中文摘要：

本文通过利用激波管实验装置,测量了丙酸甲酯（MP）在温度1020~1720 K、压力0.12~1.0 MPa、燃料浓度0.5%~2.0%以及当量比0.5~2.0范围内的着火延迟,并将实验结果与两个化学反应动力学机理（Princeton机理和Westbrook机理）的模拟结果进行了对比。由于两个机理都不能够很好地预测MP的着火延迟,通过对现有机理的优化,得到了一个改进的模型,该模型能够很好地预测本实验中MP的着火。

英文摘要：

Using a shock tube facility,ignition delay times of methyl propanoate（MP） were measured at the temperature of 1020~1720 K,pressures of 0.12~1.0 MPa,equivalence ratios of 0.5~2.0 and fuel concentrations of 0.5%~2.0%.The measurements were compared to the predicted values using two available MP chemical kinetic models（Princeton model and Westbrook model）.As the two models failed to give a reasonable prediction on MP ignition,a modified MP model was proposed through modification on the available models and it gives better prediction on the MP ignition delay times under all tested conditions than those of the two available models.