EFFECTS OF FIVE DIFFERENT PARAMETERS ON BIODIESEL HCCI COMBUSTION IN FREE-PISTON ENGINE GENERATOR

被引：5

作者：

Liu, Chunhui ^{[1
]}

Wu, Shaojie ^{[1
]}

Pang, Shuo ^{[1
]}

机构：

[1] Anhui Sci & Technol Univ, Coll Mech Engn, Fengyang, Peoples R China

来源：

THERMAL SCIENCE | 2021年 / 25卷 / 06期

关键词：

FPEG; skeletal mechanism; biodiesel; HCCI; EMISSIONS; PERFORMANCE; SIMULATION; IGNITION; DESIGN;

D O I：

10.2298/TSCI2106197L

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A coupled 3-D CFD and detailed chemical kinetics model of free-piston engine generator (FPEG) was adopted to investigate the effects of initial parameters on homogeneous charge compression ignition (HCCI) combustion and emission. Biodiesel with 115 species skeletal mechanism was selected as fuel. Five different parameters, namely the initial pressure, the initial temperature, the working frequency, the compression ratio and the fuel equivalence ratio, were selected to analyze their influences in the HCCI combustion simulation of FPEG. The simulation results showed that the change of the five parameters had visible impact on the heat release rate of HCCI combustion, which caused the in-cylinder temperature and pressure to change, and also caused the emission content of NOx and SOOT to change obviously.

引用

页码：4197 / 4207

页数：11

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