High-Efficiency Ozonizer Using Traveling Wave Pulse Voltage

The energy yield of ozone generation can be raised substantially by using a fast-rising narrow pulse voltage in combination with a transmission-line type ozonizer. The pulse voltage proceeds in the form of a traveling wave to produce very active coronas. Both wire-to-cylinder type ozonizers and parallel-strip-line-with-insulator type ozonizers are tested. The former produces streamer coronas along the wire and indicates a high ozonizer-based energy yield Yo but its volume yield Yu is very low. The latter produces pulse-induced intense-glow coronas, and indicates very high Yo and Yu. However, the energy yield based on the stored energy of the pulse-forming condenser Yc still remains low, because of poor coupling of the pulse energy with the ozonizers. The plate-type ozonizer, comprising zigzag-shaped strip-line electrodes on the insulator plates, represents one of the practical embodiments of the stripline ozonizer. The pulse-peaking method provides a possibility of enhancing the level of Yo. An improvement of the coupling method is likely to improve the level of Yc.