基于详细化学反应动力学的RCCI燃烧过程建模及影响因素分析  

RCCI Combustion Progress Modeling and Influence Factors Analysis Based on Detailed Chemical Kinetics

作　　者：姚登举[1] 汪春梅[1] 彭杨茗 李晶晶[1] 

机构地区：[1]合肥工业大学汽车与交通工程学院,安徽合肥230009

出　　处：《内燃机与动力装置》2016年第6期15-19,共5页Internal Combustion Engine & Powerplant

摘　　要：活性控制的压缩着火(RCCI)燃烧方式利用燃料反应活性的差异,实现可控、有组织的低温燃烧。燃烧受燃料活性分层控制,燃烧过程的计算有赖于详细的化学反应机理。利用开源CHEMKIN子程序库,本文构建了适合RCCI燃烧的准维多区模型,通过与试验的对比,证明了该模型的合理性和可靠性。在此基础上计算了不同汽/柴油比例和喷油时刻对燃烧过程的影响,并分析了排放结果。Reactivity Controlled Compression Ignition （RCCI） combustion mainly take advantages of the different reactivity of fuels that produce controllable organized low temperature combustion in cylinder. Because of RCCI combustion controlled by reactivity stratification, it＇s necessary to cal- culate chemical reaction use detailed chemical mechanisms to simulate RCCI combustion. With the help of open source CHEMKIN subroutines, a zero-dimension multi-zone RCCI combustion model has been developed. After validated against experimental data, the result show that the model is rea- sonable and reliable. On the basis of this model, the effect of variable gasoline/diesel ratio and diesel injection timing has been studied, the result of combustion and emissions at different condition has been analyzed.

关 键 词：RCCI 多区模型 详细化学动力学 燃烧 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]