Numerical simulation on magnetic confinement characteristics of internal vortex electrostatic cyclone precipitator under different working voltages |
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| Institution: | 1. School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, China;2. College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, China;3. Sino-German College, University of Shanghai for Science and Technology, Shanghai, China;1. College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, 102249, China;2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China;1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China;2. State Key Laboratory of Clean and Efficient Coal-fired Power Generation and Pollution Control, China Energy Science and Technology Research Institute Co., Ltd., Nanjing, 210023, China;1. State Key Lab of Materials Forming and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China;2. Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore;2. Zhang Jia International Co., LTD, Taipei, Taiwan, China;3. Institute of Environmental and Occupational Health Sciences, College of Public Health, Taiwan University, Taipei, Taiwan, China;4. Shanghai Environmental Monitoring Center, Shanghai, 200235, China;5. IRDR ICoE on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health, Fudan University, Shanghai, 200433, China;6. Institute of Eco-Chongming (IEC), Shanghai, 202162, China |
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| Abstract: | Aiming at improving the capture performance of internal vortex electrostatic cyclone precipitator (ECP), a theoretical model with mechanics-electric-magnetic coupling was established, the collection efficiency of magnetic confinement ECP under different working voltages was simulated, and the influence of magnetic flux intensity on the removal performance of submicron particles was explored. Results show that the number of particles escaped from the cyclone is greatly reduced after the introduction of magnetic field and electric field, indicating that charging effect and magnetic confinement are more conductive to trap submicron particles in the internal vortex ECP. The lower the working voltage is, the worse the charging lifting effect is, but the stronger the magnetic confinement characteristics are. Furthermore, the contributions of charging effect to collection efficiency and magnetic confinement characteristics are more obvious at a weaker magnetic flux density. The research results can provide a practical new idea for the innovative design of ECP. |
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| Keywords: | Magnetic confinement characteristics Working voltage Internal vortex ECP Submicron particles Capture performance |
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