物理化学学报2012，Vol.28Issue(4)：787-791,5.DOI:10.3866/PKU.WHXB201202161
煤油自点火特性的实验研究
Experimental Study of Autoignition Characteristics of Kerosene
摘要
Abstract
The ignition delay times of gas-phase kerosene/air mixtures were measured behind reflected shock waves,using side-wall pressure and CH emission measurements in a heated shock tube.The experiments were performed over the temperature range of 1100-1500 K,at pressures of 2.0× 105 and 4.0× 105 Pa,and for equivalence ratios (φ) of 0.2,1.0,and 2.0.The effects of temperature,pressure,and equivalence ratio on the ignition delay time were investigated.The global activation energy for kerosene/air varies significantly when the equivalence ratio changes from 0.2 to 1.0,whereas the global activation energy at an equivalence ratio of 1.0 is almost the same as that at 2.0.Three correlations for the ignition delay time under three different equivalence ratios were deduced.The current data were compared with available kinetic mechanisms,and were found to be in good agreement with the predictions of Honnet et al.Chemical mechanism sensitivity analyses for different equivalence ratios were performed; the results showed that the ignition sensitivity at an equivalence ratio of 0.2 is quite different from those at 1.0 and 2.0.关键词
点火延时/煤油/加热激波管/敏感度分析/动力学机理Key words
Ignition delay time/Kerosene/Heated shock tube/Sensitivity analysis/Kinetic mechanism分类
化学化工引用本文复制引用
唐洪昌,张昌华,李萍,王利东,叶彬,李象远..煤油自点火特性的实验研究[J].物理化学学报,2012,28(4):787-791,5.基金项目
国家自然科学基金(91016002)资助项目 （91016002）
