Investigation of ozone yield of air fed ozonizer by high pressure homogeneous dielectric barrier discharge

We succeed in generating an atmospheric and high pressure homogeneous dielectric barrier discharge (DBD) in dry air by using a simple DBD device. So far, we have tried to apply the homogeneous DBD to an ozonizer and found that the ozone yield is higher by the homogeneous discharge mode than by the conventional filamentary discharge mode in larger specific input energy region. In this work, we investigated the effect of gas pressure (from 0.1 MPa to 0.2 MPa) on the ozone yield by homogeneous DBD. The results showed that increase of gas pressure does not improve the ozone yield, because the reduced electric field strength in high pressure homogeneous DBD decreased with increasing the gas pressure.