摘要
介绍国内三个大空间温度场预测模型。通过在某高大钢结构厂房内进行大空间小功率油池火实验,得到火焰正上方4.0m和7.5m处的温度变化情况。将实验结果与三个预测模型的预测结果进行对比,结果表明:三个模型都能较好地预测出火源正上方4.0m处温度变化的趋势;只有张国维公式给出了火灾全过程预测;薛素铎公式能够很好地展现增长阶段到稳定阶段的过渡过程;对7.5m处的预测结果偏差较大;三个公式都对最大温度值有较强的依赖性。
Three large space temperature field prediction models in China were introduced.In a tall steel structure workshop,fire experiments of small power oil pool in large space were conducted,getting the temperature variation at 4.0mand 7.5mabove fire source.The experimental data and the calculation results were compared,and the results showed that,3models all can predict the temperature 4.0 mabove the fire source well;only the formula from ZHANG Guo-wei can predict the whole process of fire;formula from XUE Su-duo can show the transient process from developing stage to stable stage well;the prediction of temperature 7.5 mabove the fire source had big error;the three model all rely on maximum temperature value strongly.
作者
于志超
朱国庆
田承飞
YU Zhi-chao ZHU Guo-qing TIAN Cheng-fei(Faculty of Safety Engineering, China University of Mining and Technology, Jiangsu Xuzhou 221116, China Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Jiangsu Xuzhou 221116, China Fire Research Institute, China University of Mining and Technology, Jiangsu Xuzhou 221116, China)
出处
《消防科学与技术》
CAS
北大核心
2016年第10期1372-1375,共4页
Fire Science and Technology
基金
江苏省自然科学基金项目(BK20131117)
关键词
高大空间
火源
温度场
预测模型
large space
fire source
temperature field
prediction model
