RP-3航空煤油模拟替代燃料的着火延迟特性

为了获得一种新的国产RP-3航空煤油模拟替代燃料的着火延迟特性,在化学激波管中完成了初始压力分别为0.1MPa与0.3MPa,当量比分别为0.5,1.0与1.5,着火温度为1000～1700K条件下该模拟替代燃料着火延迟时间的试验测试,分析了初始压力与当量比对该模拟替代燃料着火延迟时间的影响规律,并与相应工况条件下RP...

Ignition Delay Characteristics of a Surrogate Fuel for RP-3 for RP-3 kerosene

In order to gain the ignition delay characteristics of a new surrogate fuel (14% n-decane, 10% n-dodecane, 30% iso-cetane, 36% methylcyclohexane, 10% toluene, mole fraction, which gained from?reference) for RP-3 kerosene, the ignition delay times of this surrogate fuel at the initial pressures of 0.1 and 0.3MPa, equivalence ratios of 0.5, 1.0, 1.5, and the ignition temperature range of 1000-1700K, were experimental tested in a chemical shock tube. The effects of the initial pressure and equivalence ratio on the ignition delay times of this surrogate fuel were investigated and compared with the ignition delay characteristics of RP-3 kerosene under corresponding working conditions.?The results show that the correlation for the logarithm of the ignition delay time of this surrogate fuel and the reciprocal ignition temperature is linear under different conditions. At the same time, with the equivalence ratio decreasing or the ignition temperature and initial pressure increasing, the ignition delay time of this surrogate fuel is shortened. Furthermore, the ignition delay times of this surrogate fuel are agreed well with that of RP-3 kerosene under the same conditions.