本报告介绍了ASHRAE和NRC联合项目的结果，该项目旨在调查中庭烟雾管理中的浮力烟雾流。这包括对以往关于喷水灭火器喷雾与烟雾层相互作用、喷水灭火的热释放速率以及喷水灭火的烟雾运动的研究的回顾。在安大略省阿尔蒙特附近的NRC燃烧大厅设施中建立了一个大型测试设施。该设施用于调查烟雾从喷洒过的隔间进入大面积开阔区域的情况。使用试验设备进行了四系列全尺寸试验:稳态丙烷燃烧器火灾。稳态丙烷燃烧器采用逆流燃烧。不稳定和稳定丙烷燃烧器火灾的组合。商业火灾测试。本报告总结了这4个系列试验的结果。 这些结果用于确定中庭烟雾管理系统对连接到中庭空间的隔间内的喷水灭火的有效性。

This report presents the results for the joint ASHRAE and NRC project to investigate buoyant smoke flow in atrium smoke management. This includes a review of previous research on the interaction of sprinkler spray with a smoke layer, heat release rate from sprinklered fires and smoke movement for sprinklered fires.A large-scale test facility was set-up in the NRC Burn Hall facilities located near Almonte, Ontario. This facility was used to investigate smoke movement from a sprinklered compartment into a large open area. Four series of full-scale tests were conducted using the test facility:Steady state propane burner fires.Steady state propane burner fires with opposed airflow.Combination of unsteady and steady propane burner fires.Mercantile fire tests.The results of these 4 series of tests are summarized in this report. These results are used to determine the effectiveness of atrium smoke management systems for sprinklered fires in a compartment connected to the atrium space.