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The Estimation and Application of Optimum Design Variables for Road Tunnel Ventilation System Based on Statistical Analysis  

이보영 ((주)범창종합기술 설계2팀)
유용호 (인하대학교 환경토목공학부)
김진 (인하대학교 공과대학 환경토목공학부)
Publication Information
Tunnel and Underground Space / v.14, no.5, 2004 , pp. 373-380 More about this Journal
Abstract
In this study, the emission rate of pollutant was modified according to the published standards, and the distribution of pollutant concentration was analyzed for each vehicle velocity. This modified emission rate was applied to a model tunnel and it was proved that the required air quantity was reduced to 49%, compared to the PIARC method. From the simulation result, it was proved by using statistics that the most sensitive factor among them is the friction coefficient and it was modified to the value in the range of 0.018 to 0.021. It is also expected that the required air quantity can be decreased form 14.4% to 19.2% according as the coefficient is applied to the domestic model tunnels. In conclusion, it is proposed that the number of jet fans can be reduced and the annual operating cost can be curtailed as well.
Keywords
Optimization of design variable; Friction coefficient; Equivalent resistance area; Statistical analysis; Emission rate;
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