Abstract
Vehicular emissions can easily contaminate the air quality of the traffic tunnel especially during traffic congestion or low vehicle speeds, which would pose serious health hazards to passengers and drivers. In this study, Carbon Monoxide (CO) concentration was simulated using a computational fluid dynamic inside the Sayad Tunnel in Tehran. Three-dimensional simulation using CFX is carried out to investigate the effect of tunnel geometry, vehicles’ speed, the ventilation systems, and the fuel type on the CO concentration. For the making accurate simulation, the geometry of the tunnel was divided into grids and transmitted to the Ansys CFX. The result showed that the maximum concentration of CO for the top and bottom floors were 47.13 and 42.47 ppm respectively. Compared with the standards, these levels are not higher than the 8-h standard limit (109 ppm) for human health. In conclusion, using a three-dimensional CFD model for CO simulation is a suitable method to show and analyze the concentration in particular in the closed spaces.
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References
Lee, S.R., Ryou, H.S.: A numerical study on smoke movement in longitudinal ventilation tunnel fires for different aspect ratio. Build. Environ. 41(6), 719–725 (2006)
Eftekharian, E., Abouali, O., Ahmadi, G.: An improved correlation for pressure drop in a tunnel under traffic jam using CFD. J. Wind Eng. Ind. Aerodyn. 143, 34–41 (2015)
Ashrafi, K., Shafie-pour, M., Kalhor, M., Esfahanian, V.: Numerical simulation of air pollutant distribution in urban tunnels. Environ. Model. Assess. 17(5), 555–564 (2012)
Neofytou, P., Venetsanos, A.G., Vlachogiannis, D., Bartzis, J.G., Scaperdas, A.: CFD simulations of the wind environment around an airport terminal building. Environ. Model Softw. 21(4), 520–524 (2006)
Clausen, P.A., Liu, Z., Xu, Y., Kofoed-Sørensen, V., Little, J.C.: Influence of air flow rate on emission of DEHP from vinyl flooring in the emission cell FLEC: measurements and CFD simulation. Atmos. Environ. 44(23), 2760–2766 (2010)
Hanna, S.R., Hansen, O.R., Ichard, M., Strimaitis, D.: CFD model simulation of dispersion from chlorine railcar releases in industrial and urban areas. Atmos. Environ. 43(2), 262–270 (2009)
Karim, A., Nolan, P.: Modelling reacting localized air pollution using computational fluid dynamics (CFD). Atmos. Environ. 45(4), 889–895 (2011)
Dong, J., Tao, Y., Xiao, Y., Tu, J.: Numerical simulation of pollutant dispersion in urban roadway tunnels. J. Comput. Multiph. Flows 9(1), 26–31 (2017)
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The authors would like to thank Tehran Municipality for their financial support.
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Karimi, H., Riazi, B., Mohhammadi, M. (2019). Application of Computational Fluid Dynamics in the Simulation of Carbon Monoxide Distribution, a Case Study: Sayad Underground Tunnel in Tehran. In: Mustafa, Y., Sadkhan, S., Zebari, S., Jacksi, K. (eds) Recent Researches in Earth and Environmental Sciences. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-18641-8_1
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DOI: https://doi.org/10.1007/978-3-030-18641-8_1
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