Industrial Applications of Pulsed Power Technology

Abstract

A review of mainly the past two years is undertaken of the industrial applications of pulsed power. Repetitively operated pulsed power generators with a moderate peak power have been developed for industrial applications. These generators are reliable and have low maintenance. Development of the pulsed power generators helps promote industrial applications of pulsed power for such things as food processing, medical treatment, water treatment, exhaust gas treatment, ozone generation, engine ignition, ion implantation and others. Here, industrial applications of pulsed power are classified by application for biological effects, for pulsed streamer discharges in gases, for pulsed discharges in liquid or liquidmixture, and for material processing.Index Terms -Pulsed power, industrial application, bioelectrics, exhaust gas treatment, discharge in liquid, material processing.

Detailed Investigation of the Electric Discharge Plasma between Copper Electrodes Immersed into Water

“…Such discharges are the effective sources of simultaneous production of intense UV radiation, shock waves, and various chemical products, including OH, O, HO 2 , and H 2 O 2 from the electric breakdown in water [7,8]. Moreover, shock waves produced by high-energy plasma discharges inside liquids are used for various applications, including underwater explosions [9], rock fragmentation [10], and discharges for promoting chemical reactions in the aqueous phase, with particular emphasis on applications to water cleaning. Another important application of the underwater electric discharges, which has attracted significant attention, is the nanomaterial synthesis by plasma-liquid interactions, including plasma-over-liquid and plasma-in-liquid configurations [12].…”

Dispersion and Dielectric Effects on Reflection and Transmission of Electromagnetic Waves Propagating in Multiple Stages of Tape-Helix Blumlein Transmission Lines

“…(25) and (26) demonstrate that the proposed dispersive propagation theory basically equates to the classical non-dispersive propagation theory at low frequency band. Even if the mth stage line is substituted by the free space at z m−1 port, conditions such as (25), (26) and the broad-sense open condition still work.…”

“…Helical transmission line is a kind of important transmission line including helical coils as the slowwave structure, in which the phase velocities of waves can be slowed down [19]. Helical transmission line and helical coils have been widely employed in power pulse forming [14,20,21], high-power microwave radiation [22], high-power laser pump [23], electromagnetic pulse radiation [24], X-ray radiography, processing of industrial exhaust gas and water, food sterilization and biomedical applications [25].…”

Experimental study on the effect of longitudinal magnetic field on Townsend discharge characteristics in low pressure argon gas

“…This study contributes Townsend discharge regime at a new range of plane-parallel electrode separations (2cm) and different working pressures. Depending upon the energy range level, which can be delivered by these pulsed discharges, their pulse durations and modes of operation, a number of research interests has been developed for applications in medicine (Woloszko et al, 2002;Abou-Ghazala et al, 2002;Nunnally et al, 2005;Akiyama et al, 2007). Helmholtz coils are two identical circular coils of wire with identical electrical currents flowing in the same direction and arranged symmetrically.…”