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Water Droplet Ejection Characteristics of a Wet Porous Point-Plate Airgap  

Jung, Jae-Seung (경북대 대학원 전자전기컴퓨터학부)
Lee, Woo-Seok (부산정보대학, 전기자동화과)
Moon, Jae-Duk (경북대 전자전기컴퓨터학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.10, 2009 , pp. 2005-2010 More about this Journal
Abstract
Water droplet ejection characteristics of a point-to-plate airgap, with a wet porous point as a corona electrode, has been investigated. And the water droplet traces, charge, mass and number were measured experimentally. More particles are observed with wet porous point than metal point because the corona-discharging wet porous point can eject a number of water droplets. The water droplets ejected from the positive-corona-discharging wet porous point showed very fine traces as compared with those from the negative-corona-discharging wet porous point. Moreover, the water droplets ejected from the AC-corona-discharging wet porous point showed granular-like larger traces. It was shown that the weak corona discharge can eject smaller water droplets with larger ratio of mass-to-charge than the intense corona discharge.
Keywords
Wet porous point; Point-to-plate airgap; Water droplet ejection; Water droplet trace; Charge-to-mass ratio;
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