Abstract:
A discharge device includes discharge electrode (41), counter electrode (42), and a voltage application device. Discharge electrode (41) includes distal end portion (411). Counter electrode (42) is disposed so as to face distal end portion (411) of discharge electrode (41) with a gap provided therebetween. The voltage application device applies a voltage between discharge electrode (41) and counter electrode (42) to generate a discharge between discharge electrode (41) and counter electrode (42). Discharge electrode (41) protrudes toward counter electrode (42). Counter electrode (42) includes discharge portion (420) where a discharge occurs between discharge portion (420) and distal end portion (411) of discharge electrode (41). Discharge portion (420) extends along a circumference centered at distal end portion (411) of discharge electrode (41).
Abstract:
Provided is an electrode for stably generating a glow corona discharge. The tip of an electrode (10a) applied in a discharge testing device either forms a continuous blade constituting a closed curve within a plane orthogonal to the length direction of the electrode (10a), with serrated teeth being formed in the direction in which the blade extends, or, forms a continuous blade constituting a closed curve within a plane orthogonal to the length direction of the electrode (10a), with a base portion for supplying a voltage to the electrode (10a) being connected to the tip through a resistor having a predetermined resistance value.
Abstract:
Described herein are a device (4), a system (1), and a method for the treatment of liquid effluents by means of electric discharges. According to the invention, the electric discharge that is set up in the treatment device following upon application of voltage pulses has characteristics, in terms of amplitude and duration of the pulses, such as not to incur in phenomena of dissipation of energy and such as to emit ultraviolet radiation for further treatment of the effluent.
Abstract:
A corona igniter 20 includes a central electrode 34 for receiving a high radio frequency voltage from a power source and emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge 22. The corona igniter 20 includes an insulator 38 extending along the central electrode 34 longitudinally past the central electrode 34 to an insulator firing end 40. The insulator firing surface 42 and the center axis A present an angle α of not greater than 90 degrees therebetween, for example the insulator firing surface may be concave. The central electrode 34 may also include a firing tip 50, in which case the insulator firing surface 42 surrounds all sides of the firing tip 50. The geometry of the insulator firing surface 42 concentrates and directs the corona discharge 22.