Characteristics of DC Corona Streamers Induced by UV Laser Irradiation in Non-Thermal Plasma
Characteristics of DC Corona Streamers Induced by UV Laser Irradiation in Non-Thermal Plasma
复制标题
非热等离子体中紫外激光照射引起的直流电晕流光特性
DOI：
10.1515/jaots-2005-0215
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
J. Mizeraczyk
中科院分区：
文献类型：
--
作者：
T. Ohkubo;S. Kanazawa;Y. Nomoto;M. Kocik;J. Mizeraczyk
摘要正电晕放电技术广泛应用于低温等离子体化学法脱除氮氧化物、硫氧化物、挥发性有机物等大气污染物的治理领域。在这项研究中，在电极间隙间距为3cm的管-板电极结构中，研究了紫外激光照射引起的直流正电晕流的特性。使用ICCD相机以纳秒级时间分辨率记录流光图像。在直流电晕放电过程中，出现了几十ms间隔的规则流光，其持续时间波动很大。这使得ICCD相机的时间分辨流注观测极其困难。然而，额外的流光与一个可预测的起始时间，可以通过UV激光照射诱导。得到了激光诱导流光的电流波形特征。在这项工作中，三维流注结构，包括流注的传播和分支进行了研究。还评估了流注传播速度。
Abstract Positive corona streamers are widely used in the field of air pollution control such as NOx or SOx removal and VOCs decomposition based on non-thermal plasma chemical process. In this study, the characteristics of DC positive corona streamers induced by UV laser irradiation are investigated in the tube-to-plane electrode configuration with electrode gap spacing of 3 cm. The streamer images were recorded using an ICCD camera with a nanosecond order time resolution. During the DC corona discharge, regular streamers appear with tens of ms intervals, the duration of which considerably fluctuates. This makes time resolved streamer observation by the ICCD camera extremely difficult. However, additional streamers with a predictable inception time can be induced by UV laser irradiation. As a result, the current waveform characteristics of the laser-induced streamers were obtained. In this work, three-dimensional streamer structures including the streamer propagation and branching were studied. Also the streamer propagation velocity was evaluated.
影响因子：
2.7
作者：
E. M. Veldhuizen
通讯作者：
E. M. Veldhuizen