木垛火热释放速率的试验研究  

Experimental study of heat release rate of wood crib

作　　者：黄晓露[1] 谢元一[1] 荣建忠[1] 杨晓菡[1] 

机构地区：[1]公安部四川消防研究所,四川成都610036

出　　处：《消防科学与技术》2014年第5期484-486,共3页Fire Science and Technology

基　　金：公安部应用创新计划项目(2012YYCXSCXF159);国家"十二五"科技支撑计划项目(2011BAK03B0102)

摘　　要：基于耗氧原理,开展了不同尺寸木垛的热释放速率测定试验,得到不同尺寸木垛的热释放速率曲线。进一步分析得到,研究范围内木垛燃烧热释放速率峰值与外表面面积之间为不含常数项的二次多项式关系,以及木垛单位外表面面积的热释放速率强度与外表面面积间为线性正比例关系。并得到了特定热释放速率强度木垛尺寸的确定方法,方便了试验人员设计及使用木垛火火源。Heat release rate of wood cribs with different sizes were measured by large-scale calorimeter. A serial of beat release rate curves of wood cribs with different size were obtained. A relation curve of heat release rate peak value and wood crib surface area, which is quadratic polynomial without constant term, was obtained based on further analyses. A linear equation about the heat release rate peak value per unit wood crib surface area and wood crib surface area was also obtained. According to the relation curves mentioned, wood crib as one kind of fuel can be conveniently designed and applied by fire researchers.

关 键 词：木垛火 大型量热计 热释放速率 

分 类 号：X924.4[环境科学与工程—安全科学] TK121[动力工程及工程热物理—工程热物理]