Removal of PM2.5 entering through the ventilation duct in an automobile using a carbon fiber ionizer-assisted cabin air filter》.pdf

Journal of Aerosol Science 41 (2010) 935–943 Contents lists available at ScienceDirect Journal of Aerosol Science journal homepage: /locate/jaerosci Removal of PM2.5 entering through the ventilation duct in an automobile using a carbon fiber ionizer-assisted cabin air filter Jae Hong Park a, Ki Young Yoon b, Kwang Chul Noh a, Jeong Hoon Byeon c, Jungho Hwang a,n a School of Mechanical Engineering, Yonsei University, Seoul 120-749, Republic of Korea b Exhaust Emission Engineering Team, Hyundai Motor Company, Hwaseong 445-706, Republic of Korea c LCD Division, Samsung Electronics Co., Ltd., Yongin 446-711, Republic of Korea a r t i c l e i n f o a b s t r a c t Article history: This study evaluated the charging characteristics of a carbon fiber ionizer for PM2.5 and Received 4 January 2010 carried out particle capture laboratory tests after an ionizer was installed upstream of Received in revised form the media of an electret cabin air filter. When the ion concentration per particle (Ni) of 22 June 2010 6 3 the carbon fiber charger was 10 ions/cm , the average charge numbers for each particle Accepted 8 July 2010 were 1.54, 0.88, and 0.49 at 0.6, 1.2, and 1.8 m/s of face velocity, respectively (the particle charging times, t, were 167, 83, and 56 ms, respectively). For these face Keywords: