Simulation study on dust-holding performance of a new electrostatic precipitator with dielectric barrier electrodes

Xiong Wenlang, Zhang Wanyi, Lin Zhongping, Zhu Weidong and Duan Haining

2018.12.20

The new electrostatic precipitator consists of a standing electrode dust-collecting module and a needle discharge module, which collecting the charged particles in the channel. Simulates the flow field, electrostatic field and particle migration trajectory in the dust-collecting channel by COMSOL, a multi-physical field numerical analysis software. The results show that the dust-holding does not change the flow field, but changes the distribution of the electrostatic field. The charges accumulate on the surface of the dust collector plate, forming an inverse electric field and weakening the original electric field strength, thus weakening the ability to collect particles, resulting in a decrease of the device’s primary passing efficiency. In the most time of dust-holding, the simulated purification efficiency is basically consistent with the experimental results, and the model has good accuracy.