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http://dx.doi.org/10.11629/jpaar.2018.14.4.121

Particle removal characteristics of high-velocity electrostatic mist eliminator  

Kim, Jin-seon (Environmental System Research Division, Korea Institute of Machinery and Materials)
Kim, Hak-Joon (Environmental System Research Division, Korea Institute of Machinery and Materials)
Han, Bangwoo (Environmental System Research Division, Korea Institute of Machinery and Materials)
Woo, Chang Gyu (Environmental System Research Division, Korea Institute of Machinery and Materials)
Kim, Yong-Jin (Environmental System Research Division, Korea Institute of Machinery and Materials)
Lee, Sangrin (Doosan Heavy Industries & Construction Co. LTD)
Moon, Sangchul (Doosan Heavy Industries & Construction Co. LTD)
Publication Information
Particle and aerosol research / v.14, no.4, 2018 , pp. 121-133 More about this Journal
Abstract
In this study, we developed a flat-plate type wet electrostatic precipitator that generates stable corona discharge compared to wire type discharge electrode. In order to compare the particle removal efficiency according to the shape of the discharge electrode such as the variation of the horizontal and vertical distance between spiked edges, and the variation of the height of discharge pin support were tested. As a result, when the horizontal distance between spiked edges was increased up to 36 mm, the vertical distance between spiked edges was increased up to 54 mm, and the height of the discharge pin support was increased up to 76 mm, the removal efficiency of PM10 was maintained at approximate 60.0%. Furthermore, the removal efficiency of particles over $5{\mu}m$ was about 80% or more. When the flow rate was 4 m/s, the gap between collection plates was 60 mm, and -14 kV was applied to the discharge electrode. The particle removal efficiency of the flat-plate type electrostatic precipitator was maintained when the horizontal and vertical distance between spiked edges, and the height of the discharge pin support was below a certain level. Those variables may be the important design factors for the shape of the discharge electrode. Therefore, when designing the electrostatic precipitator with multiple channels, the horizontal and vertical distance between spiked edges, and the height of discharge pin support must be selected in consideration of the weight of the discharge electrode and the processing cost.
Keywords
mist eliminator; electrostatic precipitator; discharge electrode; corona discharge;
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Times Cited By KSCI : 1  (Citation Analysis)
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