Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Application of magnetic field to iron contained dust capture

  • Huang, Shan (Department of Environmental Science Engineering, Kyunghee University) ;
  • Park, Hae-Woo (Department of Environmental Science Engineering, Kyunghee University) ;
  • Jo, Young-Min (Department of Environmental Science Engineering, Kyunghee University) ;
  • Park, Young-Koo (Department of Environmental Engineering, Kangwon National University) ;
  • Kim, Youn-Che (Department of Material and Metallurgical Engineering, Kangwon National University)
  • Received : 2014.02.05
  • Accepted : 2014.02.27
  • Published : 2014.03.30
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Abstract

Indoor air quality including metro subway is of recent interests in large cities. Inflow air to the inside of the train and circulating air flow through MVAC of stations contain large amount of iron based fine particles. This paper evaluated the collection of such a dust by magnetic filters as comparing to conventional particle capturing mechanisms such as inertia, direct impaction and diffusion. It was found that filtration velocity, magnetic field intensity, and fiber size were the most important parameters for magnetic filtration. Application of magnetic force obviously enhances the collection efficiency particularly in fine modes smaller than 10 mm. However, its effect was found greater in 2.5 mm than submicron particles.

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