Aerosol Filtration and Electrostatic Precipitation
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Abstract
Abstract
Corona discharge has been extensively adopted for plasma generation, but its practical application is constrained by discharge uniformity and operational stability. In this study, numerical simulations are performed to explore the enhancement mechanism of external magnetic fields on corona discharge, with a focus on the influences of coil configuration, excitation current magnitude, and needle electrode spacing. The simulation results reveal that Helmholtz coils achieve optimal electric field enhancement by eliminating axial magnetic field gradients. Nevertheless, excessively high excitation current will trigger the transition of discharge mode from diffuse corona to arc discharge. Additionally, an optimal needle electrode spacing is determined to strike a balance between electric field intensity and spatial uniformity. The outcomes of this study provide a solid theoretical foundation for the design and optimization of magnetic field-assisted corona discharge systems, which hold promising prospects for environmental treatment and material processing applications.
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@article{Li2026Effect,
title = {Effect of Magnetic Field on Arrayed Corona Discharge},
author = {C K Li and Ying Zhang and Qiming Sun},
journal = {Applied Sciences},
year = {2026},
doi = {10.3390/app16157455},
url = {https://doi.org/10.3390/app16157455}
}FAQ
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