影响木材火焰传播速度特征量的实验研究  

Measurement of factors influencing the flame spreading of wood

作　　者：董惠[1] 邹高万[1] 郜冶[1] 

机构地区：[1]哈尔滨工程大学建筑工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2005年第7期50-52,共3页Applied Science and Technology

基　　金：哈尔滨工程大学基础研究基金资助项目(HEUF040116).

摘　　要：木材着火时火焰的传播规律将为木材在火灾场景中的行为提供重要参考,分析了木材燃烧的机理和影响木材燃烧时火焰传播速度的特征量,借助于实验的方法,研究了空间方位角和几何尺寸等特征量对火焰传播速度的影响.结果表明,方位角越小,不同尺寸木条火焰传播速度差别越大;火焰传播速度随方位角的增大而增大;木条宽度越大,火焰传播速度越慢.The law of flame spreading speed of wood can offer the significant reference for the behavior of wood in fire accident. Mechanism of wood burning and characteristic parameters influencing flame spreading speed in wood were studied in the paper. The orientation angle and geometric size influencing flame spreading were investigated in experiments. The results show that the smaller the angle of orientation the bigger the differences in speed of flame spreading in wood with different sizes.The speed of flame spreading in wood increases when orientation angle increases.The speed of flame spreading decreases as width of the wood strips increases.

关 键 词：木材 火焰传播速度 特征量 方位角 几何尺寸 

分 类 号：S781[农业科学—木材科学与技术]