Flame spread over the surface of thermal insulation materials in different environments  

作　　者：HUANG XinJie SUN JinHua JI Jie ZHANG Ying WANG QingSong ZHANG Yi 

机构地区：[1]State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China

出　　处：《Chinese Science Bulletin》2011年第15期1617-1622,共6页

基　　金：supported by the National Natural Science Foundation of China (50976110);China Postdoctoral Science Foundation (20090450703)

摘　　要：Experiments were conducted in a plateau area in Lhasa and a plain area in Hefei China to investigate the flame spread characteristics on thermal insulation materials under different environmental conditions (pressure and oxygen concentration).Molded polystyrene foam (EPS) and extruded polystyrene foam (XPS) samples were placed horizontally on a small-scale flame spread experimental bench.Changes in the average length of the pool fire,flame spread speed,average flame height,and length of preheating zone were used to determine the effect of the plateau and plain environments on flame spread characteristics.These parameters were all larger in Hefei than in Lhasa,which indicates the fire hazard in Hefei will be higher than that in Lhasa if insulation materials of the same size are used.Experiments were conducted in a plateau area in Lhasa and a plain area in Hefei China to investigate the flame spread characteristics on thermal insulation materials under different environmental conditions （pressure and oxygen concentration）. Molded polystyrene foam （EPS） and extruded polystyrene foam （XPS） samples were placed horizontally on a small-scale flame spread experimental bench. Changes in the average length of the pool fire, flame spread speed,average flame height, and length of preheating zone were used to determine the effect of the plateau and plain environments on flame spread characteristics. These parameters were all larger in Hefei than in Lhasa, which indicates the fire hazard in Hefei will be higher than that in Lhasa if insulation materials of the same size are used.

关 键 词：火焰蔓延 保温材料 环境 聚苯乙烯泡沫塑料 表面 平均长度 火焰传播速度 平原地区 

分 类 号：TM215[一般工业技术—材料科学与工程]