摘要
介绍木垛暴露面积计算公式,计算了试验条件中木垛的暴露面积;利用ISO 9705标准试验房间火试验测试了木垛的热释放速率峰值、达到热释放速率峰值的时间和达到峰值前的热释放速率平均值;用线性拟合的方法分析木垛暴露面积与热释放速率值之间的关系,得到了拟合系数及拟合相关系数;利用线性拟合公式预测了在已知木垛暴露面积的条件下,木垛的热释放速率值,并与试验值进行了比较分析。
The calculating formula of the exposed area of wood crib is introduced, and the exposed area of wood crib used in the experiment afterwards is calculated. The ISO 9705 standard experimental room fire test is performed to test the wood crib＇s peak/average heat release rate and the time reaching the peak value. The method of linear fitting is used to analyze the relationship between the exposed areas of wood crib and its heat release rate, and the fitting constant and correlation coefficient is obtained. The formula is used to predict the heat release rate based on the exposed area, and the result is compared to the test value.
出处
《消防科学与技术》
CAS
北大核心
2010年第1期13-15,共3页
Fire Science and Technology
关键词
木垛火
暴露面积
热释放速率
线性拟合
wood crib fires
exposed area
heat release rate
linear fitting
