Simulation and Analysis on Effect of Injection System Parameters to Double- Combustion Chamber Performance
A double -combustion chamber matching double-row nozzle injector combustion system was proposed. The in-cylinder spray and combustion process of diesel engine was simulated by using AVL FIRE software. The influence of different nozzle hole cone angles and fuel injection advance angles were analyzed on the concentration field, temperature field as well as combustion and emission characteristics. The results show that new combustion system can improve the quality of mixture, meanwhile, the emission performance is enhanced, and the maximum mass fraction of soot was reduced by 53.4% than the single-row nozzle injector. The combustion mean temperature and pressure decreased with retarded injection timing, moreover, the rate of heat release and the accumulated heat release curves went back, and the both maximums were decreasing. When it was 4°CA BTDC, NO and soot emissions were all low.
Shengli Wei Huan Chen Xianyin Leng
Jiangsu University,China
国际会议
上海
英文
1-7
2013-05-13（万方平台首次上网日期，不代表论文的发表时间）