AUTOIGNITION OF HYDROCARBON AIR MIXTURES IN A CFR ENGINE - EXPERIMENTAL AND MODELING STUDY

被引：31

作者：

BLINSIMIAND, N ^{[1
]}

RIGNY, R ^{[1
]}

VIOSSAT, V ^{[1
]}

CIRCAN, S ^{[1
]}

SAHETCHIAN, K ^{[1
]}

机构：

[1] UNIV P & M CURIE,THERMODYNAM APPL MACHINES & THERM LAB,CNRS,URA 879,F-78210 ST CYR LECOLE,FRANCE

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1993年 / 88卷 / 5-6期

关键词：

CFR ENGINE; SEMIGLOBAL MECHANISM; AUTOIGNITION; CHEMICAL MODELING; ISOMERIZATION REACTION; OCTANE NUMBERS;

D O I：

10.1080/00102209308947243

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In order to see the accurate role of low temperature reactions in autoignition and knock phenomena, oxidation of stoichiometric hydrocarbons/air mixtures has been performed in a CFR engine and in a flow system. The results show that reactions of isomerization of RO2 radicals are important for hydrocarbons containing five or more carbon atoms. The peroxidic compounds formed through these, isomerization reactions are alkylketohydroperoxides. A correlation is made between fuel structure, octane number, isomerization reactions and autoignition. A chemical kinetic model, created to interpret autoignition and knock, reproduces the results obtained with n-heptane and the influence of engine parameters as speed, intake temperature and pressure.

引用

页码：329 / 348

页数：20

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