Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Analysis of Smoke Control According to Jet Fan Location in Straight Long Tunnel

제트 팬 설치 위치에 따른 직선터널 내의 제연해석

  • Byun, Ju-Suk (Songpa Technology Appraisal Center, Kibo Technology Fund) ;
  • Lim, Hyo-Jae (Department of Mechanical Engineering, Hoseo University) ;
  • Kang, Shin-Hyung (Department of Mechanical Engineering, Konyang University) ;
  • Lee, Jin-Ho (School of Mechanical Engineering, Yonsei University)
  • Published : 2007.09.10
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Abstract

In this study, jet fans are installed with 4 cases in the straight long tunnel; inlet-side setup, middle-side setup, outlet-side setup, and dispersion setup. A bus is selected as fired car, of which fire size is 20MW. And fired car locates at 100m, 700m, 1500m position from tunnel inlet, respectively. FLUENT, commercial finite-volume code, is used to analyze the performance. The velocity profile, $CO_2$ concentration, temperature distribution are examined for analysis. Performance of smoke control is compared by the backlayering length. Consequently, inlet-side setup of jet fans is a little more efficient than other cases considering the fire occurrence frequency in tunnel.

Keywords

References

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