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http://dx.doi.org/10.3795/KSME-B.2006.30.2.095

Experimental Study on the Corona Discharge Characteristics of the Pin-plate Electrode Geometries  

Cheong Seongir (부산대학교 기계공학과)
Lee Jaekeun (부산대학교 기계공학과)
Chung Dongkyu (㈜씨에프택)
Ahn Youngchull (부산대학교 기계기술연구소)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.2, 2006 , pp. 95-100 More about this Journal
Abstract
Electrostatic precipitators(EPs) have low pressure drop and high dust collection efficiency and are widely used for industrial dust collectors. The current-voltage characteristics, which are important to maintain high dust collection efficiency, depend on several factor: discharge electrode shape, gas flow property, dust loading etc. In this study, experiments are performed to investigate the current-voltage characteristics of the corona discharge of various electrode geometries and an empirical model is proposed to predict current-voltage characteristics of the corona discharge. The corona onset voltage correction coefficient$(\alpha)$ and the geometry correction coefficient$(k_g)$ are used to the conventional equation for wire-plate type discharge electrode. The corona onset voltages are -6.3kV and almost constant when the numbers of discharge pins are varied from 3 to 9. The length of discharge pins has very sensitive effects on the corona onset voltage. They are increased from -6.3 to -7.8kV when the discharge pin length are 8.5 and 4.5mm, respectively. The empirical model shows good agreement with experimental results and can predict the effects of discharge pin length and number.
Keywords
Electrostatic Precipitator; Electrode; Geometry; Corona Discharge; Electric Field Intensity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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