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http://dx.doi.org/10.3795/KSME-B.2004.28.9.1066

Design and Performance Evaluation of a Diode Type Corona Charger for Real-Time Measurement of the Submicron Aerosol  

Cho, Myung-Hoon (연세대학교 대학원 기계공학과)
Ji, Jun-Ho ((주)삼성전자 가전연구소)
Park, Dong-Ho (연세대학교 대학원 기계공학과)
Bae, Gwi-Nam (한국과학기술연구원 대기자원연구센터)
Hwang, Jung-Ho (연세대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.9, 2004 , pp. 1066-1074 More about this Journal
Abstract
With a diode corona charger, which is a component of ELPI(Electrical Low Pressure Impactor), aerosol particles are charged to make electrical detection possible before they are collected by the impactor. We designed and evaluated two cylindrical corona chargers, each of which had a central corona needle electrode. For the performance evaluation of each corona charger the polydisperse dioctyl sebacate(DOS) particles, with diameters of 0.1∼0.8 $\mu$m and NaCl particles, smaller than 0.1$\mu$m, were used. The particles were then led through an electrostatic classifier (TSI model 3081) to classify monodisperse aerosol with minimal size deviation. After evaluating the wall loss of the particles in the corona charger, we measured the product of penetration and number of charges, Pㆍn, to evaluate the corona charger efficiency at high positive voltages of 4, 5, 6 kV.
Keywords
Electrical Low Pressure Impactor; Real-Time; Corona Charger; Monodisperse Aerosol;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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