International Journal of Air-Conditioning and Refrigeration

  • 제17권3호
  • /
  • Pages.94-99
  • /
  • 2009
  • /
  • 2010-1325(pISSN)
  • /
  • 2010-1333(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

Numerical Analysis of Axial-Flow Cyclone Separator for Subway Station HVAC System Pre-Filter

  • 발행 : 2009.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In the Korean subway station, three types of pre-filters, which include auto filter, electrostatic precipitator (ESP) and auto cleaning demister, are widely used. However, these devices have some problems such as the difficulty of maintenance and high operating cost. In this study, axial-flow cyclone separator was employed as a pre-filter inside a heating, ventilation, and air conditioning (HVAC) system. 3-dimensional computational fluid dynamics (CFD) analysis was performed on a single unit axial-flow cyclone and coupled unit axial-flow cyclone. Calculated and measured pressure drop of the designed axial-flow cyclone were found be comparable to other types of pre-filters and the observed cut-off diameter was less than 10 micron. Considering lower operating and maintenance cost, axial-flow cyclone was proved to be a better solution as a pre-filter.

키워드

참고문헌

  1. Seoul metropolitan government, 2008, Seoul statistics annual report 2008
  2. Nieuwenhuijsen, M. J., G$\acute{o}$mez-Perales, J. E.., Colvile, R. N., 2007, Levles of particulate air pollution, its elemental composition, determinants and health effects in metro systems, Atmos. Environ.. Vol. 41, pp. 7995-8006 https://doi.org/10.1016/j.atmosenv.2007.08.002
  3. Adams, H. S., Nieuwenhuijsen, M. J., Colvile, M. J., et al., 2001, Fine particle (PM2.5) personal exposure levels in transport microenvironments, Sci. Total. Environ., Vol. 279(1-3), pp. 29-44 https://doi.org/10.1016/S0048-9697(01)00723-9
  4. G$\acute{o}$mez-Perales, J. E.., Colvile, R. N., Nieuwenhuijsen, M. J., et al., 2004, Commuters' exposure to PM2.5, CO, and benzene in public transport in the metropolitan area of Mexico City, Atmos. Environ..Vol. 38(8), pp. 1219-1229 https://doi.org/10.1016/j.atmosenv.2003.11.008
  5. Johansson, C., Johansson, P. A., 2003, Particulate matter in the underground of Stockholm, Atmos. Environ.. Vol. 37(1), pp. 3-9 https://doi.org/10.1016/S1352-2310(02)00833-6
  6. Park, D. U., Ha, K. C., 2008, Characteristics of PM10, PM2.5, CO2, and Co monitored in interiors and platforms of subway train in Seoul, Korea, Environ. Int., Vol. 34, pp. 629-634 https://doi.org/10.1016/j.envint.2007.12.007
  7. Karlsson, H. L., Nilsson, L., M$\ddot{o}$ller, L., 2005, Subway particles are more genotoxic than street particles and induce oxidative stress in cultured human lung cells, Chem. Res. Toxicol., Vol. 18, pp. 19-23 https://doi.org/10.1021/tx049723c
  8. Kwon, S. B., Park, D. S., Cho, Y. M. et al., 2006, Particle collection efficiency of axial-inlet cyclone for high-flow ventilation system in the subway, Proceeding of the 43rd meeting of KOSAE, pp. 241-242
  9. Slack, M. D., Prasad, R. O., Bkker, A., et al., 2000, Advances in cyclone modeling using unstructured grids, Chem. Eng. Res. Des., pp. 241-242