A ceramic-based ozonizer using high-frequency discharge

A thin ceramic layer, either cylindrical or planar in form, is sandwiched by a number of parallel strip-like discharge electrodes and a film-like induction electrode. An AC exciting voltage of frequency 10 kHz and 10 kV peak-to-peak (p-p) is applied between the electrodes to produce a stable high-frequency surface glow discharge for generation of ozone. As a result of its high frequency, low exciting voltage, and small size, a great reduction in cost is achieved in both the ozonizer and its power supply. The presented ozonizer can easily produce a very high ozone concentration (5000-15000 volume p.p.m. for air; 50-100000 volume p.p.m. for oxygen) without using a special enrichment means. Its power efficiency can be made very high (170 gO/kWh for air) by proper selection of operating parameters