Sparkover as influenced by surface conditions in D-C Corona

Penney, G. W.; Craig, S. E.

doi:10.1109/tce.1960.6368553

Cited by 7 publications

(8 citation statements)

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“…From previous results obtained (3,4,9) and by taking into account remarks made by various authors (1)(2)(3)(4)(5)(6)(7)(8)11) in the literature, we have attempted to determine the role of the main parameters acting on the current increase due to the BC effect: thickness, resistivity, and porosity of the dielectric porous layer deposited on the electrodes. Consequently we have used various dielectric supports (paper, coffee filter paper, nylon fabrics, PTFE film) the thickness, porosity, and resistivity values of which can be measured, with the aim to define the best conditions to obtain a regular and steady BC.…”

Section: Experimental Set-up and Conditionsmentioning

confidence: 99%

“…Since 1946 Pauthenier et al and others have reported some laboratory experiments where the thin dust layer was simulated by various, more or less porous, dielectric materials in plane-to-plane (1-3), point-to-plane (2,(4)(5)(6)9), or wire-to-cylinder (7,11) systems. The materials used were silk, filter paper, mica (2, 5-6), cambric (7), paper, cloth, cardboard, glass cloth, Kleenex (11), and nylon (3)(4)9).…”

Section: Experimental Set-up and Conditionsmentioning

confidence: 99%

“…The materials used were silk, filter paper, mica (2, 5-6), cambric (7), paper, cloth, cardboard, glass cloth, Kleenex (11), and nylon (3)(4)9).…”

Section: Experimental Set-up and Conditionsmentioning

confidence: 99%

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

Peyrous

2004

Ozone: Science & Engineering

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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 so-called 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.).

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Section: Experimental Set-up and Conditionsmentioning

confidence: 99%

Section: Experimental Set-up and Conditionsmentioning

confidence: 99%

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

Peyrous

2004

Ozone: Science & Engineering

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“…Laboratory investigations of the effects of high resistance dust layers on corona electrodes by Penney and Craig 25 show that the presence of such a layer on the anode causes a large reduction in sparkover voltage. Thus, in the negative corona, the sparkover voltage is greatly reduced if the resistive layer is deposited on the collecting electrode.…”

Section: Effects With Positive Coronamentioning

confidence: 99%

Resistivity Problems in Electrostatic Precipitation

White

1974

Journal of the Air Pollution Control Association

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“…4 Our research has demonstrated that a •deposit of high resistivity dust on the •collecting electrode may be the source of pulsed discharges which themselves carry only a limited current. However, these discharges, if repetitive, can result in sparkover at an abnormally low voltage.…”

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confidence: 92%

Dynamic Theories of Knudsen Aerosols

Brock

1967

Journal of the Air Pollution Control Association

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Sparkover as influenced by surface conditions in D-C Corona

Cited by 7 publications

References 0 publications

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

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

Resistivity Problems in Electrostatic Precipitation

Dynamic Theories of Knudsen Aerosols

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