Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Optimal Distance between Positive and Negative Electrode-Plates Coated with Activated Carbon in Dust Removal Chamber

활성탄전극을 이용한 분진제거에서 전극의 적정 간격에 관한 연구

  • Kim, Kwang Soo (Department of Environment Research, Korea Institute of Construction Technology) ;
  • Park, Hyun Chul (Department of Construction Environment Engineering, University of Science and Technology) ;
  • Jun, Tae Hwan (Department of Construction Environment Engineering, University of Science and Technology) ;
  • Lee, Ju Haeng (Department of Construction Environment Engineering, University of Science and Technology) ;
  • Nam, Sang Chul (Department of Environment Research, Korea Institute of Construction Technology)
  • 김광수 (한국건설기술연구원 환경연구실) ;
  • 박현철 (과학기술연합대학원대학교 건설환경공학과) ;
  • 전태환 (과학기술연합대학원대학교 건설환경공학과) ;
  • 이주행 (과학기술연합대학원대학교 건설환경공학과) ;
  • 남상철 (한국건설기술연구원 환경연구실)
  • Received : 2013.10.11
  • Accepted : 2013.11.06
  • Published : 2013.11.30
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Abstract

The purposes of this research are to study on optimal distance between positive and negative electrodes in dust removal chamber. The experiments were performed with electrode-plate gab arranging in order of 3 cm, 2 cm, 1 cm in series while varying influent flow-rate. From the experimental results of dust removal the optimal influent linear velocity was 6 cm/sec and the total mass of attached dust on the surface of electrode-plate was increased as electrode-plate gab is closer. But in case of electrode-plate gab being very close about 1 cm or so, the attached dust on the surface of electrode-plate was shown releasing from electrode-plate due to dust electric-charge changing (reverse ionization). Evantually. optimal distance between positive and negative electrode-plates was about 2 cm and also optimal dust loading rate was about $24mg/min{\cdot}m^2$.

본 연구의 목적은 분진제거 장치에서 전극간의 적정간격을 알아보기 위한 것이다. 실험은 전극간격을 3 cm, 2 cm, 1 cm로 직렬로 놓고 유입유량을 변화시켜 수행하였다. 실험결과로부터 분진제거를 위한 적정 선속도는 6 cm/sec였고 전극표면에 부착되는 분진 총량은 전극의 간격이 가까울수록 증가하였다. 그러나 1 cm 정도로 매우 가까울 경우는 전극판에 부착된 분진은 탈착되었으며 이는 분착된 분진의 역이온화 즉 전하의 변화 때문인 것으로 사료되었다. 결과적으로 전극판에서 양전극과 음전극 간의 간격은 2 cm가 적당하고 이때의 분진부하율은 $24mg/min{\cdot}m^2$였다.

Keywords

References

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