Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Elemental components analysis according to the size of fine particles emitted from a coal-fired power plant using an ejector-porous tube dilution sampling and ELPI

이젝터-다공튜브 희석 샘플링과 ELPI를 이용한 석탄화력발전소 배출 미세먼지의 입자 크기에 따른 성분 분석

  • Shin, Dongho (Department of Sustainable Environment Research, Korea Institute of Machinery & Materials) ;
  • Park, Daehoon (Department of Sustainable Environment Research, Korea Institute of Machinery & Materials) ;
  • Joe, Yunhui (Department of Sustainable Environment Research, Korea Institute of Machinery & Materials) ;
  • Kim, Younghun (Department of Sustainable Environment Research, Korea Institute of Machinery & Materials) ;
  • Hong, Kee-Jung (Department of Sustainable Environment Research, Korea Institute of Machinery & Materials) ;
  • Lee, Gunhee (Department of Sustainable Environment Research, Korea Institute of Machinery & Materials) ;
  • Han, Bangwoo (Department of Sustainable Environment Research, Korea Institute of Machinery & Materials) ;
  • Hwang, Jungho (Mechanical Engineering, Yonsei University)
  • 신동호 (한국기계연구원 지속가능환경연구실) ;
  • 박대훈 (한국기계연구원 지속가능환경연구실) ;
  • 조윤희 (한국기계연구원 지속가능환경연구실) ;
  • 김영훈 (한국기계연구원 지속가능환경연구실) ;
  • 홍기정 (한국기계연구원 지속가능환경연구실) ;
  • 이건희 (한국기계연구원 지속가능환경연구실) ;
  • 한방우 (한국기계연구원 지속가능환경연구실) ;
  • 황정호 (연세대학교 기계공학과)
  • Received : 2022.04.12
  • Accepted : 2022.07.17
  • Published : 2022.09.30
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Abstract

In order to understand the characteristics of fine particles emitted from coal-fired power plant stacks, it is important to analyze the size distribution and components of particles. In this study, particle size distributions were measured using the ejector-porous tube dilution device and an ELPI system at a stack in a coal-fired power plant. Main elemental components of particles in each size interval were also identified through TEM-EDS analysis for the particles collected in each ELPI stage. Particle size distributions based on number and mass were analyzed with component distributions from 0.006 to 10 ㎛. The highest number concentration was about 0.01 ㎛. The main component of the particles consisted of sulfur, which indicated that sulfate aerosols were generated by gas-to-particle conversion of SO2. In a mass size distribution, a mono-modal distribution with a mode diameter of about 2 ㎛ was shown. For the components of PM1.0 (particles less than 1 ㎛), the abundance order was F > Mg > S > Ca, and however, for the components of PM10 (particles less than 10 ㎛), it was in the order of Fe > S > Ca > Mg. The elemental components by particle size were confirmed.

Keywords

Acknowledgement

본 연구는 환경부 "미세먼지 사각지대 해소 및 관리 실증화 기술개발 사업"으로 지원받아 수행하였고, 이에 감사드립니다. (grant no. 2020003070002)

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