巷道火灾火焰长度影响因素正交实验  

Orthogonal experiment on influence factors of flame length in roadway

作　　者：褚燕燕[1] 蒋仲安[1] 

机构地区：[1]北京科技大学、土木与环境工程学院金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《辽宁工程技术大学学报（自然科学版）》2009年第6期894-897,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：北京市教育委员会共建项目建设计划基金资助项目(XK100080432)

摘　　要：为了得出火焰长度与火源热释放率、火源直径、可燃物扩散率之间的关系,在单因素实验的基础上,采用正交实验的方法研究了火焰长度主要影响因素与影响规律。结果表明:火灾过程中,火焰长度受火源热释放率、火源直径、风速以及局部阻力系数影响,并且火源热释放率的影响最大,火源直径的影响次之,风速和局部阻力系数的影响很小。该成果对巷道火灾的预防和控制具有指导意义。Theoretical study indicates that flame length is correlated to heat release rate,fire source diameter,combustible matter diffusivity,etc.An experiment is conducted and recorded using a video camera.On the basis of single factor experiment,the main influence factors and influence characteristics of flame length are investigated using orthogonal experiment.The experimental results show that flame length is affected by heat release rate,fire source diameter,air flow velocity and local resistance coefficient.Heat release rate is ranked as most influential factor,fire source diameter is less influential,and air flow velocity and local resistance coefficient are even less.

关 键 词：巷道火灾 火焰长度 影响因素 正交实验 

分 类 号：TD752[矿业工程—矿井通风与安全]