中文摘要：

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．

英文摘要：

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.