Experiment and numerical simulation investigation on wire-plate electrostatic precipitator with expanded-shrunk spoilers

Autor: Gu Xiaoyi, Xu Weigang, Binye Yu, Bu Shi, Te Sun, Lingyan Zhang, Liu Lin, Lin Zhang, Jiandong Li, Ling Zhang, Cao Ziyong
Rok vydání: 2022
Předmět:
Zdroj: Powder Technology. 395:60-70
ISSN: 0032-5910
DOI: 10.1016/j.powtec.2021.09.064
Popis: In this paper, three types of wire-plate electrostatic precipitators with expanded-shrunk spoilers (ESP-ESSs) were proposed. The influences of different geometric characteristics and arrangements of the expanded-shrunk spoilers (ESSs) on the electric field intensity, airflow field, particle trajectory, and collection efficiency were investigated by experiment and numerical simulation. The ESP-ESSs was compared with ESP with parallel plates (ESP-PP). The numerical results were relatively in agreement with the experimental data. The maximum error was 6.5%. The results showed that with the increase of the ESS height, the electric field intensity increased. The ESSs could generate low-velocity vortices contributing to extend the retention time of particles, which was conducive to particle collection. In general, the collection efficiency of the ESP-ESS was superior to the ESP-PP, but there was no advantage for fine particles at high inlet gas velocity and low applied voltage.
Databáze: OpenAIRE