Possibility of Improvement on Ozone Production by Using the Back-Corona Effect

Author: R. Peyrous

Source: Ozone: Science and Engineering, Volume 26, Number 1, February 2004 , pp. 11-19(9)

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Abstract:

Electrostatic precipitators'problems and experimental results in point-to-plane or wire-to-cylinder systems indicate that the presence of a thin layer of porous dielectric material on the electrodes increases the discharge current for the same applied potential. This socalled Back-Corona effect, which generally reduces the sparking potential, depends on the active electrode polarity; nature, and thickness and porosity of the insulating layer; and position on the active or passive electrode of the deposited particles or insulating layer. In laboratory experiments in a point-to-plane device, with a dielectric porous layer on the plane, the current may be many times higher than its“normal”value (clean electrodes). In a DC negative wire-to-cylinder system, where the ozone concentration depends quasi directly on the discharge current, it appears possible to increase the ozone production, for the same running conditions (gas flow, electrical circuit, etc.).

Keywords: Ozone; Wire-to-Cylinder Ozone Generator; Point-to-Plane Ozone Generator; Electrostatic Precipitators; Back-Corona Effect; Porous Dielectric

Document Type: Research article

DOI: http://dx.doi.org/10.1080/01919510490426036

Affiliations: 1: Université de Pau and Pays de l'Adour, CURS, Laboratoire, L.E.G.P., Avenue, de l'Université, Pau, France

Publication date: 2004-02-01