Characterization of a dielectric barrier discharge operating in an open reactor with flowing helium
Characterization of a dielectric barrier discharge operating in an open reactor with flowing helium
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DOI：
10.1088/0963-0252/13/4/005
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发表时间：
2004-11-01
影响因子：
3.8
通讯作者：
Graham, WG
中科院分区：
文献类型：
--
作者：
Nersisyan, G;Graham, WG
利用时间分辨的光电测量技术研究了氦气在平行板电极间流动产生的介质阻挡放电（DBD）。将频率为3至50 kHz的高达5 kV（峰-峰）的正弦电压施加到放电电极上。氦气流量变化最大可达10升/分（-1）。流速的调节允许以等于120 +/- 10 mW cm（-3）的优化输入功率产生均匀的DBD。在4至6升/分的流速下，获得均匀的DBD。在这些条件下，N-2（+）和氦的谱线强度分别在391.4 nm和706.5 nm处达到最大值，2表明氦可吸收物和He-2（+）在维持这种放电中的重要性。当DBD在He/空气中均匀时，功率效率和放电2电流显示最大值。在放电期间的气体温度已被测量为360 +/- 20 K。
A dielectric barrier discharge (DBD) generated by flowing helium between the parallel-plate electrodes of an open air reactor has been characterized using time resolved optical and electrical measurements. A sinusoidal voltage of up to 5 kV (peak to peak) of frequencies from 3 to 50 kHz has been applied to the discharge electrodes. The helium flow rate is varied up to 10 litre min(-1). The adjustment of flow rate allows the creation of uniform DBDs with optimized input power equal to 120 +/- 10 mW cm(-3). At flow rates from 4 to 6 litre min(-1) a uniform DBD is obtained. The maxima in the line intensities of N-2(+) and helium at 391.4 nm and 706.5 nm, respectively, 2 under those conditions indicate the importance of helium metastables and He-2(+) in sustaining such a discharge. The power efficiency and discharge 2 current show maxima when the DBD In He/air is uniform. The gas temperature during the discharge has been measured as 360 +/- 20 K.