Fire Safety Analysis of a Railway Compartment using Computational Fluid Dynamics

Article English OPEN
Enbaya, Anwar ; Asim, Taimoor ; Mishra, Rakesh ; Rao, Raj B. K. N. (2015)
  • Publisher: COMADEM International
  • Subject: TJ

Trains are considered to be the safest on-land transportation means for both passengers and cargo. Train accidents have been mainly disastrous, especially in case of fire, where the consequences are extensive loss of life and goods. The fire would generate smoke and heat which would spread quickly inside the railway compartments. Both heat and smoke are the primary reasons of casualties in a train. This study has been carried out to perform numerical analysis of fire characteristics in a railway compartment using commercial Computational Fluid Dynamics code ANSYS. Non-premixed combustion model has been used to simulate a fire scenario within a railway compartment, while Shear Stress Transport k-ω turbulence model has been used to accurately predict the hot air turbulence parameters within the compartment. The walls of the compartment have been modelled as no-slip stationary adiabatic walls, as is observed in real life conditions. Carbon dioxide concentration (CO2), temperature distribution and air flow velocity within the railway compartment has been monitored. It has been observed that the smoke above the fire source flows to both sides of the compartment. The highest temperature zone is located downstream the fire source, and gradually decreases with the increase in the distance from the fire source. It can be seen that CFD can be used as an effective tool in order to analyse the evolution of fire in railway compartments with reasonable accuracy. The paper also briefly discusses the topical reliability issues.
  • References (18)
    18 references, page 1 of 2

    Mo, S. Li, Z. Liang, D. Li, J. and Zhou, N. (2013). Analysis of Smoke Hazard in Train Compartment Fire Accidents Base on FDS, Procedia Engineering, Vol. 52, 284-289.

    White, N. (2010). Fire Development in Passenger Trains, Master Thesis, Centre for Environment Safety and Risk Engineering, Victoria University, Australia.

    Dowling, V. and White, N. (2004). Fire Sizes in Railway Passenger Saloons, Fire Safety Science, 6.

    Chiam, B. H. (2005). Numerical Simulation of a Metro Train Fire, Fire Engineering Research Report 05/1, Department of Civil Engineering, University of Canterbury, New Zealand.

    Babrauskas, V. and Peacock, R. D. (1992). Heat release rate: The single most important variable in fire hazard, Fire Safety Journal, Vol. 18, Issue 3, 255-272.

    Jahn, W. Rein, G. and Torero, J. L. (2009). The Effect of Model Parameters on the Simulation of Fire Dynamics, Fire Safety Science, Vol. 9, 1341-1352.

    7. Rusch, D. Blum, L. Moser, A. and Roesgen, T. (2008). Turbulence model validation for fire simulation by CFD and experimental investigation of a hot jet in crossflow, Fire Safety Journal, Vol. 43, Issue 6, 429-441.

    8. Andreini, A. Da Soghe, R. Giusti, A. and Caruso, L. (2011). Pyrolysis Modeling and Numerical Simulation of Rail Carriage Fire Scenarios for the Safe Design of a Passenger Train, Department of Energy Engineering, University of Florence, Italy.

    9. Palmer, E. Miahra, R. and Fieldhouse, J. (2009). An Optimisation Study of a Multi-Row Pin-Vented Brake Disc to Promote Brake Cooling using Computational Fluid Dynamics, Proceedings of the Institution of Mechanical Engineers, Part: D.

    10. Palmer, E. Miahra, R. and Fieldhouse, J. (2006). Optimisation of Pin Shape and its Configuration for a Pin type Vent Brake Disc using CFD, FISITA World Automotive Congress, Yokohama, Japan.

  • Metrics
    views in OpenAIRE
    views in local repository
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    University of Huddersfield Repository - IRUS-UK 0 182
Share - Bookmark