Ozone production by dielectric barrier discharges plasma of coaxial cylindrical electrodes configuration using oxygen and argon source

Abstract

A study of ozone production produced by dielectric barrier discharge (DBD) plasma has been done. The DBD reactor used coaxial cylindrical electrodes configuration i.e., a Pyrex glass with diameter of 2.0 cm and length of 30 cm was installed between the two electrodes and served as a barrier material. The outer diameter of electrode was 2.3 cm and the inner electrode was straight conductor wire. Plasma was generated by flowing Oxygen and Argon gas, using AC and DC high voltage up to 16 kV at gas flow rate varied from 2 to 8 L/min. The results show that DBD reactor with oxygen source produces the higher ozone concentration than argon source. In the range 1-13 kV of DC applied voltage for oxygen flow, the ozone concentration increases between 1.0 to 3.8 ppm. In the range 0-2 kV of AC applied voltage for oxygen flow, the ozone concentration fluctuates between 6-7 ppm, and at 3 kV it increases drastically up to 145 ppm at oxygen flow rate of 2 L/min and 4 L/min. The quality of ozone concentration produced by flowing oxygen and argon through this type of reactor could be developed to further investigation and used in various fields of application.