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为了探究叠氮复合柴油实现快速燃烧的根本原因,本文在挂滴试验装置上利用高速摄像技术观察了初始直径为1.42 mm的苄基叠氮化合物液滴蒸发过程中的形态变化,研究了环境温度对液滴蒸发特性的影响。试验结果表明当环境温度达到苄基叠氮化合物发生液相化学反应的温度时,液滴的蒸发特性将发生根本改变,而且在液滴蒸发过程中观察到了液滴变形、气泡产生和膨胀、喷气、微爆等四种主要现象,这一强烈的反应是液滴内部的苄基叠氮化合物在液相中分解高速释放出的N_2所引起地。
In order to explore the fundamental reason for rapid combustion of azide composite diesel fuel, this paper observed the morphological changes of droplet of benzyl azide with an initial diameter of 1.42 mm by high-speed camera technology in a droplet test apparatus. The effects of ambient temperature Effect on droplet evaporation characteristics. The experimental results show that when the ambient temperature reaches the temperature at which the benzyl azide compound undergoes a liquid-phase chemical reaction, the evaporation characteristics of the droplets are fundamentally changed, and droplet deformation, bubble generation and expansion are observed during the evaporation of the droplets. , Micro explosion and other four main phenomena, the strong reaction is the benzyl azide within the liquid droplets in the liquid phase decomposition caused by the high-speed release of N2.