Abstract

We studied the effect of the driving voltage of frequencies 4, 7, and 10 kHz and two different active electrode setups on electrical properties, ozone production, and UV radiation of wavelengths 320–420 nm of the dielectric barrier discharge in air. The first active electrode setup comprised the strip electrode made from the copper foil. The second setup comprised the stainless steel wire mesh electrode with square cells. The ozone concentration, as well as the ozone production yield, is higher for the discharge with the strip active electrode setup than for the discharge with the mesh active electrode set up. The increased frequency decreases the voltage required to obtain maximum ozone concentration. The intensity of UV radiation is higher for the discharge with the mesh active electrode setup than for the discharge with the strip active electrode setup for all investigated frequencies. The intensity of UV radiation at a particular voltage depending on the frequency and active electrode setup sharply increases. The high concentrations of ozone produced by the discharge with the strip active electrode setup are accompanied by lower intensities of generated UV radiation. For the discharge with the mesh active electrode setup, the situation is reversed.

Graphical abstract

中文翻译：

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驱动电压频率和有源电极设置对空气中介电阻挡层放电产生的臭氧和紫外线的影响

摘要

我们研究了频率为4、7和10 kHz的驱动电压以及两种不同的有源电极设置对空气中电介质阻挡层放电的电性能，臭氧产生和波长为320-420 nm的UV辐射的影响。第一有源电极设置包括由铜箔制成的条状电极。第二种设置包括带有方形电池的不锈钢丝网电极。带状活性电极设置的放电的臭氧浓度和网状活性电极设置的放电的臭氧浓度以及臭氧产生的产率更高。增加的频率降低了获得最大臭氧浓度所需的电压。对于所有研究的频率，网状有源电极设置的放电的紫外线辐射强度高于带状有源电极设置的放电的紫外线辐射强度。取决于频率和有源电极设置，特定电压下的紫外线辐射强度会急剧增加。通过带状有源电极装置放电产生的高浓度臭氧，伴随着较低强度的紫外线辐射。对于使用网状有源电极设置进行放电，情况则相反。通过带状有源电极装置放电产生的高浓度臭氧，伴随着较低强度的紫外线辐射。对于使用网状有源电极设置进行放电，情况则相反。通过带状有源电极装置放电产生的高浓度臭氧，伴随着较低强度的紫外线辐射。对于使用网状有源电极设置进行放电，情况则相反。

图形概要