Izvorni znanstveni članak
PROBABILITY OF FIRE BRIGADE SUPPRESSION SUCCESS IN AN UNDERGROUND CAR PARK FIRE
Aleš Jug
; Faculty of Chemistry and Chemical Technology, Ljubljana, Slovenija
Stojan Petelin
; Faculty of Maritime Studies and Transportation, Portorož, Slovnenija
Peter Bukovec
; Faculty of Chemistry and Chemical Technology, Ljubljana, Slovenija
Sažetak
Underground car park fires are among the riskiest firefighting operations. The main reasons for high risks are underground location, large spaces, possible high fire load, lack of installed fire protection systems, etc. When accounting for an underground car park fire scenario we must know the fire load, i.e. car characteristics, number of cars in underground car park, underground car park design features and possible ignition sources. Based on this framework we can predict the fire development. Additional help can be provided by using deterministic and probabilistic methods. In general, fire spread will be highly dependable on the initial fuel – the first vehicle, which was ignited and the spread of fire to adjacent vehicles. The success of fire brigade intervention depends on fire development stage at the time of its arrival at the fire scene.
In this paper heat fluxes during car fires were analyzed. Experimental data were recalculated by computational fluid dynamics code (CFD) where some significant consistency was found. In addition to this, real underground car park fire (the fire that was used as an example happened in Ljubljana in 2007) and fire brigade response times were analyzed by probabilistic method. Car burning properties and realistic fire data were compared to probabilistic values. The expected performance of these features has often been predicted using rules-of thumb or expert judgment. These approaches often lack the convincing technical bases that exist when addressing fire safety measures and fire brigade responses. This paper presents science-based approaches to analyze fire brigade response and fire spread in underground car parks.
Ključne riječi
fire; underground car parks; computational fluid dynamics; probabilistic methods
Hrčak ID:
119586
URI
Datum izdavanja:
28.3.2014.
Posjeta: 1.628 *