Experiments have been carried out to investigate the effect of opening position on pool-fire suppression by water mist in a compartment.The results show that no matter whether the opening is located at the wall or the ceiling,the extinguishing time of the pool-fire increases with the opening area,and decreases with the HRR of the pool-fire.When the HRR of the pool-fire is lower than a critical value,the extinguishing time for wall opening case is longer than that for ceiling opening case.And the extinguishing time for the case of wall opening is less than that for ceiling opening case otherwise.Theoretical analysis shows that the differences in abilities of mass exchange inside and outside and abilities of storing smoke under the ceiling should be responsible for the differences in extinguishing time between the two cases.
DU Wen-feng,DAI Shi-jie
. The effect of opening position on pool-fire suppression by water mist in a compartment[J]. Journal of Shenyang Aerospace University, 2013
, 30(3)
: 61
-64
.
DOI: 10.3969/j.issn.2095-1248.2013.03.013
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