Fire safety in atria, tunnels and subway stations

提出的研究项目涉及隧道和大型空间（如地铁站和中庭）的消防安全。这项研究的目的是提高这些地区主动消防系统的有效性，它结合了实验和计算机建模。实验工作将在卡尔顿大学新建的全尺寸火灾研究设施中进行。这些设施毗邻NRC的全尺寸消防实验室，包括一条隧道和一个10层高的中庭，两者都由大容量通风系统提供服务。拟议的工作分为四个不同的领域：在第一个领域，研究重点是开发实验测量隧道和中庭发生的大火的热释放率的程序；第二个领域涉及中庭烟雾管理系统和补充空气速度对其有效性的影响；第三个区域将调查隧道的火灾探测系统；第四部分将研究隧道通风与抑制系统之间的相互作用。在所有拟议的研究领域中，将使用计算流体动力学模型和实验进行计算机建模。为了验证模型，将对实验数据和模型预测进行比较。此外，这些模型将用于开发这些系统设计的相关性和指导方针。

The proposed research program deals with fire safety in tunnels and large spaces such as subway stations and atria. The research, which aims at improving the effectiveness of active fire protection systems in these areas, combines both experiments and computer modelling. The experimental work will be performed in the newly constructed full-scale fire research facilities of Carleton University. These facilities, which are adjacent to NRC's full-scale Fire Laboratory, include a tunnel, and a 10-storey atrium both of which are served by a high capacity ventilation system. The proposed work is divided into four distinct areas: in the first area the research is focused on developing procedures for measuring experimentally the heat release rate of large fires occurring in both the tunnel and the atrium; the second area deals with atrium smoke management systems and the impact of make-up air velocity on their effectiveness; the third area will investigate fire detection systems in tunnels; and the fourth area will study the interaction between tunnel ventilation and suppression systems. In all proposed research areas both computer modelling using computational fluid dynamics models and experiments will be used. Comparisons between experimental data and model predictions will be made for model validation. In addition the models will be used to develop correlations and guidelines for the design of these systems.