Performance study of a miniature quadru-inlet cyclone》.pdfVIP

Journal of Aerosol Science 90 (2015) 161 –168 Contents lists available at ScienceDirect Journal of Aerosol Science journal homepage: /locate/jaerosci Performance study of a miniature quadru-inlet cyclone Di Liu a, Ta-Chih Hsiao b, Da-Ren Chen a,n a Particle Laboratory, Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Richmond, VA 23284, USA b Graduate Institute of Environmental Engineering, National Central University, Taoyuan 32001, Taiwan a r t i c l e i n f o a b s t r a c t Article history: Received 16 June 2015 A miniature cyclone with four inlets was designed and experimentally calibrated in this Received in revised form study as a size-selective inlet for compact/miniature sensors monitoring ultrafine particles 27 August 2015 (UFPs). The development of compact/miniature UFP sensors stemmed from the concern Accepted 28 August 2015 Available online 8 September 2015 for adverse health effects resulting from ultrafine particles, reported by recent epide- miological studies. The performance of these sensors was often interfered by the presence Keywords: of large particles in sampling stream. Miniature cyclones with multiple inlets can also Miniature cyclone minimize the potential issue of directional aerosol sampling, encountered in single-inlet Quadru-inlet