Experimental and Simulation Investigations of DBD Plasma Reactor at Normal Environmental Conditions

Abstract

In this paper, a cylindrical dielectric barrier discharge (DBD) plasma reactor is analyzed and investigated at normal environmental conditions. The stressed voltage is varied up to 40 kV peak-to-peak with a variable frequency of up to 4 kHz. In order to compare the experimental findings with the simulation results, an equivalent electrical circuit model is used. To simulate the dynamic microdischarge inside the plasma reactor, a voltage-controlled current source is implemented. The reactor is filled with aluminum oxide to enhance its operation. An equivalent configuration is proposed to model the region of alumina pellets inside the reactor and to calculate the corresponding equivalent capacitance. It is found that the measured voltage, discharge current, and voltage-charge waveforms are consistent with the simulated results. The quantitative comparison of the experimental and simulated data confirms the validity of the developed electrical circuit model of the plasma reactor.Index Terms-Capacitance, dielectric barrier discharge (DBD) reactor, discharge power, microdischarge.

Effect of dielectric parameters on the transformation of operation mode and the energy cost of nitrogen fixation of surface microdischarge in air

“…The dielectric constant and thickness of the dielectric sheet have a significant influence on the voltage across the gas gap of the DBD, and the discharge properties are directly related to the voltage across the gas gap. [40,41] An SMD is actually a type of DBD; the equivalent electric circuit of an SMD is comparable to the classic equivalent electric circuit of a DBD. To analyze the effect of dielectric parameters on the gas gap voltage, an equivalent electric circuit was built.…”

Electrical equivalent model of a long dielectric barrier discharge plasma jet for endoscopy

“…It can reasonably be assumed constant during this phase (i.e. the ionization degree does not drastically increase once the plasma is ignited) [34][35][36][37][38][39][40] and a resulting constant resistance value has, for example, been estimated as V b /I peak [36,40].…”

“…Many alternatives have been proposed, based on Manley's electrical equivalent circuit. More precisely, the dynamics of the time-variable impedance of figure 1(a) has been modelled in different ways by various team [34][35][36][37][38][39][40][41][42][43][44][45][46]. However, these models do not simulate the behaviour of a long plasma jet in a catheter of 2 m.…”