Determination of the heat release rate inside operational road tunnels by comparison with CFD calculations

Migoya Valor, Emilio and García García, Javier and Crespo Martínez, Antonio and Gago, Constantino and Rubio, Almudena (2010). Determination of the heat release rate inside operational road tunnels by comparison with CFD calculations. "Tunnelling and Underground Space Technology", v. 26 (n. 1); pp. 211-222. ISSN 0886-7798. https://doi.org/10.1016/j.tust.2010.05.001.

Description

Title: Determination of the heat release rate inside operational road tunnels by comparison with CFD calculations
Author/s:
  • Migoya Valor, Emilio
  • García García, Javier
  • Crespo Martínez, Antonio
  • Gago, Constantino
  • Rubio, Almudena
Item Type: Article
Título de Revista/Publicación: Tunnelling and Underground Space Technology
Date: May 2010
ISSN: 0886-7798
Volume: 26
Subjects:
Freetext Keywords: Heat release rate; Road tunnel fire; Pool fire; Zone model; CFD; Full-scale experiments
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética y Fluidomecánica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (553kB) | Preview

Abstract

Usually, during a fire inside a tunnel, the average heat release rate (HRR) is estimated according to the type of vehicle. Frequently, the overall HRR is considered, however it is also necessary to know its time evolution to design real time systems, particularly ventilation, which respond to fire events or signals as fast as possible. Nowadays, there is not a well established and generally accepted procedure to know the power liberated at each instant of time inside an operational tunnel. That procedure could help in taking the correct actions to adapt the tunnel ventilation in order to diminish the effects of the fire and the smoke. This work shows a method to calculate the heat release rate using sensors that can be installed inside an operational road tunnel. Besides, the location of the fire could also be calculated accurately and quickly. To achieve the previous purposes, a stationary database that depends on HRR, its location, and the ventilation speed is calculated with CFD programs; the data are compared with temperatures measured by the sensors located inside the tunnel. The program used to generate the database is the simplified model UPMTUNNEL. The predictions of the model are compared with the results of calculations carried out using the general purpose code FLUENT, and with measurements done in a tunnel with a real fire, produced with a fuel tray.

More information

Item ID: 7303
DC Identifier: http://oa.upm.es/7303/
OAI Identifier: oai:oa.upm.es:7303
DOI: 10.1016/j.tust.2010.05.001
Official URL: http://www.sciencedirect.com/science/article/pii/S0886779810000787
Deposited by: Memoria Investigacion
Deposited on: 09 Jun 2011 09:26
Last Modified: 27 Apr 2016 07:54
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM