Effects of Ambient Parameters and Sample Width on Upward Flame Spread over Thermally Thin Solids

2020 ◽  
Author(s):  
Luyao Zhao ◽  
Jun Fang ◽  
Shangqing Tao ◽  
Jingwu Wang ◽  
Yongming Zhang
Keyword(s):  
Flame Spread ◽  
Upward Flame Spread ◽  
Sample Width

Experimental Study on Effect of Ceiling on Upward Flame Spread over Poly(Methyl Methacrylate) Sheets

2016 ◽  
Vol 705 ◽  
pp. 114-118 ◽  
Author(s):  
Fei Peng ◽  
Li Zhong Yang ◽  
Xiao Dong Zhou
Keyword(s):  
Experimental Study ◽  
Heat Release ◽  
Heat Release Rate ◽  
Flame Spread ◽  
Release Rate ◽  
Unit Area ◽  
Sample Length ◽  
Upward Flame Spread ◽  
Series Of Experiments ◽  
Sample Width

A series of experiments was designed to investigate the effects of ceiling on upward flame spread. The result reveals that the ceiling accelerates the burning rate of upward flame under certain situations. And the acceleration is slightly increase with the increasing sample length, but almost keeps the same with different sample width. The heat release rate per unit area nearly keeps the same for the series work with ceiling or the series work without ceiling. But the heat release rate per unit area between the two series is obvious, the heat release rate per unit area with ceiling is much higher than the ones without ceiling.

scholarly journals Influence of U-shaped structure on upward flame spread and heat transfer behaviors of PMMA used in building thermal engineering

2020 ◽  
Vol 22 ◽  
pp. 100794
Author(s):  
Weiguang An ◽  
Xiangwei Yin ◽  
Minglun Cai ◽  
Yanhua Tang ◽  
Qing Li ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Flame Spread ◽  
Thermal Engineering ◽  
Upward Flame Spread

Experimental Study of Upward Flame Spread over Discrete Weathered Wood Chips

2021 ◽  
pp. 1-12
Author(s):  
Biao Zhou ◽  
Kai Wang ◽  
Yanyi Liuchen ◽  
Yuhang Li ◽  
Xukun Sun ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flame Spread ◽  
Wood Chips ◽  
Upward Flame Spread

Effect of Sample Width on Downward Flame Spread over Typical Energy Conservation Material at a High Elevation Area

2014 ◽  
Vol 664 ◽  
pp. 199-203 ◽  
Author(s):  
Wei Guang An ◽  
Lin Jiang ◽  
Jin Hua Sun ◽  
K.M. Liew
Keyword(s):  
Mass Loss ◽  
Flame Spread ◽  
Loss Rate ◽  
Mass Loss Rate ◽  
High Elevation ◽  
Flame Height ◽  
Spread Rate ◽  
Flame Spread Rate ◽  
Sample Width ◽  
Downward Flame Spread

An experimental study on downward flame spread over extruded polystyrene (XPS) foam at a high elevation is presented. The flame shape, flame height, mass loss rate and flame spread rate were measured. The influences of width and high altitude were investigated. The flame fronts are approximately horizontal. Both the intensity of flame pulsation and the average flame height increase with the rise of sample width. The flame spread rate first drops and then rises with an increase in width. The average flame height, mass loss rate and flame spread rate at the higher elevation is smaller than that at a low elevation, which demonstrates that the XPS fire risk at the higher elevation area is lower. The experimental results agree well with the theoretical analysis. This work is vital to the fire safety design of building energy conservation system.

Experimental study of horizontal flame spread over rigid polyurethane foam on a plateau: effects of sample width and ambient pressure

2014 ◽  
Vol 39 (2) ◽  
pp. 127-138 ◽  
Author(s):  
Y. Zhou ◽  
H. H. Xiao ◽  
J. H. Sun ◽  
X. N. Zhang ◽  
W. G. Yan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Polyurethane Foam ◽  
Flame Spread ◽  
Ambient Pressure ◽  
Rigid Polyurethane Foam ◽  
Sample Width

scholarly journals Large scale experimental study on the fire hazard of buildings’ U-shape façade wall geometry

2017 ◽  
Vol 23 (4) ◽  
pp. 455-463 ◽  
Author(s):  
Weigang YAN ◽  
Lin JIANG ◽  
Weiguang AN ◽  
Yang ZHOU ◽  
Jinhua SUN
Keyword(s):  
Theoretical Analysis ◽  
Flame Spread ◽  
Large Scale ◽  
Fire Hazard ◽  
Residential Building ◽  
Flame Height ◽  
Geometrical Factor ◽  
Insulation Material ◽  
Upward Flame Spread ◽  
Wall Geometry

Buildings have U-shape façade designs for certain purposes such as lighting. However, such designs may lead to a higher fire hazard. In this paper, large scale experiments of upward flame spread over XPS insulation material were conducted to investigate the fire hazard of building’s U-shape façade wall geometry. Comparison to previous labora­tory scale experiments were also presented. Theoretical analysis was performed to reveal the mechanism of the U-shape geometry’s influences. It is found that such geometry design would increase the fire hazard of buildings: flame spread rate and flame height increased with U-shape’s geometrical factor. The results agreed with theoretical analysis. It is ex­pected that the buildings’ U-shape façade wall geometry would greatly benefit flame spread for full scale applications and increase the fire hazard. Thus engineers should be careful with such façade wall designs, especially for residential building designs.

Effects of sample width and inclined angle on flame spread across expanded polystyrene surface in plateau and plain environments

2013 ◽  
Vol 28 (1) ◽  
pp. 111-127 ◽  
Author(s):  
Weiguang An ◽  
Xinjie Huang ◽  
Qingsong Wang ◽  
Ying Zhang ◽  
Jinhua Sun ◽  
...  
Keyword(s):  
Flame Spread ◽  
Expanded Polystyrene ◽  
Polystyrene Surface ◽  
Inclined Angle ◽  
Sample Width
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