液化石油气喷射火灾热辐射估算方法研究  

Study on Method for Estimating Thermal Radiation of LPG Jet Fire

作　　者：康青春[1] 孙沛[1] 王淮斌 李玉[1] 

机构地区：[1]中国人民武装警察部队学院灭火救援技术公安部重点实验室

出　　处：《中国安全科学学报》2013年第11期16-21,共6页China Safety Science Journal

基　　金：国家"十二五"科技支撑计划项目(20011BAK03B07)

摘　　要：为减少火灾的热辐射伤害并制定合理的作战、疏散方案,研究液化石油气(LPG)喷射火灾的热辐射分布问题,得出既满足部队实战要求又简单快捷的火灾热辐射计算公式。以火场上便于侦查的参数为出发点,利用试验研究与数值分析相结合的方法,在试验装置设计基础上,分别拟合热辐射通量与火焰宽度、高度和距离之间的关系,通过多元回归分析的方法得到热辐射通量的简化计算公式。试验测试和模型对比结果表明,虽然简化计算公式与实测值及其他计算模型存在一定的偏差,但差值在7%以内,能满足部队实战需求;公式中的变量易通过火场侦查得到,便于部队实际应用。To reduce the thermal radiation damage of fire and make reasonable operation or evacuation plan, the authors studied the thermal radiation distribution of LPG jet fire. The simple and efficient thermal radiation formula was obtained meeting the requirements for combat troops. Based on the parameters to facilitate investigation on fire ground, using experimental study and numerical analysis methods, on the basis of the experimental apparatus design, fitting the thermal radiation flux to flame width and height and distance, through multiple regression analysis method, a simplified formula for calculation of the thermal radiation flux was accomplished. Experiments and a comparison between models show that there is a difference between the results obtained by the formula and the actual one or the results by other models, but the difference is less than 7%, the formula can meet the requirements of troops, and that the variables in the formula can be easily obtained by fire investigation, which can meet the practical requirements of troops.

关 键 词：液化石油气(LPG) 喷射火 热辐射估算 变因素试验 数据拟合 

分 类 号：X937[环境科学与工程—安全科学]