International Journal of Air-Conditioning and Refrigeration

  • 제17권2호
  • /
  • Pages.45-51
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  • 2009
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  • 2010-1325(pISSN)
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  • 2010-1333(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

Analysis of Air Flow Rate through Subway Vent Shaft with Mechanical Ventilation System for Shape Change of Vent Shaft

  • Kim, Jung-Yup (Construction Quality Policy Department, Korea Institute of Construction Technology)
  • 발행 : 2009.06.30
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초록

Three-dimensional numerical analyses of mechanical ventilation system in vent shaft of subway in operation are carried out in relation with the different air flow passage of vent shaft and two ventilation operation modes of push/pull, The ventilation characteristics of vent shaft with regard to the shape change are evaluated. And the air flow rate through the vent shaft by ventilation system is measured within subway in operation to assess the accuracy and applicability of the numerical analysis method. The decrease of air flow rate due to vent-shaft change are between 0.7 to 2.2% in the cases examined.

키워드

참고문헌

  1. USDT (United States Department of Transportation) 1976 Subway Environmental Design Handbook
  2. Hara, T. 1967 Aerodynamic drag of trains in tunnels. Quarterly Report of Railway Technical Research Institute, Vol.8, No.4, pp.229-235
  3. Saiben, M. 1971 Fluid mechanics of train-tunnel systems in unsteady motion. AIAA Journal, Vol.9, No.8, pp.1538-1545 https://doi.org/10.2514/3.49957
  4. Institute for Rapid Transit 1972 Subway Aerodynamic and Thermodynamic Test (SAT) Facility Single-Track Aerodynamics. Technical Report No. UMTA-DC-MTD-7-72-15
  5. Kim, J.Y. & Kim, K.Y. 2007 Experimental and numerical analysis of train-induced unsteady tunnel flow in subway. Tunneling and Underground Space Technology, Vol.22, pp166-172 https://doi.org/10.1016/j.tust.2006.06.001
  6. Yau, R., Cheng, V., Lau, K.P. & Lai, F. 2003 Design and analysis of tunnel ventilation system for the extension of an existing railway tunnel in Hong Kong. 11th International Symposium on the Aerodynamics & Ventilation of Vehicle Tunnel, Luzern Switzerland, pp.323-337
  7. Mckinney, D.M. & Miclea, P.C. 2003 Use of CFD to estimate airflow through PSDs during train dwell. 11th International Symposium on the Aerodynamics & Ventilation of Vehicle Tunnel, Luzern Switzerland, pp.631-641
  8. CFX 11 2007 CFX11 Documentation, Ansys Inc.
  9. SAREK 2001 Handbook of Air-Conditioning and Refrigeration [Korean]