Impact of Discharge Electrode Positioning on Nanoparticle Collection in a Single-Stage Wire-Plate Electrostatic...

The electrostatic precipitator is used to collect particles and reduce their negative impacts on the environment and human health. The present work investigated the influence of the discharge electrode position on nanoparticle electrostatic precipitation. For that, experiments were performed with 1 and 3 discharge electrodes, with the inlet spacings varying from 1.5 to 28.5 cm, referring to the distance between the beginning of the collecting plate and the first discharge electrode. Under most conditions, the inlet spacings for wire positioning in the central region of the electrostatic precipitator achieved the highest collection efficiencies, because the high electric field region was in the center of the equipment duct and provided more uniform particle charging. However, high collection efficiencies were also achieved using the other inlet spacings, especially with lower air velocities and higher electric fields.