Effects of packing particles on the partial discharge behavior and the electrical characterization of oxygen PBRs
Effects of packing particles on the partial discharge behavior and the electrical characterization of oxygen PBRs
复制标题
填充颗粒对氧 PBR 局部放电行为和电学特性的影响
DOI：
10.1088/2058-6272/abc822
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发表时间：
2020-11
影响因子：
1.7
通讯作者：
Lu Yirui
中科院分区：
文献类型：
--
作者：
Ni Sijia;Cai Yixi;Shi Yunxi;Wang Weikai;Zhao Nan;Lu Yirui
填充床反应器(PBR)在环境应用方面具有很大的前景，但需要对PBR内的等离子体放电行为有更深入的了解。为此，本工作建立了PBRS的局部放电替代等效电路。使用介电粒子(玻璃微珠或玻璃砂)来研究粒子的大小和形状对氧气PBR局部放电行为的影响。对某些电学特性(如有效介电电容、局部放电系数和修正燃烧电压)进行了探索，这可能与长期以来的解释不同。结果表明，表面放电对灯丝放电的抑制作用随着颗粒尺寸的减小而增强。对于局部放电，有效介质电容总是小于介质电容。校正燃烧电压和局部放电倾向随颗粒尺寸的减小而增大。与空反应器相比，PBR内的平均电场提高了3~4倍，臭氧能量效率和产量分别提高了20%和15%以上。因此，可以通过选择适合于放电间隙的相对较大的尺寸或复杂的不规则形状的填充材料来提高等离子体处理能力。
Packed-bed reactors (PBRs) hold great promise for environmental applications, but a deeper understanding of the behavior of plasma discharge within PBRs is required. To this end, a partial-discharge alternative equivalent circuit for PBRs was established in this work. Dielectric particles (glass beads or glass sand) were used to place focus on the effects of the particle size and shape on the partial discharge behavior of the oxygen PBRs. Some electrical characterizations were explored (eg the effective dielectric capacitance, partial discharge coefficient, and corrected burning voltage) that may differ from long-standing interpretations. The findings indicate that the suppressive effect of surface discharge on filament discharge is stronger with the decrease of the particle size. For partial discharge, the effective dielectric capacitance is always less than the dielectric capacitance. The corrected burning voltage and partial discharge tendency increase with the decrease of the particle size. As compared to an empty reactor, the average electric field in the PBR was found to be improved by 3–4 times, and the ozone energy efficiency and production were promoted by more than 20% and 15%, respectively. The plasma processing capacity can therefore be improved by choosing a relatively large size or a complex, irregularly-shaped packing material that is suitable for the discharge gap.
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DOI：
10.1088/0022-3727/37/24/004
发表时间：
2004-12
期刊：
Journal of Physics D: Applied Physics
影响因子：
--
作者：
Ye Qizheng;Li Jin;Xie Zhihui
通讯作者：
Ye Qizheng;Li Jin;Xie Zhihui
影响因子：
3.8
作者：
P. Reichen;A. Sonnenfeld;P. R. von Rohr
通讯作者：
P. Reichen;A. Sonnenfeld;P. R. von Rohr
影响因子：
1.5
作者：
J. Choi;M. H. Han;H. Baik
通讯作者：
J. Choi;M. H. Han;H. Baik
影响因子：
3.4
作者：
Pekarek, Stanislav
通讯作者：
Pekarek, Stanislav
影响因子：
3.8
作者：
Homola, Tomas;Prukner, Vaclav;Simek, Milan
通讯作者：
Simek, Milan