Consideration of Reactor Configuration of High Yield Ozonizer by Nanosecond Pulsed Power Discharge

Ozone has many applications in various fields with an advantage of low environmental load, e.g., sterilization, deodorization and bleaching. A part of industrial applications of ozone has already been put into practical use. While the barrier discharge is mainly used for commercial production of ozone, the various discharge methods have been studied to achieve higher yield and higher concentration. A nanosecond pulsed power generator has been developed and the ozone production experiment is conducted. As the width of pulsed power shortens, the efficiency of production improves, but the load matching becomes difficult. Then, the parallel connection of reactors is adopted. The discharge volume increases with parallel reactors. The reactor is coaxial and consists of wire and cylinder electrodes. Since arc discharges are controlled due to using nanosecond pulsed power discharge on the parallel reactors, the improved shape of insulators prevents surface discharges. The 8 parallel and 12 parallel reactors give ozone yield of about 280 g/kWh for system efficiency (500 mm reactor). In this study, the improvement of load matching is important with the discharge volume for high yield