Journal ArticleDOI
A study on the maximum temperature of ceiling jet induced by rectangular-source fires in a tunnel using ceiling smoke extraction
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TLDR
In this paper, the authors analyzed the physics characteristics of the flame plume temperature, induced by a ceiling jet and their coupling with an extraction flow, using a ceiling smoke extraction. And the results indicated that the new global model can effectively predict experimental data.About:
This article is published in International Journal of Thermal Sciences.The article was published on 2018-05-01. It has received 147 citations till now. The article focuses on the topics: Ceiling (cloud).read more
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Numerical study on overall smoke control using naturally ventilated shafts during fires in a road tunnel
TL;DR: In this paper, the authors studied the overall smoke control of natural ventilation systems with vertical shafts during fires in a common road tunnel by numerical modeling and found that the total smoke spread length on both sides of fire source is closely independent of the heat release rate and longitudinal fire locations.
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Experimental study on maximum smoke temperature beneath the ceiling induced by carriage fire in a tunnel with ceiling smoke extraction
TL;DR: In this article, a series of small scale experiments are conducted in a model tunnel, consisting of a carriage (with an opening) in a tunnel, and the maximum temperature is measured, and shows different development trends with increasing ceiling smoke extraction rate.
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Experimental and numerical study on fire-induced smoke temperature in connected area of metro tunnel under natural ventilation
TL;DR: Wang et al. as mentioned in this paper modified the current model for predicting the fire-induced smoke temperature considering different sloped conditions in main and connected tunnels, and extended numerical simulations were performed to clarify the common inclined effect of both the main and the connected tunnel on the smoke temperature under natural ventilation.
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Characterization of ceiling smoke temperature profile and maximum temperature rise induced by double fires in a natural ventilation tunnel
TL;DR: In this article, the authors studied the ceiling smoke temperature distribution characteristics of double fire sources in a natural ventilation tunnel and developed a model of K considering the burner separation distance and dimensionless heat release rate.
Journal ArticleDOI
Effects of ambient pressure on smoke movement and temperature distribution in inclined tunnel fires
TL;DR: In this paper, a series of simulations with regard to inclined road tunnel were conducted to investigate the effect of ambient pressure on smoke movement and temperature distribution, and a correlation predicting the maximum smoke excess temperature beneath the ceiling was proposed.
References
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Journal ArticleDOI
Describing the Uncertainties in Experimental Results
TL;DR: The material presented in this paper covers the method of describing the uncertainties in an engineering experiment and the necessary background material, as well as a technique for numerically executing uncertainty analyses when computerized data interpretation is involved.
Book
Fundamentals of Fire Phenomena
TL;DR: In this article, the authors present an overview of the history of fire and its application in the field of fire safety, including a discussion of the role of mass and energy conservation in chemical reactions.
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Scaling applications in fire research
TL;DR: The principles for scaling fire phenomena from the dimensionless groups derived from the governing differential equations are examined in this paper, and a review of the literature shows examples of where correlations have been successfully developed for a wide range of fire phenomena in terms of the significant dimensionless group.
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Calculation of Response Time of Ceiling Mounted Fire Detectors
TL;DR: An understanding of the behavior of the fire plume and fire-induced flow near the ceiling of a room is necessary if one is to optimize detector response time and placement as discussed by the authors, which is the case in this paper.
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The maximum temperature of buoyancy-driven smoke flow beneath the ceiling in tunnel fires
TL;DR: The investigation presented here considers only the cases when the continuous flame region is lower than the ceiling height and the maximum excess gas temperature varies as the −5/3 power of the vertical distance between the fire source bottom and tunnel ceiling.