Production of ozone using nanosecond short pulsed power

Production of ozone is one of the most typical industrial and commercial applications of electrical discharge. The demand of ozone increases for for wholesome and environment-friendly sterilizations. The production of ozone using the pulsed power discharge applies the electron accelerations around the head of streamer discharge. The breakdowns in reactor, however, often limit the efficient production. The pulse shape should be controlled for dimension of the reactor. On the other hand, the narrow reactor is preferable to obtain high energy density in the discharge region. It is clear that a pulse shortening is one of the effective approaches. The nanosecond pulsed power voltage applies for ozone production. The short pulse is generated from a combination of a short pulse forming line and short gas switch with high pressure, and supplies to the reactor with a wire-to-cylinder configuration. The effects of the pulse shape, dimension and configuration of the reactor and flow rate of oxygen gas on ozone production are discussed here. The efficiency, producing ozone, of 350 g/kWh is obtained at present.