Barrier discharge characteristics of wire-pole electrodes with ferro-electric barriers

2001 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.01CH37225) Pub Date : 2001-10-14 DOI:10.1109/CEIDP.2001.963564

Y. Kawada, T. Kaneko, T. Ito, J. Chang

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引用次数: 4

Abstract

Corona discharge induced non-thermal plasma has been used for cleaning of dust particles, VOCs, NOx, SO/sub 2/, etc. in flue gas. Barrier discharge with ferro-electric materials can generate strong streamer corona and often can be used for such applications. In this paper, the characteristics of ferro-electric barrier discharge were experimentally investigated for wire-rod and wire-quadrupole type electrode geometries. In the present experimental apparatus, all the grounding electrodes covered by 1mm thick glass tubes and with/without 0.3mm thick barium titanate sheath on corona wires were tested. The dielectric constant of barium titanate is approximately 10,000. The results show that: (1) when corona wire is covered with barium titanate sheath, discharge current slightly decreases in each electrode configuration by comparison with no ferro-electric barriers; (2) compared with wire-rod, the current pulse frequency in the quadrupole become higher. The effects of dielectric barriers on the discharge current waveforms; were discussed in detail.

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具有铁电屏障的线极电极的阻挡放电特性

电晕放电诱导非热等离子体已被用于烟气中粉尘颗粒、VOCs、NOx、SO/sub /等的净化。铁电材料的阻挡放电可产生强流光电晕，通常可用于此类应用。本文对线材-棒材和线材-四极电极的铁电阻挡放电特性进行了实验研究。在本实验装置中，对电晕导线上覆盖1mm厚玻璃管、带/不带0.3mm厚钛酸钡护套的所有接地电极进行了测试。钛酸钡的介电常数约为10000。结果表明:(1)有钛酸钡护套覆盖电晕线时，与无铁电屏障相比，各电极结构的放电电流均略有减小;(2)与线杆相比，四极中电流脉冲频率变高。电介质的影响放电电流波形上的障碍;进行了详细的讨论。

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2001 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.01CH37225)

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