适用于HCCI发动机的异辛烷氧化的化学动力学模型(Ⅰ)——现有模型的比较分析  

A Chemical Kinetics Model of Iso-Octane Oxidation for HCCI Engine(Ⅰ)——Comparison and analysis of currently available models

作　　者：贾明[1] 解茂昭[1] 

机构地区：[1]大连理工大学动力工程系,辽宁大连116024

出　　处：《内燃机学报》2006年第3期227-234,共8页Transactions of Csice

基　　金：国家基础研究重点规划项目(2001CB209201)

摘　　要：通过分析各种不同的异辛烷反应机理的概况,发现由于反应机理构造的目的和方法的不同,各反应机理适用的范围有所限制。为了评价反应机理对HCC I发动机燃烧过程的适用性,必须将它们的计算结果与HCC I燃烧相关的实验进行综合比较。采用零维单区模型,通过5种不同反应机理的计算与速压机、激波管和HCC I发动机等实验数据的比较发现,各反应机理在不同实验状况下性能各异,在此基础上提出了构造适用于HCC I燃烧过程的异辛烷简化机理的必要性。A review of currently available iso-octane oxidation mechanisms indicates that the range of a mechanism applied is limited due to the purpose and approach during mechanism construction. The mechanisms need to be compared with experiments of HCCI （Homogeneous Charge Compression Ignition） combustion in order to evaluate the capability in the computation of HCCI engine. Comparisons of experimental data including from rapid compression machine, shock tube and HCCI engine with computational results through five different iso-octane reaction mechanisms indicate that different mechanisms from different experimental conditions are presented. The necessity for developing iso-octane reduced mechanism for HCCI engine is proposed.

关 键 词：异辛烷 化学动力学模型 均质压燃(HCCI)发动机 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]