固体标准燃烧物热释放速率的无量纲化研究  

Non-dimensional research on heat release rate of standard solid commodity

作　　者：张莹[1] 刘欣[2] 李毅[2] 田立伟[2] 于东兴[2] 

机构地区：[1]北京市消防总队,北京100035 [2]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》2014年第9期983-986,共4页Fire Science and Technology

基　　金：国家"十二五"科技支撑计划项目(2011BAK03B04);质检公益性行业科研专项标准化项目(201110253)

摘　　要：为解决复杂结构固体可燃物燃烧过程受环境影响大、热释放速率试验数据可重复性差的问题,借鉴自由射流速度剖面自相似性研究方法,采用无量纲方法对塑料杯组合体标准燃烧物多组重复性试验结果进行定量分析,最大程度减少环境因素对试验数据的影响,得出该标准燃烧物无量纲热释放速率的特征曲线。拟合结果表明,该特征曲线增长段符合Gauss分布,下降段符合指数分布。In order to increase the repeatability of measurement result of solid combustibles＇ heat release rate,which can be easily affected by environmental factors,non-dimensional-normalized method has been adopted to carry out quantitative research on the experimental results of plastic assembly standard commodities.According to the research this method can minimize environmental effects on the test data,and the non-dimensional characteristic curve of heat release rate of this standard commodity has been achieved.Fitting result of this characteristic curve shows that growth curve has Gauss distribution and descent curve has exponential distribution.

关 键 词：标准燃烧物 热释放速率 无量纲化 无量纲特征曲线 

分 类 号：X932[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]