【作者】 黄新杰； 纪杰； 张英； 张毅； 孙金华；

【Author】 Huang Xinjie,Ji Jie,Zhang Ying,Zhang Yi and Sun Jinhua (State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230026,China)

【机构】 中国科学技术大学火灾科学国家重点实验室；

【摘要】 为了揭示保温材料EPS在不同厚度以及不同压力和氧气浓度等条件下火蔓延特性规律,分别在高原地区的拉萨和平原地区的合肥对其进行了火蔓延实验。实验是在小尺寸火蔓延实验台中进行的。通过分析在水平放置时,不同厚度保温材料在两地火蔓延过程中火蔓延速度、平均池火长度、平均最大火焰高度等特性参数的变化规律,定量地揭示了高原和平原环境对不同厚度保温材料EPS火蔓延特性参数的影响。结果表明,保温材料EPS火蔓延速度、平均池火长度、平均最大火焰高度在拉萨和合肥环境条件下,均随着保温材料厚度的增加而增加。同种厚度EPS在两地火蔓延过程中,火蔓延速度、平均池火长度、平均最大火焰高度在合肥地区都高于拉萨地区的特点。更多还原

【Abstract】 In order to investigate flame spread characteristics of different thickness of insulation material EPS under different environmental conditions(pressure and oxygen concentration),Experiments were conducted in a plateau area in Lhasa and a plain area in Hefei.Experiment was carried out in a small-scale flame spread experimental bench.The different thickness of EPS was placed horizontally.Changes in the flame spread speed, average length of the pool fire and average maximum flame height were used to determine the effect of the plateau and plain environments on flame spread characteristics.The results showed that these parameters increased with the EPS thickness in Lhasa and Hefei respectively.The flame spread speed,average length of the pool fire and average maximum flame height were all larger in Hefei than that of the same thickness of EPS in Lhasa.更多还原