Novel electrodes of an electrostatic precipitator for air filtration |
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Institution: | 1. State Key Lab of Clean Energy Utilization, State Environmental Protection Engineering Center for Coal-Fired Air Pollution Control, Zhejiang University, 38 Zheda Road, Hangzhou 310027, People''s Republic of China;2. Zhejiang Tiandi Environmental Protection Technology Co., Ltd., Hangzhou 311121, People''s Republic of China |
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Abstract: | Using electrostatic precipitators (ESPs) in filtration systems results in higher system energy efficiency than fiber-based filters, but particle re-entrainment could lower the collection efficiency of ESPs. This paper demonstrates a novel ESP that utilizes foam-covered collecting electrodes to reduce particle re-entrainment and enhance collection efficiency. Particles that settle down within the pores of the foam are less likely to re-enter the airflow. Results show that foam-covered ESPs have 99 percent collection efficiency. Parametric plots demonstrate the effects of the key design variables, such as corona voltage, repelling voltage, and free airflow velocity on collection efficiency. |
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Keywords: | Electrostatic precipitator Porous Foam |
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