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

scholarly journals Influences of Sub-Atmospheric Pressure on Upward Flame Spread over Flexible Polyurethane Foam Board with Multiple Inclinations

2020 ◽  
Vol 10 (20) ◽  
pp. 7117
Author(s):  
Ran Tu ◽  
Xin Ma ◽  
Yi Zeng ◽  
Xuejin Zhou ◽  
Qixing Zhang
Keyword(s):  
Heat Transfer ◽  
Flame Spread ◽  
Burning Surface ◽  
Flame Length ◽  
Coupling Effects ◽  
Fire Dynamics ◽  
Upward Flame Spread ◽  
Inclination Angles ◽  
The Individual ◽  
Flexible Polyurethane

Fire propagation and burning characteristics of upward flame spread over flexible polyurethane (FPU) foam board were investigated under coupling effects of pressure and orientation. As a further comparative research of our previous work, three pressures (70, 85 and 100 kPa) and four fuel surface inclination angles (0°, 30°, 60°, 90°) were applied, respectively, as before, to study the variation of typical parameters including flame spread rate (FSR), burning rate, heat transfer components, flame length, etc. First, a phenomenological interpretation was taken to show the special spreading process with melting flow combustion and flash burning observed. Second, an overall theoretical analysis was proposed to reveal the individual or coupling effects of pressure and inclined burning surface on spreading behavior. A semi-quantitative correlation was developed and formulated to show the tendency of FSR as a function of pressure, inclination and other burning parameters, which was validated by data in paper. Meanwhile, comparison of detailed differences between upward and downward spread was conducted to give a full insight on FPU fire development. At last, comprehensive discussions of coupling effects on variation of spreading characteristics and heat transfer mechanisms were performed based on fire dynamics.

scholarly journals Upward Flame Spread: Heat Transfer To The Unburned Surface

2003 ◽  
Vol 7 ◽  
pp. 117-127 ◽  
Author(s):  
T. Kuang-chung ◽  
J. Turnbull ◽  
G. Will ◽  
D. Drysdale
Keyword(s):  
Heat Transfer ◽  
Flame Spread ◽  
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
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