Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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The Improvement of Collection Efficiency of Electrostatic Precipitator

전기 집진기의 집진 효율 향상에 관한 연구

  • Ahn, Kook-Chan (Department of Mechanical Design Engineering, Jinju National University) ;
  • Kim, Bong-Hwan (Department of Air Conditioning, Refrigerating & Sanitary Systems, Yangsan College) ;
  • Lee, Gwang-Seok (Department of Electronic Engineering, Jinju National University)
  • 안국찬 (진주산업대학교 기계설계공학과) ;
  • 김봉환 (양산대학 기계설비과) ;
  • 이광석 (진주산업대학교 전자공학과)
  • Published : 2002.12.01
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Abstract

This paper demonstrates the effects of dust electrical resistivity on electrostatic precipitability. The effects of gas temperature, velocity and humidity on the collection efficency were considered by used of coal fly ashes from fluidized bed combustion boiler. The experiments for collection efficiency were carried out in the pilot plant. The ashes which have non-spherical geometry and high electrical resistivity were used. Electrical resistivity is an important property for the collection efficiency in the electrostatic precipitators. Fly ash resistivity as a function of temperature up $350{\circ}C$ and water concentration(up to 15%) has been experimentally investigated using the resistivity test equipment consisted of the movable electrode, dust cup, and furnace. As the resistivity of fly ash in the operating temperature($150{\circ}C$) of an electrostatic precipitator was measured higher than $1010{\Omega}{\cdot}$cm, flue gas conditioning in the electrostatic precipitator to reduce the resistivity of fly ash is required.

Keywords

References

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