A multi-layer zone model including flame spread over linings for simulation of room-corner fire behavior in timber-lined rooms

Nishino, Taneo; Kagiya, Koji

doi:10.1016/j.firesaf.2019.102906

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Meanwhile, thermal radiation began to rise also at G2 and G3; however, the amount of thermal radiation at G2 was twice as high as that at G3. These results are consistent with those of Nishino et al [47]; thermal radiation decreased as the distance between the monitoring point and the heat center increased. At G4 and G5, thermal radiation started to increase at 12 min and reached its maximum (9.53 kW m −2 and 15.29 kW m −2 , respectively) at 14 min.…”

Section: Effect Of Distancesupporting

confidence: 93%

Characteristics and Mechanism of Fire Spread between Full-Scale Wooden Houses from Internal Fires

et al. 2022

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In ancient villages, the spread of uninterrupted fires caused great damage to clustered wooden houses. Thus, the spread of fire among wooden houses should be systematically studied to explore its characteristics. Statistical analysis is a feasible way to study the characteristics and underlying mechanisms of fire in full-scale wooden houses. In this study, 4 full-scale wooden buildings were built in an ethnic village in Guizhou Province, and the fire spread test was conducted by igniting a 0.63-MW power wood crib. To investigate the fire spread, the visual characteristics were observed, and the temperatures and heat radiation at special locations were monitored with thermocouples and radiation flowmeters, respectively. The effect of relative slope, heat radiation, and wind direction on fire spread characteristics was established by mathematical statistics, and the measured temperatures were used to verify the statistics’ regularity. The results showed that in wooden houses, fire spread was mainly influenced by the slope, the distance between houses, and wind direction. When the inner wall of a wooden house is protected by a fireproof coating, the thermal radiation spread and fire spread are both slower. The slope and distance had the same influence weight (0.41) on fire spread; however, since they affect the process in different ways, they should be analyzed separately for fire risk evaluation. The findings of this study provide a theoretical foundation for understanding the fire spread process in wooden buildings.

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Section: Effect Of Distancesupporting

confidence: 93%

Characteristics and Mechanism of Fire Spread between Full-Scale Wooden Houses from Internal Fires

et al. 2022

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“…Meanwhile, several studies have focused on timber fires in closed rooms. Nishino and Kagiya [ 24 ] studied the pre-flashover fire behavior in a room with combustible timber linings to predict the gas temperature using the wall-and-ceiling flame-spread model. Hadden [ 25 ] conducted a series of compartment fire experiments to evaluate the impact of combustible cross-laminated timber linings on the resulting fires.…”

Section: Introductionmentioning

confidence: 99%

Fire behaviors along timber linings affixed to tunnel walls in mines

et al. 2021

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Timber linings are applied as primary supports in the tunnel fault and fracture zones of mines. These linings are essential to prevent broken rock from falling during the occurrence of exogenous fires. In this study, experiments and numerical simulations were carried out using a fire dynamics simulator to investigate the flame-spread rate, flame characteristics, smoke movement, and spread process of timber-lining fires under different wind speeds of 0, 0.25, 0.5, and 0.75 m/s. It was found that cross-section flame spreading follows the three-stage sidewall-ceiling-sidewall pattern. Moreover, the average flame-spread rate increases along the vertical flame-spreading direction and decreases when the flame reaches the timber-lining corners. Moreover, the flame lengths underneath the timber-lining ceiling in the x-direction are longer than those in the y-direction. As the wind speed increases, the normalized flame lengths R(f) in the two directions decrease, and the maximum temperature underneath the ceiling decreases. In addition, the maximum temperature in the three tunnel sections of interest is first recorded in the tunnel cross-section in the initial fire stage. Higher wind speeds correspond to farther distances of the maximum-temperature points of the three timber-lining sections from the fire source.

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Large eddy simulation of room fire spread using a medium scale compartment made of medium density fibreboard (MDF) panels

Baolati

Zou

et al. 2021

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A multi-layer zone model including flame spread over linings for simulation of room-corner fire behavior in timber-lined rooms

Cited by 4 publications

References 17 publications

Characteristics and Mechanism of Fire Spread between Full-Scale Wooden Houses from Internal Fires

Characteristics and Mechanism of Fire Spread between Full-Scale Wooden Houses from Internal Fires

Fire behaviors along timber linings affixed to tunnel walls in mines

Large eddy simulation of room fire spread using a medium scale compartment made of medium density fibreboard (MDF) panels

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