摘要
通过自行研制的低氧低压模拟试验箱开展了小尺寸甲醇油池火燃烧实验,研究了在多种气压条件(40kpa、45kpa、55kpa、65kpa、75kpa、85kpa、100kpa)下的油池火燃烧特性参数的差异。实验发现,一定情况下,甲醇燃烧速率随着气压的升高而升高,呈现幂函数关系;火焰高度和火焰面积从低压开始先随着气压值的升高而升高,当达到一定的气压值后就会随着气压值的升高而降低;随着气压升高,羽流中心温度下降的幅度变缓。
In this paper, small size of methanol pool fire experiments were carried out in a self-designed low oxygen and low pressure experiment devices, and the combustion characteristics under different pressures （40kpa, 45kpa, 55kpa, 65kpa, 75kpa, 85kpa, 100kpa） was compared. It is found that the burning rate of methanol increases with the atmosphere pressure, and the variation could be well fitted by a power function. The values of flame height and flame area would increase with the rising of the atmosphere pressure, until reaching the turning point, and then decrease. When the pressure increases, the plume centerline temperature drops slowly.
出处
《火灾科学》
CAS
CSCD
2011年第2期81-86,共6页
Fire Safety Science
