Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Ventilation in a Long Road Tunnel

종류식 도로터널내에서의 환기 거동에 관한 연구

  • 양판석 (한양대학교 대학원 기계공학과) ;
  • 조영진 (한양대학교 대학원 기계공학과) ;
  • 이재헌 (한양대학교 공과대학 기계공학과)
  • Received : 1997.12.20
  • Published : 1998.08.01
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Abstract

Longitudinal distributions of the extinction coefficient and concentrations of hazardous gases in a long tunnel located in urban area haute been predicted theoretically. The results are compared with design criteria. It is found that the maximum concentrations of both CO and $NO_X$ in the tunnel are lower than the design criteria. However, the maximum extinction coefficient, generally considered to be a governing factor for ventilating flow rate, is shown lower than the design criterion. Therefore, it is suggested that the design criterion of the extinction coefficient should be increased to a slightly larger value.

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Supported by : 한양대학교, 한국과학재단