Generation of high pressure homogeneous dielectric barrier discharge in air
Generation of high pressure homogeneous dielectric barrier discharge in air
复制标题
在空气中产生高压均匀介质阻挡放电
DOI：
10.1051/epjap/2012120398
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Yoshio Yoshioka and Ryoichi Hanaoka
中科院分区：
文献类型：
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作者：
Naoki Osawa;Ami Takashi;Yoshio Yoshioka and Ryoichi Hanaoka
我们使用由氧化铝屏障和平面电极组成的简单DBD装置，成功地在空气中产生了常压汤森放电（APTD）。到目前为止，我们将APTD应用于臭氧发生器，发现在更大的比输入能量区域，APTD模式的臭氧生成效率高于传统DBD模式。众所周知，在优化的高压下操作有利于有效地从空气中产生臭氧。本文研究了在0.17 MPa高压干燥空气中是否能产生Townsend放电（TD）。从电流波形和放电照片的观察结果发现：(1)在所有气体压力下，放电电流连续流动，每半周期只有一个峰值；(2)在所有气体压力下，障碍物之间不识别丝状放电。这些特征与我们报道的APTD的特征完全一致。因此，我们得出结论，即使在0.1和0.17 MPa的干燥空气中，我们的TD也可以产生。
We succeeded in generating an atmospheric pressure Townsend discharge (APTD) in air by using a simple DBD device that consists of alumina barriers and plane electrodes. So far, we applied the APTD to an ozonizer and found that the ozone generation efficiency was higher by the APTD mode than by the conventional DBD mode in larger specific input energy region. It is well known that an operation under an optimized high gas pressure is advantageous for efficient ozone generation from air. In this paper, we investigated whether the Townsend discharge (TD) in dry air in high pressure up to 0.17 MPa can be generated or not. From the observation results of current waveforms and discharge photographs, we found that (1) the discharge currents flow continuously and have only one peak in every half cycle in all gas pressure and (2) filamentary discharges are not recognized between barriers in all gas pressure. These features completely agree with the features of the APTD we reported. Therefore, we concluded that our TD can be generated even in dry air in the pressure range of 0.1 and 0.17 MPa.