The use of Petri nets and a two-zone model for fire scene reconstruction
Fire scene investigation relies on in situ investigation (observations that take place where the fire occurred)and laboratory analysis. Nowadays the role and place of fire modelling in fire forensic investigation are debated within the forensic community. The main objective of this work is to propose a methodology to consider the stochastic aspect of fire development in a specific case by using fire modelling. Therefore,a stochastic fire safety engineering tool so-called SCHEMA-SI (Stochastic Computation and Hybrid Event Modelling Approach-Securite Incendie)developed at the CSTB (French Scientific and Technical Construction Centre) has been used to reconstruct a fire scene that occurred in 2007 in a senior care facility situated in the Paris suburb(France). In this case study,several fire scenarios were generated with SCHEMA-SI from probabilistic data in order to perform fire scene investigation. Each scenario is composed on one hand by a succession of dated events and on the other hand by physical quantities time-evolution at different locations in the building (heat release rate,temperature, interface height…).The objective of this work was to find the scenarios which allow getting an acceptable agreement between the calculated values and the observations from the real situation in the fire scene.Among the thousands of fire scenarios generated, 20% were compliant with the fire scene observations. The analysis of these compliant scenarios gave a better idea of what might have happened in the care facility. At the end, the contribution of numerical simulation in a fire scene analysis isdiscussed.
Fire investigation Stochastic model Petri nets Two zone model Monte Carlo method
A.Muller F.Demouge M.Jeguirim Ph.Fromy J.-P.Vantelon
Laboratoire Centraldela Pre”fecture de Police,Pole Mesures Physiqueset Sciences de I’Incendie,39bisr Centre Scientifique et Techniquedu B(a)atiment,84 avenue Jean-Jaurès,Champs-sur-Marne,77447 Marne-la Universite” de HauteAlsace,3bisrue Alfred Werner,68093 Mulhouse,France Universite” de Poitiers,UPRCNRS9028,Laboratoirede Combustionetde De”tonique,Poitiers,France
国内会议
南京
英文
1-13
2013-11-01（万方平台首次上网日期，不代表论文的发表时间）