Study on Wet Electric Precipitation with Electrospray for Removal of PM1.0 in Exhaust Gas

배가스 내 PM1.0 미세먼지 제거를 위한 정전분무 습식 전기집진기에 대한 연구

  • Cho, Yeonjoo (Department of Energy Engineering, Chung-Ang Univeristy) ;
  • Lim, Hyunjeong (Department of Energy Engineering, Chung-Ang Univeristy) ;
  • Kim, Soyeon (School of Energy Systems Engineering, Chung-Ang University) ;
  • Choi, Sangmi (School of Energy Systems Engineering, Chung-Ang University) ;
  • Jeong, Min Kyu (School of Energy Systems Engineering, Chung-Ang University) ;
  • Kim, Minsung (Department of Energy Engineering, Chung-Ang Univeristy)
  • 조연주 (중앙대학교 에너지공학과) ;
  • 임현정 (중앙대학교 에너지공학과) ;
  • 김소연 (중앙대학교 에너지시스템공학부) ;
  • 최상미 (중앙대학교 에너지시스템공학부) ;
  • 정민규 (중앙대학교 에너지시스템공학부) ;
  • 김민성 (중앙대학교 에너지공학과)
  • Received : 2018.06.08
  • Published : 2020.05.01

Abstract

The need to improve the performance of the dust collector by increasing the fine dust pollution in Korea is eminent. In this study, electrostatic spray wet electrostatic precipitator is used to remove Particulate Matter (PM). In order to enter the Cone-jet mode, which is the most stable spray mode among the various modes of electrostatic spraying, an appropriate voltage-flow condition must be satisfied, and a voltage-flow interval enabling this can be expressed as Stability Island. The voltage at which the conduit mode starts in the Stability Island section is referred to as the electrostatic spray minimum voltage (Onset Voltage). However, the conventional electrostatic spray is uses a very low flowrate, at most few millilitres per minute. The use of much higher flowrates has introduced different patterns of electrospray modes. In this study, the different spray modes will be studied in detail.

최근 한국의 미세 먼지 오염도가 급격히 증가함에 따라 배가스 내 미세먼지를 더욱 효과적으로 집진할 수 있는 기술에 대한 관심 또한 증가하였다. 본 연구에서는 습식 전기집진기와 사이클론 집진기에 정전분무 기술을 결합하여 집진 성능의 증대를 목표로 한다. 정전분무는 일반적으로 질량분석, 혹은 반도체 코팅에 이용되므로 그 유량이 매우 적다. 분무 액적과 미세먼지의 이온결합을 통하여 집진을 해야하는 본 연구의 특성상 기존 정전분무의 유량에 대비하여 매우 큰 유량을 사용하게 된다. 따라서 기존의 정전분무 시작 전압, 혹은 분무 형상과는 다른 형상을 보일 수 있다. 본 연구에서는 기존 정전분무와는 다른 유량 및 전압 범위를 사용함으로써 예상되는 다양한 형상 특성을 살펴보고자 한다.

Keywords

References

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