不同尺寸的油盘池火灾临界参数研究

Study on the critical parameters of oil pool fire with different sizes

以航空煤油为燃料,分别选用300、450、600、900mm四个不同直径的油盘进行池火实验。研究不同油盘直径,不同高度的火焰温度和热辐射。结果表明,同一高度处,火焰燃烧速率、油池火达到的最高温度和产生的热辐射均随油盘直径增加而升高;油盘直径一定时,油池火的温度随高度的增加而增加,热辐射值随高度的增加呈递减趋势。实验发现,直径900 mm油盘测量高度30 cm处测得"辐射死区"的存在。

Using aviation kerosene as fuel,pool fire experiments were made using different-diameter oil pan as300,450,600,900 mm.Flame temperature and heat radiation under different oil pan diameters and heights were researched.The results showed that at the same height,fire release rate and the highest temperature and heat release increase with the increase of oil pan diameter;as for certain oil pan diameter,the temperature increase with the increase of height,whereas the heat release decrease with the increase of height.And,as for 900mm-diameter oil pan,“the zero radiation zone”was tested at the height of 30 cm.