A new pin-to-plate corona discharger with clean air protection for particulate matter removal
作者机构：Department of Building ScienceTsinghua UniversityBeijing 100084China Beijing Key Laboratory of Indoor Air Quality Evaluation and ControlBeijing 100084China Wuhan Second Ship Design and Research InstituteWuhan 430205China School of Energy and Power EngineeringBeihang UniversityBeijing 100191China Danish Building Research InstituteAalborg UniversityCopenhagenDenmark
出 版 物：《Energy and Built Environment》 (能源与人工环境（英文）)
年 卷 期：2020年第1卷第1期
页 面：87-92页
核心收录：
学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学]
基 金：The research was supported by the National Key Research and Devel-opment Program of China(No.2016YFC0207103) the Natural Science Foundation of China(Nos.51722807,and 51521005) Beijing Mu-nicipal Science&Technology Commission(No.Z191100009119007)
主 题：Indoor air quality Electrostatic precipitator Corona discharge Discharge pins Clean air protection
摘 要：High concentration particulate matter(PM)has been a serious environmental problem in China and other devel-oping ***-based purification technology is a method to remove airborne particles,and can reduce the energy consumption of ventilation fans in buildings because of its low pressure *** this study,we developed a new pin-to-plate corona discharger with particle-free external air protection to prevent particles polluting the surface of discharge *** using an optical microscope,we observed a certain number of parti-cles deposited on the non-protected(exposed pins)and few particles deposited on the protected pins after they operating for 3 *** experimentally studied the long-term performances of the exposed and protected pins in single-pass PM removal efficiency and ozone *** results showed that the protected pins produce less ozone and have higher breakdown voltage than the exposed *** results indicated that the im-proved pin-to-plate corona discharger has better long-term performance and is safer than the exposed *** results of the research can give an understanding of how to improve electrostatic-based purification technologies toward stable discharging for high removal efficiency of particles.
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