EFFECT OF VARYING VOLTAGE ON ELECTRON DENSITY IN OXYGEN HOMOGENEOUS DIELECTRIC BARRIER DISCHARGE UNDER ATMOSPHERIC PRESSURE
DOI:
https://doi.org/10.22452/mjs.sp2019no3.2Abstract
The formation of stable dielectric barrier discharges (DBD) at atmospheric pressure is a remarkable achievement with the addition of electronegative gasses in closed reactors. In this article we study stable glow discharge produced in a closed rector with oxygen at atmospheric pressure. An alternating voltage source (0-2.5) kV having frequency of 1MHz is applied across the two parallel disc electrodes. A couple of dielectrics (glass) used as a barriers one on each electrode. The oxygen gas injected into the reactor controlled by mass flow controller with flow rate 30ml/min. I-V characteristics curve for oxygen discharge achieved, fulfilling the conditions of discharge homogeneity. Power balance method is introduced to estimate the electron density in homogeneous mode for different values of applied voltages. A significant relation is found showing the variation between electron density and applied voltage under atmospheric pressure.
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