丙酸甲酯的自着火特性与模型研究  

Experimental and Modeling Study on Auto-Ignition of the Methyl Propanoate

作　　者：张自航 胡二江[1] 潘伦[1] 陈毅臻 黄佐华[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《工程热物理学报》2016年第2期428-432,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51306144);中央高校基本科研业务费资助

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。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.

关 键 词：丙酸甲酯(MP) 激波管 着火延迟期 化学反应动力学 

分 类 号：TF055[冶金工程—冶金物理化学]