Effective Ozone Generation With a Wire–Wire-Type Nonthermal Plasma Reactor With a Slit Barrier

The corona discharge and ozone generation characteristics of a wire–wire-type nonthermal plasma reactor (PR), with a slit dielectric barrier, have been experimentally investigated. When a slit mica barrier is installed between corona wires, a significant increase in the generation of ozone could be obtained. From the photographs of the corona discharges, this type of nonthermal PR with a slit barrier (SB) produces two corona discharges, one from the corona wires and another from the slits of the SB. This second corona discharge is caused by the rapid relaxing of the charges, which are migrated from the corona wire and stored on the surface of the barrier, through the slits. As a result, the proposed nonthermal PR has the potential to significantly increase ozone production, and it may be useful as an effective means for removing pollutant gases.