Experimental Study of Axial-flow Cyclone in the Air Handing Unit
Particulate matter (PM) is one of the major indoor air pollutants especially in the subway station in Korea. In order to remove PM in the subway station, several kinds of PM removal system such as medium filter, auto suction filter, auto washing filter and electrostatic precipitator are used in the air handling unit (AHU) of subway stations. However, those systems are prone to operation and maintenance problems since the filter-regeneration unit consisting of electrical or water jet parts might malfunction due to the high load of particulates unless the filter medium is periodically replaced. In this study, we developed a novel particle removal system with minimized maintenance requirement comparing to above mentioned methods. The novel system consists of cyclone units and dust trap was developed based on previous numerical study. The mock-up system was evaluated by particle collection efficiency and pressure drop experimentally. The results obtained from particle number concentration showed that the collection efficiency of 41.2 ~ 85.9％ for the particles of 1 ~ 6.5 . with the pressure drop of less than 20 mmH2O. The collection efficiency estimated by total mass collection also showed 65.7％ which was higher than that of current filter system by 2 times. We believed that the novel axial-flow cyclone system is cost-effective and efficient way of removing particulate matters in the size range of 1~10 .m in the AHU of subway station or buildings.
Air handing unit Axial-flow cyclone Air filter Subway station
Seyoung Kim Soon-Bark Kwon Duck-Shin Park Youngmin Cho Joon-Goo Kang Chang-Heon Shin Myungjoon Kim Taesung Kim
Korea Railroad Research Institute,Woram,Uiwang,437-757,Korea Sungkyunkwan University,Chonchon,Suwon, Korea Railroad Research Institute,Woram,Uiwang,437-757,Korea RITCO,Ywoksam,Seoul,120-700,Korea Seoul Metro,Dongjak,Seoul,156-080,Korea Sungkyunkwan University,Chonchon,Suwon,440-746,Korea
国际会议
西安
英文
1048-1053
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）