期刊论文

中文

车辆与动力技术

1009-4687

2017

1

1-5+20

10.16599/j.cnki.1009-4687.2017.01.001

湖南省自然科学基金项目（2016JJ2003） 国家自然科学基金项目（N051176014）.

本校为第一机构

为了对掺氢汽油机缸内预混湍流燃烧过程进行更深入的研究,通过反应系数变异分析,优化了掺氢PRF燃料燃烧的化学反应动力学简化机理,采用CHEMKIN软件的Premixed模块,建立并验证了掺氢PRF燃料的预混层流燃烧模型,并在此基础上研究了掺氢对PRF燃料预混层流燃烧过程的影响.研究结果表明,掺氢促进了庚烷与异辛烷的脱氧反应及自由基H、OH的链锁反应,加快了相同初始压力温度以及化学当量比条件下PRF燃料的层流燃烧速度;此外,掺氢增加了NO的排放,但可以有效减小CO2的排放.

In order to further research on premixed turbulent combustion in the cylinder of hydrogen doped gasoline engine, the hydrogen PRF fuel combustion chemical kinetics mechanism was simplified and optimized through the analysis of the reaction coefficient, and the hydrogen PRF fuel premixed laminar combustion model was established and verified by CHEMKIN software Premixed module. On this basis, the hydrogen addition＇s effect on PRF fuel premixed laminar combustion was studied. Research results show that hydrogen promotes the deoxidation reaction o...