Thermal Decomposition Study on a White-Light Fireworks Agent by Accelerating Rate Calorimeter
In order to prevent fire and explosion accident caused by fireworks, dry and wet white-light fireworks samples are tested by Accelerating Rate Calorimeter (ARC). The samples curves of temperature vs. time and temperature rate vs. temperature are obtained respectively. Then Pseudo-inverse matrix method is used to calculate dynamics parameters of apparent activation energy Ea and pre-exponential factor A and then the measured data are modified by considering of thermal inertia factor of ARC. The results show that dry white fireworks reacts at 294.5 ℃ and 141.42 min later, the reaction is the most drastic with temperature 434.35℃ and maximum self-heating rate 61.56 ℃·min-1, but wet white fireworks reacts at 90.44 ℃ and 1480.86 min later, the reaction is the most drastic with temperature 526.32℃ and maximum self-heating rate 0.77 ℃·min-1. Compared the thermal decomposition characteristic data of dry and wet samples modified by thermal inertia factor, conclusions can be make that dry sample react faster than wet samples, and wet fireworks are easier to reaction. Appropriate prevention measures must be taken to avoid the explosion accident occurred again.
JIANG Huiling SUN Bin
Department of Fire Protection Engineering,Chinese People s Armed Police Force Academy,Langfang 0650 Department of Fire Command,Chinese People s Armed Police Force Academy,Langfang 065000,Hebei,China
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
290-293
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）