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多环十一烷烯烃二聚物C22H24是一种新型高能密度烃类燃料。评估了它作为固体燃料在高剪切流下的点火特性。该二聚物样品用苯乙烯聚丁二烯共聚物做粘合剂(10%W/W)固化在试验室壁上,在马赫数0.12~0.25,滞止温度与压力各自为27℃和150~250KPa条件下,用空气中气体火焰对流点火。测量了点火时间和释热率。结果表明:在相同热力学条件和几何结构下,与端羟基聚丁二烯燃料相比,二聚物点火时间快一个数量级。燃烧释放的热量至少高两倍。应用扫描电子显微镜、高速照相术、压力和温度测量法,研究了这些燃料的相变、点火和燃烧过程。
Polycyclic undecylene olefin dimer C22H24 is a new type of high energy density hydrocarbon fuel. It was evaluated as a solid fuel under high shear flow ignition characteristics. The dimer sample was cured with a styrene-polybutadiene copolymer binder (10% W / W) on the wall of the test chamber at a Mach number of 0.12 to 0.25, a hold-up temperature and a pressure of 27 ℃ and 150 ~ 250KPa conditions, the use of gas flame convection in the air. The ignition time and the rate of heat release were measured. The results show that under the same thermodynamic conditions and geometry, dimer ignition time is one order of magnitude faster than that of hydroxyl terminated polybutadiene fuel. Burning heat released at least twice as high. The phase transition, ignition and combustion processes of these fuels were studied using scanning electron microscopy, high-speed photography, pressure and temperature measurements.