한국입자에어로졸학회지 (Particle and aerosol research)

  • 제16권4호
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  • Pages.119-130
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  • 2020
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  • 1738-8716(pISSN)
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  • 2287-8130(eISSN)
한국입자에어로졸학회 (Korean Association for Particle and Aerosol Research)
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지하철 공기질 개선을 위한 분리형 2단 전기집진기의 집진 특성 분석

Particle collection performance of a separated two-stage electrostatic precipitator for subway air purification

  • 김예슬 (한국기계연구원 환경시스템연구본부) ;
  • 이예완 (한국기계연구원 환경시스템연구본부) ;
  • 김용진 (한국기계연구원 환경시스템연구본부) ;
  • 한방우 (한국기계연구원 환경시스템연구본부) ;
  • 김학준 (한국기계연구원 환경시스템연구본부)
  • Kim, Ye-Sle (Environmental System Research Division, Korea Institute of Machinery & Materials (KIMM)) ;
  • Lee, Yeawan (Environmental System Research Division, Korea Institute of Machinery & Materials (KIMM)) ;
  • Kim, Yong-Jin (Environmental System Research Division, Korea Institute of Machinery & Materials (KIMM)) ;
  • Han, Bangwoo (Environmental System Research Division, Korea Institute of Machinery & Materials (KIMM)) ;
  • Kim, Hak-Joon (Environmental System Research Division, Korea Institute of Machinery & Materials (KIMM))
  • 투고 : 2020.11.30
  • 심사 : 2020.12.23
  • 발행 : 2020.12.31
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초록

In this study, we developed a separated two-stage electrostatic precipitator applicable in a subway air conditioning system. We studied the characteristics of collection efficiency of 0.3 ㎛ particle and ozone generation at different charger sizes and gaps of collector plates. Also, we compared the performance of the two-stage ESP to the MERV 10 filter with the removal efficiency of 10% used in actual subway air conditioning system. The maximum collection efficiency of 0.3 ㎛ particle was 93% at A charger (600 mm×250 mm×600 mm) and 84% at B charger (330 mm×280 mm×330 mm). Especially, with voltages applied to chargers with collection efficiency of about 80% or more, the ozone concentration of two different chargers was 5 ppb to 35 ppb. Finally, the filter quality of the collector developed in this study was 400 times higher than that of the MERV 10 filter. Therefore, it was concluded that the two-stage ESP could be a promising PM removal device suitable for subway air conditioning system.

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