INVESTIGATION OF EFFECTIVE PARAMETERS ON CRITICAL VENTILATION VELOCITY IN UNDERGROUND TUNNELS

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MOUNESAN M.; TALAEE M.R.; MOLATEFI H.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR) Year:2016 | Volume:48 | Issue:1 Page(s): 17-20

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Information Journal Paper

Title

INVESTIGATION OF EFFECTIVE PARAMETERS ON CRITICAL VENTILATION VELOCITY IN UNDERGROUND TUNNELS

Author(s)

MOUNESAN M. | TALAEE M.R. | MOLATEFI H. | Issue Writer Certificate

Keywords

TUNNEL FIREQ2

CRITICAL VELOCITY OF VENTILATIONQ2

BACK LAYERINGQ2

Abstract

Due to the importance of safety in underground tunnels and the health of passengers in emergency modes, analysis and simulation of fires in tunnels and design of an appropriate and efficient ventilation system to reduce damages of fire hazards is necessary. Longitudinal ventilation system is widely used in tunnel ventilation. Critical ventilation velocity in longitudinal system is the amount of airflow necessary to prevent BACK LAYERING of smoke and heat to upstream of fire region. The lower air velocity leads to influence of smoke and heat of fire to the fire upstream, and resulting in reduction of visibility and fresh air in the tunnel. In critical velocity, smoke and heat move to the downstream of the tunnel and provide fresh air and a safe passage for passengers to escape. The aim of this research is to investigate the critical ventilation velocity and effective parameters on it. CFD simulation were performed in this paper to study the critical ventilation velocity by using the code FDS. Effects of fire source shape, vehicle such as a train inside the tunnel, tunnel geometry and slope on the critical ventilation velocity were investigated.

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APA: Copy

MOUNESAN, M., TALAEE, M.R., & MOLATEFI, H.. (2016). INVESTIGATION OF EFFECTIVE PARAMETERS ON CRITICAL VENTILATION VELOCITY IN UNDERGROUND TUNNELS. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), 48(1), 17-20. SID. https://sid.ir/paper/356238/en

Vancouver: Copy

MOUNESAN M., TALAEE M.R., MOLATEFI H.. INVESTIGATION OF EFFECTIVE PARAMETERS ON CRITICAL VENTILATION VELOCITY IN UNDERGROUND TUNNELS. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR)[Internet]. 2016;48(1):17-20. Available from: https://sid.ir/paper/356238/en

IEEE: Copy

M. MOUNESAN, M.R. TALAEE, and H. MOLATEFI, “INVESTIGATION OF EFFECTIVE PARAMETERS ON CRITICAL VENTILATION VELOCITY IN UNDERGROUND TUNNELS,” JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), vol. 48, no. 1, pp. 17–20, 2016, [Online]. Available: https://sid.ir/paper/356238/en

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