Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Experimental Study on Particle Collection Efficiency of Axial-flow Cyclone in Air Handling Unit

공기조화기 장착용 축상유입식 싸이클론의 입자제거효율에 대한 실험적 연구

  • Kim, Se-Young (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Kwon, Soon-Bark (Urban Transit Research Department, Korea Railroad Research Institute) ;
  • Park, Duck-Shin (Urban Transit Research Department, Korea Railroad Research Institute) ;
  • Cho, Young-Min (Urban Transit Research Department, Korea Railroad Research Institute) ;
  • Kim, Jin-Ho (Urban Transit Standardization Corps, Korea Railroad Research Institute) ;
  • Kim, Myung-Joon (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Tae-Sung (School of Mechanical Engineering, Sungkyunkwan University)
  • 김세영 (성균관대학교 기계공학부) ;
  • 권순박 (한국철도기술연구원 도시철도공기질개선연구단) ;
  • 박덕신 (한국철도기술연구원 도시철도공기질개선연구단) ;
  • 조영민 (한국철도기술연구원 도시철도공기질개선연구단) ;
  • 김진호 (한국철도기술연구원 도시철도표준화연구단) ;
  • 김명준 (성균관대학교 기계공학부) ;
  • 김태성 (성균관대학교 기계공학부)
  • Received : 2011.04.04
  • Accepted : 2011.05.24
  • Published : 2011.06.30
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Abstract

A novel particle removal system for air handling unit (AHU) of subway station was evaluated experimentally. The novel system was designed in order to minimize the maintenance cost by applying axial-flow cyclones. The system consists of multiple cyclone units and dust trap. Based on our previous numerical study, it was found to be effective for removal $1\sim10{\mu}m$ sized dust particles. In this study, we manufactured the mock-up model and evaluated the model experimentally. Liquid and solid test particles were generated for evaluating collection efficiency of the system and the pressure drop was monitored. The collection efficiency was varied from 41.2% to 85.9% with increasing the sizes of particle from 1 to $6.5{\mu}m$ by particle count ratio of inlet and outlet. The pressure drop was maintained constant less than $20mmH_2O$. In addition, the collection efficiency was estimated by total mass for solid test particles. It was found that the collection efficiency was 65.7% by particle mass ratio of inlet and outlet. It shows that present system can replace current pre-filters used in subway HVAC system for removing particulate matters with minimal operational cost.

Keywords

References

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