东南大学学报（英文版）2008，Vol.24Issue(4)：532-536,5.
多孔介质发动机详细反应动力学模型
Simulation of porous medium engine using a detailed chemical kinetics model
摘要
Abstract
The Senkin code of the Chemkin chemical kinetics package is used to simulate the combustion process of a porous medium(PM)engine fueled by n-heptane. The code is modified to incorporate the Woschni heat transfer correlation and heat transfer model within a porous medium. A detailed chemistry mechanism of NOx formation is coupled with the detailed chemical kinetics mechanism of n-heptane. The code is applied to a zero-dimensional single-zone model of engine combustion. Influences of operating parameters on the performance of the PM engine are discussed. With the increase in the intake temperature and compression ratio, or with the decrease of the excess air ratio, the ignition timing of the PM engine obviously advances. It is found that the porous medium acting as a heat recuperator can considerably preheat the fuel-air mixture, which promotes the ignition and combustion in the cylinder. And the initial PM temperature is a critical factor controlling the compression ignition of the mixture.关键词
多孔介质(PM)发动机/单区模型/数值模型Key words
porous medium (PM)engine/single-zone model/numerical simulation分类
能源科技引用本文复制引用
刘宏升,解茂昭..多孔介质发动机详细反应动力学模型[J].东南大学学报（英文版）,2008,24(4):532-536,5.基金项目
The National Natural Science Foundation of China( No. 50476073 ). （ No. 50476073 ）
