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Effect of a Cylindrical Third Electrode of a Point-Plate Type Plasma Reactor on Corona Discharge and Ozone Generation Characteristics  

Moon, Jae-Duk (경북대 전자전기컴퓨터학부)
Jung, Ho-Jun (경북대 대학원 전기공학과)
Jung, Jae-Seung (경북대 대학원 전자전기컴퓨터학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.5, 2007 , pp. 933-937 More about this Journal
Abstract
A point plate type nonthermal plasma reactor, with a grounded cylindrical third electrode which closely- encompasses the needle point, have been investigated with an emphasis on the role of the third electrode. It was found that the point plate airgap, with the grounded third electrode, had a switching characteristic on its I V characteristics for negative and positive discharges, which is very different from that of a conventional point plate airgap without a third electrode. The corona discharge and ozone generation characteristics of the plasma reactor with the grounded cylindrical third electrode, such as the corona onset voltage. the breakdown voltage. the corona current. and the amount of output ozone, were influenced significantly by the height of the third electrode. and these characteristics can be controlled by adjusting the height of the third electrode.
Keywords
Point-plate type plasma reactor; Cylindrical third electrode; Third electrode height; Corona discharge; Ozone generation;
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