ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
ISSN : 2287-7509(Online)
유전체 배리어 방전형 2단 전기집진기의 인가전압 파형별 미세입자 집진특성
Fine Particle Collection with Various Voltage Waveforms for Dielectric Barrier Discharge Type 2‐Stage ESP
Received 22 July 2004, accepted 4 October 2004
Abstract
AbstractDielectric barrier discharge (DBD) in air, which has been established for the production of large quantitiesof ozone, is more recently being applied to a wider range of aftertreatment processes for HAPs (hazardousair pollutants). Although DBD has high electron density and energy, its potential use as precharging nano andsubmicron sized particles, is not known. In this work, we measured V‐I (voltage‐current) characteristics ofDBD and estimated the collection efficiency of particles with bimodal distribution by DBD type 2‐stage ESP(electrostatic precipitator). To examine the particle collection with various applied voltage waveforms ofDBD, nano size particles of NaCl (20∼100 nm) and DOS (50∼800 nm) were generated by an electrical tubefurnace and an atomizer, respectively. Particle collection efficiencies of all the cases increased withincrease of DBD electric power that the results corresponded to product of V by I whose magnitudes werethe largest in triangular voltage waveform.
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