Effects of Variable Applied Voltage on Dielectric Barrier Discharge Plasma Parameters: Comparative Study

Abstract

The purpose of the COMSOL Multiphysics program is to create a simulation that is similar to an experimental device. In this paper, a one-dimensional simulation for discus plate DBD is done in COMSOL Multiphysics software. DBD system, which used argon as the working gas and an ac power supply running at a frequency of 9.1 kHz, is reported in this study. Investigating the effects of voltage on temperature and electron density in our device, it is shown that an increase in voltage from 2 to 12 kV results in an increase in electron density from 5.405x10¹⁷ to 7.432x10¹⁷ cm^-3 and also increasing the electron temperature. By utilizing COMSOL, results showed an excellent agreement between experiment and COMSOL simulations results. According to the study, electron density could reach orders of 1017 cm-3 by optimizing which control of applying Voltage. The results of this study provide important insights into the field of plasma technology and its applications, where they may serve as a basis for future extensive research.