Reactive species in surface micro-discharge in air and their influencing factors

被引：0

作者：

Liu D. ^{[1
]}

Li J. ^{[1
]}

Ma Z. ^{[1
]}

Yang A. ^{[1
]}

Wang X. ^{[1
]}

机构：

[1] State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an

来源：

Gaodianya Jishu/High Voltage Engineering | 2016年 / 42卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Cold plasma; Global model; Reactive species; RNS; ROS; Surface discharge;

D O I：

10.13336/j.1003-6520.hve.2016.02.012

中图分类号：

学科分类号：

摘要：

The reactive species in cold atmospheric-pressure plasmas play a key role in various application fields, such as biomedicine, environmental protection, nanotechnology, etc. In order to further investigate the composition and the number density of the reactive species and their influence conditions, a 0-D global model is developed for surface micro-discharge in atmospheric-pressure air, which incorporates 54 species and 624 chemical reactions. The reactive species and their production mechanism in the plasma and the downstream air region are then studied. It is found that the main species in the downstream air region are O3, N2O5, N2O, HNO3, NO3, H2O2, HNO2, and NO2. The number densities of reactive species increase linearly with the input power density from 250 W/m2 to 1000 W/m2, but the energy efficiency for the production of reaction species decreases. The number densities of reactive species decrease to some extent when the air region thickness increases from 1 mm to 10 mm, but the energy efficiency increases sharply. As the gas temperature increases from 300 K to 320 K, the number densities of reactive oxygen species decrease, on the contrary, the number densities of reactive nitrogen species increase. The number densities and production efficiency of reactive species are strongly dependent on the discharge conditions like the input power, the air region thickness, and the gas temperature. © 2016, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

引用

页码：421 / 427

页数：6

共 31 条

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