In order to systematically study the interaction of water mist with flame sheltered by barrier, a series of experiments were conducted in a 8m x 10m x 5m full scale confined space with high pressure water mist system. Before and after the application of water mist, some K-type thermocouples along the liquid pool fire up-surface centerline were used to measure flame temperature and a CCD camera was used to record the extinguishment events onto VHS tapes for subsequent frame-by-frame analysis, respectively. The experimental results show that when the liquid pool fire is thoroughly sheltered by barrier, common water mist cannot extinguish the fire, but it can effectively control and suppress the fire spread and reduce the fire temperature obviously; when the liquid pool fire is sheltered partly, more water mist can reach the fire area by increasing the water mist pressure, reducing the horizontal distance and the height between the nozzle and pool fire, so the fire extinguishing time can be decreased.
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机译：为了系统地研究水雾与被屏障遮挡的火焰之间的相互作用，在带有高压水雾系统的8m x 10m x 5m全尺寸密闭空间中进行了一系列实验。在施加水雾之前和之后，沿着液池着火表面中心线使用了一些K型热电偶来测量火焰温度，并使用CCD摄像机将灭火事件记录在VHS胶带上，以便随后逐帧进行分析。实验结果表明，当液体池火被障碍物完全掩盖时，普通的水雾不能扑灭火灾，但可以有效地控制和抑制火势蔓延，明显降低火势。当部分掩盖液池火时，通过增加水雾压力，减小喷嘴与池火之间的水平距离和高度，更多的水雾可以到达着火区域，从而可以减少灭火时间。
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