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Experimental study of different size n-heptane pool fire behavior under low pressure

UDC 536.46:614.841.4
Authors Jian Wang, Master of Technical Sciences
Wei Wang, Grand PhD in Technical Sciences
Rui Yang, Associate Professor
Abstract To analyze the high plateau affected by the difference of air pressure, such as flame temperature, mass burning rate and radiation flux have a great difference in every burning stage compared to the oil pool fires in plain region. The experiments were conducted in High plateau air laboratory with different oil pool diameters. Heat release rate, burning rate and flame temperature field distribution and flame radiation heat flux were recorded and analyzed in these experiments. The relationship between oil pool size and mass burning rate was deduced, and which was found that the mass burning varies linearly with oil pool size. Was found that implementing the classical theory assessment the flame temperature cannot correctly predict temperature rise for the influence of low pressure and low oxygen concentration. Analysis also shows that the bigger oil pool area, the greater the radiation fluxes. By the curve fitting method, the relationship between the oil pool size and the heat radiation flux was also obtained.
Keywords high plateau, oil pool fire, burning rate, plume temperature, thermal radiation
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