An electrostatic precipitator (ESP) is a device that charges airborne particles and collects them on electrodes of opposite polarity. However, its effectiveness is limited for high-inertia particles. In this study, a novel ESP incorporating a swirling flow was designed to enhance collection efficiency by combining centrifugal and Coulomb forces. A cylindrical device equipped with a slit nozzle was developed, in which particles are charged by corona discharge from a disk electrode. Numerical simulations confirmed that the charged particles are immediately collected on the electrodes, achieving a high collection efficiency exceeding 99%.
Degawa et al. (Wed,) studied this question.