Electrical model of dielectric barrier discharge homogenous and filamentary modes

8th International Congress of Engineering Physics

物理学;工业技术

López-Fernandez, J.A.^1,2 ; Peña-Eguiluz, R.^1 ; López-Callejas, R.^1 ; Mercado-Cabrera, A.^1 ; Valencia-Alvarado, R.^1 ; Muñoz-Castro, A.^1 ; Rodríguez-Méndez, B.G.^1

Instituto Nacional de Investigaciones Nucleares, Plasma Physics Laboratory, AP 18-1027, México City

11801, Mexico^1

Tecnológico de Estudios Superiores de Tianguistenco, Tianguistenco, Estado de México

52600, Mexico^2

关键词: Atmospheric pressure dielectric barrier discharges;    Conducting channels;    Dielectric barrier discharges;    Electric parameters;    Electrical modeling;    Homogeneous discharges;    Power law equation;    Voltage-controlled;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/792/1/012067/pdf
DOI  :  10.1088/1742-6596/792/1/012067

学科分类：工业工程学

来源: IOP

【 摘 要 】

This work proposes an electrical model that combines homogeneous and filamentary modes of an atmospheric pressure dielectric barrier discharge cell. A voltage controlled electric current source has been utilized to implement the power law equation that represents the homogeneous discharge mode, which starts when the gas breakdown voltage is reached. The filamentary mode implies the emergence of electric current conducting channels (microdischarges), to add this phenomenon an RC circuit commutated by an ideal switch has been proposed. The switch activation occurs at a higher voltage level than the gas breakdown voltage because it is necessary to impose a huge electric field that contributes to the appearance of streamers. The model allows the estimation of several electric parameters inside the reactor that cannot be measured. Also, it is possible to appreciate the modes of the DBD depending on the applied voltage magnitude. Finally, it has been recognized a good agreement between simulation outcomes and experimental results.