Numerical analysis of a railway compartment fire

Anwar-Abdulatef-Faraj Enbaya, Taimoor Asim, Rakesh Mishra, B. K N Raj Rao

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

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 decreased with the increase in the distance from the fire source. Hence, 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.
Original languageEnglish
Title of host publicationCurrent Trends in Reliability, Availability, Maintainability and Safety
Subtitle of host publicationAn Industry Perspective
EditorsUday Kumar, Alireza Ahmadi, Ajit Kumar Verma, Prabhakar Varde
PublisherSpringer Verlag
Pages471-484
Number of pages14
ISBN (Electronic)9783319235974
ISBN (Print)9783319235967
Publication statusPublished - 2016

Publication series

NameLecture Notes in Mechanical Engineering
PublisherSpringer
ISSN (Print)2195-4356

Fingerprint

Numerical analysis
Fires
Smoke
Computational fluid dynamics
Air
Turbulence models
Flow velocity
Shear stress
Carbon dioxide
Accidents
Temperature distribution
Turbulence

Cite this

Enbaya, A-A-F., Asim, T., Mishra, R., & Raj Rao, B. K. N. (2016). Numerical analysis of a railway compartment fire. In U. Kumar, A. Ahmadi, A. K. Verma, & P. Varde (Eds.), Current Trends in Reliability, Availability, Maintainability and Safety: An Industry Perspective (pp. 471-484). (Lecture Notes in Mechanical Engineering). Springer Verlag.
Enbaya, Anwar-Abdulatef-Faraj ; Asim, Taimoor ; Mishra, Rakesh ; Raj Rao, B. K N. / Numerical analysis of a railway compartment fire. Current Trends in Reliability, Availability, Maintainability and Safety: An Industry Perspective . editor / Uday Kumar ; Alireza Ahmadi ; Ajit Kumar Verma ; Prabhakar Varde. Springer Verlag, 2016. pp. 471-484 (Lecture Notes in Mechanical Engineering).
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Enbaya, A-A-F, Asim, T, Mishra, R & Raj Rao, BKN 2016, Numerical analysis of a railway compartment fire. in U Kumar, A Ahmadi, AK Verma & P Varde (eds), Current Trends in Reliability, Availability, Maintainability and Safety: An Industry Perspective . Lecture Notes in Mechanical Engineering, Springer Verlag, pp. 471-484.

Numerical analysis of a railway compartment fire. / Enbaya, Anwar-Abdulatef-Faraj; Asim, Taimoor; Mishra, Rakesh; Raj Rao, B. K N.

Current Trends in Reliability, Availability, Maintainability and Safety: An Industry Perspective . ed. / Uday Kumar; Alireza Ahmadi; Ajit Kumar Verma; Prabhakar Varde. Springer Verlag, 2016. p. 471-484 (Lecture Notes in Mechanical Engineering).

Research output: Chapter in Book/Report/Conference proceedingChapter

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PB - Springer Verlag

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Enbaya A-A-F, Asim T, Mishra R, Raj Rao BKN. Numerical analysis of a railway compartment fire. In Kumar U, Ahmadi A, Verma AK, Varde P, editors, Current Trends in Reliability, Availability, Maintainability and Safety: An Industry Perspective . Springer Verlag. 2016. p. 471-484. (Lecture Notes in Mechanical Engineering).