Using thermal analysis experiment and Fire Dynamics Simulator (FDS) to reconstruct an arson fire scene

Chi, Jen‐Hao

doi:10.1007/s10973-012-2764-x

Cited by 12 publications

(4 citation statements)

References 11 publications

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“…For example, using thermal analysis experiment and FDS program, Jen-Hao reconstructed an arson fire in hotel and revealed the propagation process in detail [8]. Feng and Liu investigated the burning characteristics of electric cables used in the nuclear power plant by way of 3-D transient FDS code [9].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of wood crib fire behavior in a confined space using cone calorimeter data

Zhang

Zhao

et al. 2014

J Therm Anal Calorim

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The simulation of wood crib fire behavior in a confined space with fire dynamics simulator (FDS) was presented in this paper, including the heat release rate, flame temperature, central temperature of crib, and oxygen concentration. In the simulation, the cone calorimeter data, such as ignition temperature and heat release rate of wood material measured from cone calorimeter test, were inputted into FDS. Simulations were compared with the results of practical wood crib burning experiments. The simulation results shown that the inputted heat release rate data from cone calorimeter tests obtained with different external heat flux (35-50 kW m -2 ) had little influence on the simulation results. The heat release rates were in good agreement with the experimental measurement with the biggest difference of 13.9 % in peak value. FDS underestimated the flame temperatures at lower positions about 10 % during the steady state, and the difference between simulation and experiment in flame temperature decreased as the height of measurement position increased. Although there was a big difference in decay phrase, the temperatures in the middle of wood crib were successfully simulated for the overlapped curves during (I) Fast growth stage and (II) Moderate growth stage of burning. The oxygen concentrations were overestimated because the oxygen concentrations measured at the height of 1.8 m in the space were higher than the experimental data with an average difference of 15.5 %. On the whole, an effective way was provided with reasonable results to study the burning characteristics of wood crib fire with numerical simulation.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation of wood crib fire behavior in a confined space using cone calorimeter data

Zhang

Zhao

et al. 2014

J Therm Anal Calorim

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“…The FDS (version 5.5.3) used in this study to obtain ASET was a computational fluid dynamics (CFD) software that is commonly and widely employed by researchers for predicting fire phenomena. Furthermore, the field model of FDS analyzes turbulence by utilizing large eddy simulation (LES) and numerically assesses the impact of fire based on the Navier-Stokes equations [45][46][47][48][49].…”

Section: Classification Polyurethane Foam Finishing Materials 1 Finis...mentioning

confidence: 99%

A Study on the Quantitative Fire Performance Evaluation Method of Building Finishing Materials with a Focus on Medical Facilities

et al. 2023

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Buildings in modern society tend to gradually expand in size due to technological development and overcrowding, which increases the risk of fire. Therefore, continuous efforts are being made to ensure the evacuation safety of occupants by installing firefighting facilities and using flame retardant building finishing materials. This study aims to present a fire performance evaluation plan for building finishing materials using simulations and identify risks that arise from not using flame retardant building finishing materials in medical facilities with vulnerable occupants. A control group for fire performance evaluation was selected using polyurethane foam, while two types of cellulose-based building finishing materials with different flame retardants were chosen for analysis. The cellulose-based finishing materials included expanded graphite, magnesium hydroxide, montmorillonite, and ammonium polyphosphate. Fire performance was evaluated using FDS and path detector simulations based on NES 713 and ISO 5660-1. The results of the study showed that there was a difference of three people in the prediction of the number of deaths depending on the scope of analysis, and it was confirmed that the toxic gas detected was different depending on the added flame retardant. Additionally, construction finishing materials with flame retardant performance increased ASET by at least 130 s compared to polyurethane foam, and the evacuation safety exceeded 1, confirming the effectiveness of securing evacuation stability for occupants.

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“…His study used PU foam as the experimental material and utilized thermal analysis equipment to obtain heat reaction data as input parameters for the FDS program. The results were compared and verified with the on-site fire spread and smoke debris to obtain heating temperatures which were close to the actual conditions, as well as corresponding material parameters for the reconstruction of the arson attack [ 16 ].…”

Section: Introductionmentioning

confidence: 96%

Analysis of the Influence of Construction Insulation Systems on Public Safety in China

Zhang

Zhu

Zhao

2016

IJERPH

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With the Government of China’s proposed Energy Efficiency Regulations (GB40411-2007), the implementation of external insulation systems will be mandatory in China. The frequent external insulation system fires cause huge numbers of casualties and extensive property damage and have rapidly become a new hot issue in construction evacuation safety in China. This study attempts to reconstruct an actual fire scene and propose a quantitative risk assessment method for upward insulation system fires using thermal analysis tests and large eddy simulations (using the Fire Dynamics Simulator (FDS) software). Firstly, the pyrolysis and combustion characteristics of Extruded polystyrene board (XPS panel), such as ignition temperature, combustion heat, limiting oxygen index, thermogravimetric analysis and thermal radiation analysis were studied experimentally. Based on these experimental data, large eddy simulation was then applied to reconstruct insulation system fires. The results show that upward insulation system fires could be accurately reconstructed by using thermal analysis test and large eddy simulation. The spread of insulation material system fires in the vertical direction is faster than that in the horizontal direction. Moreover, we also find that there is a possibility of flashover in enclosures caused by insulation system fires as the smoke temperature exceeds 600 °C. The simulation methods and experimental results obtained in this paper could provide valuable references for fire evacuation, hazard assessment and fire resistant construction design studies.

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Using thermal analysis experiment and Fire Dynamics Simulator (FDS) to reconstruct an arson fire scene

Cited by 12 publications

References 11 publications

Numerical simulation of wood crib fire behavior in a confined space using cone calorimeter data

Numerical simulation of wood crib fire behavior in a confined space using cone calorimeter data

A Study on the Quantitative Fire Performance Evaluation Method of Building Finishing Materials with a Focus on Medical Facilities

Analysis of the Influence of Construction Insulation Systems on Public Safety in China

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