基于不规则顶棚假设的顶部开口舱室烟气填充时间预测模型  

A model for predicting smoke filling time in a compartment with ceiling vents based on the assumption of an irregular ceiling

作　　者：李强[1,2] 陆守香[1] 张佳庆[1] 陈兵[3] 黎昌海[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,安徽合肥230027 [2]中国人民武装警察部队学院,河北廊坊065000 [3]中国安全生产科学研究院,北京100000

出　　处：《中国科学技术大学学报》2013年第5期402-409,共8页JUSTC

基　　金：国家自然科学基金(50976109);灭火救援技术公安部重点实验室开放课题(KF2012005);高等学校博士学科点专项科研基金(20123402110048)资助

摘　　要：基于不规则顶棚假设,建立了一种适用于顶部开口舱室火灾烟气填充时间的预测模型.通过与3.0m(长)×3.0m(宽)×1.95m(高)顶部开口舱室油池火实验进行对比,考察了火源直径为0.10,0.14,0.20和0.30m,顶部开口面积为0.01,0.04,0.09,0.14,0.25和0.32m2情况下模型预测结果与实验测量结果(测温法和消光法)间的相似关系.结果表明,模型预测结果与实验测量结果表现出良好的一致性.Based on the assumption of an irregular ceiling, a model was established for predicting smoke filling time in a compartment with ceiling vents. 24 experiments were conducted in a compartment with an interior dimension of 3.0 m（L）X3.0 re（W）X1.95 re（H）. Four pool fires with diameters of 0.10, 0. 14, 0. 20 and 0. 30 m, six ceiling vents with areas of 0. 01, 0. 04, 0. 09, 0. 14, 0. 25, and 0. 32 m2 were used in the experiments. Two methods for measuring smoke filling time with temperature and light extinction were used. A comparison of the model prediction results with those of the experiments shows a goodagreement between them.

关 键 词：舱室火灾 顶部开口 烟气填充时间 

分 类 号：X932[环境科学与工程—安全科学]