Application of magnetic field to iron contained dust capture

초록

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

키워드