分别在拉萨高原地区和合肥平原地区开展了一系列保温材料PS(聚苯乙烯)火蔓延对比实验研究,通过对火蔓延过程中一些重要特性参数(火蔓延速度、表面火焰区和池火区火焰高度等)的测量,分析了高原地区和平原地区保温材料PS的火灾危害特性.结果表明,对于同种宽度的EPS或XPS,在拉萨的火蔓延速度均小于在合肥情况下；而当保温材料的宽度为10cm左右时,在两地火蔓延速度均出现了最小值,这主要为空气卷吸程度与热量损失共同作用的结果.研究同样表明,对于EPS和XPS,在宽度比较小的情况下,无论在拉萨还是在合肥,表面火焰区的火焰高度呈现出略大于池火区火焰高度的特点；随着宽度的增加,池火区的火焰高度逐渐大于表面火焰区的火焰高度,并且具有逐渐增高的特性.
参考文献
| [1] | Xia Zhang;YongYu .Experimental studies on the three-dimensional effects of opposed-flow flame spread over thin solid materials[J].Combustion and Flame,2011(6):1193-1200. |
| [2] | Zhang Ying;Ji Jie;Huang Xinjie et al.Effects of sample width on flame spread over horizontal charring solid surfaces on a plateau[J].Chinese Science Bulletin,2011,56(09):919-924. |
| [3] | Takahashi S;Seki Y;Ihara T.Effect of sample width on flame spread rate over a thin material in microgravity[J].Transactions of the Japan Society for Aeronautical and Space Sciences Space Technology Japan,2009(07):61-66. |
| [4] | Santoni F;Santoni P A;Balbi J H .Fire front width effects on fire spread across a laboratory scale sloping fuel bed[J].Combustion Science and Technology,2001,166(01):67-90. |
| [5] | 纪杰,李杰,孙金华,张英,黄新杰.不同宽度和角度下木材表面火蔓延特性的实验研究[J].工程热物理学报,2010(02):351-354. |
| [6] | Honda L K;Ronney P D.Mechanisms of concurrent-flow flame spread over solid fuel beds[J].Proceedings of the Combustion Institute,2000(28):2793-2801. |
| [7] | Rangwala A S;Buckley S G;Torero J L.Upward flame spread on a vertically oriented fuel surface:The effect of finite width[J].Proceedings of the Combustion Institute,2007(31):2607-2615. |
| [8] | Kuang-Chung Tsai .Width effect on upward flame spread[J].Fire safety journal: An international journal devoted to research on fire safety science and engineering,2009(7):962-967. |
| [9] | Y. Pizzo;J.L. Consalvi;P. Querre;M. Coutin;B. Porterie .Width effects on the early stage of upward flame spread over PMMA slabs: Experimental observations[J].Fire safety journal: An international journal devoted to research on fire safety science and engineering,2009(3):407-414. |
| [10] | Mell W E;Kashiwagi T .Effects of finite sample width on transition and flame spread in microgravity[J].Proceedings of the Combustion Institute,2000,28(02):2785-2792. |
| [11] | 许春明,张瑞芳,谢启源,李立明,黄冬梅,张和平.试样宽度对EPDM卷材竖直火蔓延的影响[J].安全与环境学报,2010(06):150-154. |
| [12] | Ying Zhang;Xinjie Huang;Qingsong Wang;Jie Ji;Jinhua Sun;Yi Yin .Experimental study on the characteristics of horizontal flame spread over XPS surface on plateau[J].Journal of hazardous materials,2011(1/2):34-39. |
| [13] | Huang Xinjie;Sun Jinhua;Ji Jie et al.Flame spread over the surface of thermal insulation materials in different environments[J].Chinese Science Bulletin,2011,56(15):1617-1622. |
| [14] | G.T. Linteris;I.P. Rafferty .Flame size, heat release, and smoke points in materials flammability[J].Fire safety journal: An international journal devoted to research on fire safety science and engineering,2008(6):442-450. |
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