Influence of Gas Flow on the Characteristics of Dielectric Barrier Discharge in Helium at Atmospheric Pressure

被引：0

作者：

Huang Y. ^{[1
]}

Meng Y. ^{[1
]}

Mei L. ^{[1
]}

Ma Y. ^{[1
]}

Wu K. ^{[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 | 2022年 / 48卷 / 07期

基金：

中国国家自然科学基金;

关键词：

atmospheric pressure helium; dielectric barrier discharge; discharge characteristics; discharge form; gas flow velocity;

D O I：

10.13336/j.1003-6520.hve.20211395

中图分类号：

学科分类号：

摘要：

Gas flow is one of the influencing factors in the industrial application of dielectric barrier discharge. Clarifying the interaction mechanism between gas flow and discharge can help to find more suitable experimental conditions for industrial production. Consequently, a high temporal resolution dielectric barrier discharge measuring system is established to explore the influence of helium gas flow on the evolution of the discharge form, as well as the current pulse amplitude, discharge volume, discharge phase and other discharge characteristics. It is found that the introduction of 2 L/min (corresponding actual airflow velocity v=0.111 m/s) gas flow in the discharge gap will reduce the initial voltage of the discharge and promote the transformation of the discharge form from columnar discharge to filamentary discharge. Under the condition of a fixed applied voltage, the increase of gas flow velocity will change the distribution of charged particles in the discharge air gap and improve the uniformity of the discharge, thereby affecting the discharge form and discharge characteristics. At the gas flow velocity of 5 L/min(v=0.278 m/s), the charged particles produced by the discharge will be taken out of the discharge gap, and the discharge form will evolve from columnar discharge to uniform discharge at this time. © 2022 Science Press. All rights reserved.

引用

页码：2737 / 2746

页数：9

共 28 条

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