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受限空间内典型液体可燃物的燃烧特性
刘全义, 胡林, 邓力, 朱博, 朱文田, 梁光华
PDF(528 KB)
PDF(528 KB)
受限空间内典型液体可燃物的燃烧特性
Combustible characteristics of the typical liquid combustibles in a confined space
The combustion will be easily caused by a large amount of goods inconfined space.An experimental platform for the combustion of liquid combustibles was designed and established in a confined space and the typical liquidssuch as n-heptane, cyclohexane, and aviation kerosene were selected as fuels for the fire tests.The parameters of the flame height,heat flux,and smoke velocity field of combustible materials were measured. The results show that: smoke velocity produced by aviation kerosenecan be the highest and its smoke velocity field is distributed in the ranges of 0. 007 m/ s and 3. 078 m/ s. The flame height of aviation kerosene is the largest and up to 1. 02 m,while,flame height of cyclohexane and n-heptane is 0. 9 m and 0. 8 m.And the peak heat flux of cyclohexane,n-heptane,and aviation kerosene at a distance of 30 cm from the fire source are 1. 18,1. 11 and 0. 83 kW/m2 respectively.It is concluded that combustion characteristics of typical liquid combustibles can be used to judge the fire characteristics,which provides theoretical support for civil aviation fire detection
受限空间 / 烟雾速度场 / 火焰高度 / 热流密度 / 火灾探测 {{custom_keyword}} /
confined space / smoke speed field / flame height / heat flux / fire detection {{custom_keyword}} /
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