柴油均质压燃发动机的循环模拟研究  

Cycle Simulation Modeling for Diesel Fuel HCCI Engine

作　　者：崔毅[1] 石磊[1] 刘宇[1] 邓康耀[1] 

机构地区：[1]上海交通大学动力机械及工程教育部重点试验室,上海200030

出　　处：《内燃机工程》2006年第4期13-16,21,共5页Chinese Internal Combustion Engine Engineering

基　　金：国家重点基础研究发展规划(2001CB209205);国家自然科学基金项目(50406016)

摘　　要：建立了一个柴油均质压燃发动机的零维循环计算模型,用基元反应机理和感应时间(EMIT)模型预测着火正时,用拟合的对数正态分布函数计算不同工况的放热率。与试验的对比表明,模型能够比较准确地预测不同工况柴油均质压燃发动机的工作性能。用建立的模型分析了配气定时对柴油均质压燃燃烧过程的影响,计算表明配气定时可以控制均质压燃燃烧的运行工况范围。A zero dimensional cycle simulation model for diesel fuel HCCI-engine was developed in this paper. The ignition timing was calculated with elementary reaction mechanism and induction time （EMIT） model, which was derived from CHEMKIN code. The heat release rate was calculated with lognormal distribution function, which was fitted with measured data of heat release. The predictability and accuracy of the model was proved by comparing calculation results with experimental data. The effects of variable valve timing （VVT） on diesel fuel HCCI combustion were analyzed with the model. The result shows that VVT can control the operating range of HCCI engines.

关 键 词：内燃机 模拟 柴油机 燃烧 均质压燃 

分 类 号：TK421.2[动力工程及工程热物理—动力机械及工程]