典型固体可燃物燃烧特性的实验研究  

An Experimental Study on Burning Properties of Typical Combustibles

作　　者：刘江虹[1] 廖光煊[1] 范维澄[1] 陈长坤[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,安徽合肥230026

出　　处：《中国科学技术大学学报》2002年第6期738-742,共5页JUSTC

基　　金：国家重点基础研究发展规划 (2 0 0 1CB4 0 96 0 9)资助项目

摘　　要：选择具有代表性的聚甲醛丙烯酸甲脂和松木两种材料 ,采用基于耗氧原理的燃烧热释放速率测量方法 ,在不同的外加热流密度作用下利用锥型量热计系统对固体可燃物的热释放速率进行测量 ;分析了外加热流密度对固体可燃物热释放速率、燃烧产物中CO2 的浓度和烟气的温度的影响 ;发现固体可燃物的燃烧放热过程与它们本身的结构特性密切相关 。Cone calorimeter tests were conducted on typical combustibles, such as PMMA(polymethyl methacryle)and pine. By means of this single test method, measured properties, such as HRR and CO 2 concentration and smoke temperature are obtained under fire exposure radiation conditions. The results show that combustion state of solids is closely related with their construction and characteristics: the heat release rate curve of pine has two obvious peak values, but the heat release rate PMMA increases stably and behaves like a liquid. Exposure radiation has a great influence on combustion and heat release of solids.

关 键 词：固体可燃物 燃烧特性 实验研究 热释放速率 锥型量热计 外加热流密度 

分 类 号：O643.21[理学—物理化学]