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Mine fire behavior under different ventilation conditions: real-scale tests and CFD modeling

By Florencio Fernández-Alaiz, Ana María Castañón García, Fernando Gómez-Fernández and Marc Bascompta Massanes

Abstract

Fires in underground spaces are especially relevant due to their potential mortality. However, there is not much research in real-scale spaces done so far. In this study, several fire scenarios were analyzed in an underground drift, taking into account the main environmental variables: airflow, temperature, oxygen, and pollutants. The behavior before and after the fire load was determined, as well as the evolution of the fire over time throughout the drift and its cross-section, finding important trends of the fire based on the airflow–fuel load ratio. Furthermore, the five most representative scenarios were modeled using the fire dynamics simulator (FDS). Results obtained in the simulations, with the adjusted parameters, display a good correlation between simulated and experimental values, being able to extrapolate these values to know the performance of potential fires in other underground spaces or mines. The outcomes could also be a very useful tool to study the effectiveness of possible emergency measures or the potential impact of a fire in this type of environments.This research was funded by the Junta de Castilla y León (Spain), project LE167G18, as well as the European Union through the programs ECSC and RFCS, grant numbers 7220-PR/061 and RFCR-CT-2010-00005.Peer Reviewe

Topics: Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines, Mine fires, Mine ventilation, Fires -- Computer simulation, Mine safety, Underground fire, Safety hazard, Fire behavior, Mine ventilation, Fire dynamics simulator (FDS), Incendis en les mines, Mines -- Ventilació, Incendis -- Simulació per ordinador, Mines -- Mesures de seguretat
Publisher: 'MDPI AG'
Year: 2020
DOI identifier: 10.3390/app10103380
OAI identifier: oai:upcommons.upc.edu:2117/190267
Provided by: UPCommons
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