室内液化石油气轰燃特性的实验模拟研究

The Experiment and Simulation Study on the Flashover Characteristics of Lquefied Petroleum Gas in Door

通过对中小规模的火灾实验箱进行实验,研究了通风口尺寸、泄漏速率等因素对轰燃特性的影响。结果表明,随着通风口宽度、高度、泄漏速率、通风因子的增加,轰燃越容易发生;在一定范围内,通风口开口面积越小、位置越靠近下部,发生轰燃的可能性越大;最后进行数值模拟,并与实验数据进行了对比。

The influence of fire box size, opening area, and LPG leakage rate to the occurrence of flashover was studied. The experiments indicated that it was easier to flashover along with the increase of width, height of vents, leakage rate, and ventilation factor, the smaller area and the lower location of opening, the more possibility and the earlier of the occurrence of flashover was, apart from the extinction under too small opening. In the end, the simulation was conducted, and the comparison was done between the simulation results and experimental data.