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Investigation of Flame and Soot Propagation in Non-Air Conditioned Railway Locomotives
Abstract:Propagation of fire through a non-air conditioned railway compartment is studied by virtue of numerical simulations. Simultaneous computational fire dynamics equations, such as Navier-Stokes, lumped species continuity, overall mass and energy conservation, and heat transfer are solved using finite volume based (for radiation) and finite difference based (for all other equations) solver, Fire Dynamics Simulator (FDS). A single coupe with an eight berth occupancy is used to establish the numerical model, followed by the selection of a three coupe system as the fundamental unit of the locomotive compartment. Heat Release Rate Per Unit Area (HRRPUA) of the initial fire is varied to consider a wide range of compartmental fires. Parameters, such as air inlet velocity relative to the locomotive at the windows, the level of interaction with the ambiance and closure of middle berth are studied through a wide range of numerical simulations. Almost all the loss of lives and properties due to fire breakout can be attributed to the direct or indirect exposure to flames or to the inhalation of toxic gases and resultant suffocation due to smoke and soot. Therefore, the temporal stature of fire and smoke are reported for each of the considered cases which can be used in the present or extended form to develop guidelines to be followed in case of a fire breakout.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1126423Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 742
 N. Markatos, M. Malin, and G. Cox, “Mathematical modelling of buoyancy-induced smoke flow in enclosures,” International Journal of Heat and Mass Transfer, vol. 25, no. 1, pp. 63–75, 1982.
 A. Yuen, G. Yeoh, R. Alexander, and M. Cook, “Fire scene reconstruction of a furnished compartment room in a house fire,” Case Studies in Fire Safety, vol. 1, pp. 29–35, 2014.
 S. Vatsal and D. Arup Kumar, “Building fire safety: Numerical simulation and evacuation planning,” in International Conference of the International Building Performance Simulation Association, Hyderabad, India, December 7-9, 2015, vol. 14. IBPSA, 2016, pp. 897–904.
 S.-J. MO, Z.-R. Li, D. Liang, J.-X. Li, and N.-j. Zhou, “Analysis of smoke hazard in train compartment fire accidents base on fds,” Procedia Engineering, vol. 52, pp. 284–289, 2013.
 A. Enbaya, T. Asim, R. Mishra, and R. B. Rao, “Fire safety analysis of a railway compartment using computational fluid dynamics,” International Journal of COMADEM, 2015.
 W.-K. Chow, K. Lam, N. Fong, S. Li, and Y. Gao, “Numerical simulations for a typical train fire in china,” Modelling and Simulation in Engineering, vol. 2011, p. 4, 2011.
 N. White, “Fire development in passenger trains,” Ph.D. dissertation, Victoria University, 2010.
 J. S. Roh, H. S. Ryou, W. H. Park, and Y. J. Jang, “Cfd simulation and assessment of life safety in a subway train fire,” Tunnelling and Underground Space Technology, vol. 24, no. 4, pp. 447–453, 2009.
 R. D. Peacock, P. A. Reneke, W. W. Jones, R. W. Bukowski, and V. Babrauskas, “Concepts for fire protection of passenger rail transportation vehicles: past, present, and future,” Fire and Materials, vol. 19, no. 2, pp. 71–87, 1995.
 H.-T. Chen and S.-K. Lee, “Estimation of heat-transfer characteristics on the hot surface of glass pane with down-flowing water film,” Building and environment, vol. 45, no. 10, pp. 2089–2099, 2010.
 K. McGrattan, S. Hostikka, J. Floyd, H. Baum, R. Rehm, W. Mell, and R. McDermott, “Fire dynamics simulator (version 5), technical reference guide,” NIST special publication, vol. 1018, no. 5, 2004.
 K. B. McGrattan and G. P. Forney, Fire Dynamics Simulator: User’s Manual. US Department of Commerce, Technology Administration, National Institute of Standards and Technology, 2000.