Abstract: An ozone generator includes a discharge chamber; an inlet opening for feeding air into the discharge chamber; an outlet opening for removing ozone from the discharge chamber; and at least two cylindrical electrode sets in the discharge chamber. Each electrode set includes a ground electrode; a high voltage electrode; a dielectric between the ground electrode and the high voltage electrode; the dielectric separated from the ground electrode by a first discharge gap, and the dielectric separated from the high voltage electrode by a second discharge gap. A high voltage power supply provides a voltage impulse to the high voltage electrode of at least 2 kV (at least 5 kV is most cases), and a peak current of at least 1 ampere (at least 4 amperes in most cases). The high voltage power supply provides a dU/dt of the voltage impulse of between 5 kV/?sec and 50 kV/?sec.

Abstract: A plasma chemical reactor including an anode having a generally cylindrical shape and an axis of rotational symmetry; a cathode inside the anode and co-axial with the anode; a hot plasma channel between the between the anode and the cathode; a gas input module providing gas flow into the anode; a gas output module at a distal end of the anode; and a high voltage power supply providing with a current in a range of 0.1-1.0 A. The high voltage power supply provides a voltage to the cathode in a range of 0-5 kV, a power of at least 1 kW, and a voltage/current ratio of at least 1000 V/A.

Abstract: A plasma generation system includes an anode having a generally cylindrical proximal portion and a generally cylindrical distal portion, the distal portion having a smaller diameter than the first portion; a connecting portion connecting the first and second portions and having walls oriented at approximately 45 degrees to center axis of the anode; a cathode having a generally cylindrical shape in its proximal portion and a tapering at approximately a 30 degree angle to the center axis of the anode in its distal portion, where a gap between the connecting portion of the anode and the distal portion of the cathode is at least twice as large as a gap between the proximal portion of the anode and the proximal portion of the cathode; and a high voltage power supply providing an operating voltage in a range of 800-2500 volts and a current of about 0.3-0.7 A to the cathode.