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Particle and Aerosol Research
Vol. 19, No. 3, September 2023, Pages 63-76
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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A study on cleaning performance of particles on collection plates using an electrodynamic screen
Yunhui Joe1),2), Dongho Shin1), Younghun Kim1),3), Inyong Park1), Sang Bok Kim1), Gunhee Lee1),and Bangwoo Han1),2)*
1)Department of Sustainable Environment Research, Korea Institute of Machinery & Material
2)Environmental & Energy Mechanical Engineering, University of Science and Technology (UST)
3)Department of Mechanical Engineering, Yonsei University
*Corresponding author.
Tel.: +82-42-868-7939, E-mail: gunhee@kimm.re.kr
Received 02 June 2023, Revised 24 July 2023, Accepted 27 July 2023, Available online 30 September 2023
http://dx.doi.org/10.11629/jpaar.2023.19.3.063
Abstracts
An electrostatic precipitator (ESP) has a low pressure drop and a high collection efficiency but its collection efficiency can be reduced due to dust accumulation on the collection plates during long-term operations. In order to maintain the initial dust collection efficiency, it is necessary to periodically clean the collection plates. The common cleaning methods are using physical impacts or water sprays. These cleaning methods can lead to damage to the collection plate or generate wastewater. Herein, we implemented an electrodynamic screen (EDS) for ESP cleaning and evaluated its surface cleaning performance of particles. The EDS is an electrostatic system that can electrostatically repel particles on surfaces, allowing it to clean the ESP without causing damage and wastewater generation. Our evaluation included the analysis of the effects of AC voltage characteristics, electrode configuration and environmental conditions on the cleaning performance of the EDS with the aim of achieving effective surface cleaning. It has been demonstrated that activating the EDS cleans up to 65% of the particles on the surface, which indicates about 94% of our target cleaning zone.
Keywords
electrostatic precipitator (ESP), dust accumulation, electrodynamic screen (EDS), cleaning efficiency
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