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 ◽  
...  
2014 ◽  
Vol 664 ◽  
pp. 199-203 ◽  
Author(s):  
Wei Guang An ◽  
Lin Jiang ◽  
Jin Hua Sun ◽  
K.M. Liew

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.


2014 ◽  
Vol 39 (2) ◽  
pp. 127-138 ◽  
Author(s):  
Y. Zhou ◽  
H. H. Xiao ◽  
J. H. Sun ◽  
X. N. Zhang ◽  
W. G. Yan ◽  
...  

2013 ◽  
Vol 32 (3) ◽  
pp. 193-209 ◽  
Author(s):  
Lin Jiang ◽  
Huahua Xiao ◽  
Yang Zhou ◽  
Weiguang An ◽  
Weigang Yan ◽  
...  

2016 ◽  
Vol 705 ◽  
pp. 114-118 ◽  
Author(s):  
Fei Peng ◽  
Li Zhong Yang ◽  
Xiao Dong Zhou

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.


2013 ◽  
Vol 401-403 ◽  
pp. 767-770
Author(s):  
Gui Hong Wu ◽  
Yi Qiang Wu ◽  
Yun Chu Hu ◽  
Xiao Dan Zhu

To study the effect of sample width on flame spread characteristics, a series of laboratory-scale experiments were conducted employing eucalyptus wood with width from 3 to 7 cm. Flame dimension, flame spread rate and mass loss rate were obtained. The relationship between these flame spread characteristics and sample width was explored. Both the dimensionless average flame height and depth vary as the-n power of sample width. With the increase of sample width, both the flame spread rate and mass loss rate first decrease and then rise. The minimum values appear when sample width measures 6 cm.


Author(s):  
Shuhei TAKAHASHI ◽  
Yasunori SEKI ◽  
Tadayoshi IHARA ◽  
Kazunori WAKAI ◽  
Subrata BHATATCHARJEE

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