Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Theoretical Analysis and Experimental Evaluation of Small Cyclone Separator to Remove Fine Particulate Matter

미립 물질 제거를 위한 소형 사이클론 분리기의 이론적 연구 및 실험적 검증

  • Ko, Han Gyul (Dept. of Mechanical and Automotive Engineering, Seoul Nat'l Univ. of Science and Technology) ;
  • Kim, Hong Seok (Dept. of Mechanical and Automotive Engineering, Seoul Nat'l Univ. of Science and Technology)
  • 고한결 (서울과학기술대학교 기계.자동차공학과) ;
  • 김홍석 (서울과학기술대학교 기계.자동차공학과)
  • Received : 2012.06.19
  • Accepted : 2012.08.16
  • Published : 2013.01.01
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Abstract

A cyclone separator has been widely used in various industrial processes for removing fine particulate matter because it is easy to fabricate, cost effective, and adaptable to extremely harsh conditions. However, owing to the complex flow field in cyclones, a complete understanding of the detailed mechanisms of particulate removal has not yet been gained. In this study, a theoretical analysis was performed for calculating the collection efficiency and cut-off size in cyclones by taking into account the effects of geometrical and flow parameters. The collection efficiency and cut-off size values predicted by the theoretical model showed good agreement with experimental measurements for particles with a diameter of $0.5-30{\mu}m$. It was also revealed that the surface friction, along with the flow and geometrical parameters, has a significant effect on the cyclone performance.

사이클론 분리기는 제작이 쉽고, 경제적이며, 가혹한 환경에서도 사용이 가능하기 때문에 다양한 산업공정에서 미립 물질을 제거하기 위한 장비로 널리 활용되고 있다. 하지만 사이클론의 복잡한 유동 특성 때문에 입자를 분리하는 세부적인 메커니즘에 대한 이해는 아직 부족한 실정이다. 본 연구에서는 사이클론 분리기의 기하학적 특성과 유동 파라미터가 미치는 영향을 고려하여 사이클론의 분리효율과 절단입경을 계산하기 위한 이론적인 연구를 진행하였다. 이론적 모델을 통해 예측한 분리효율과 절단입경은 $0.5-30{\mu}m$의 입자에 대한 실험결과와 잘 일치하였다. 또한 사이클론의 성능은 기하학적 특성과 유동 파라미터 뿐 아니라 표면의 마찰특성에도 현저한 영향을 받는 것으로 확인되었다.

Keywords

References

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