostatic precipitators (ESPs) have become one of the most essential instruments for removing harmful particles from a wide range of industries. Many ongoing investigations in this field are continually improving because of the inherent privileges that emerge from the usage of an ESP. Different configurations of collecting and discharge electrodes must be studied in order to improve the performance of ESPs. Many researchers are working on enhancing current models in a variety of ways. The purpose of this research is to investigate the W-type configuration of collecting electrodes with various corona electrode diameters in a single-stage ESP. Using the COMSOL Multiphysics simulation tool, the results obtained with W-type are compared in two cases, case A is for 3 corona wires and case B is for 7 corona wires, with 0.75mm, 1mm, and 1.25mm. The consequences of this work show the influence of changing the corona radius size on the electric potential distribution, electric field strength, current density distribution, space charge density distribution, and collecting efficiency when W-type collecting electrodes are used for two cases.