【作者】

Shengli Wei，Huan Chen

【摘要】

论文已在中国上海举行的2013年CIMAC大会上发表。论文的版权归CIMAC所有。A double Ω -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.

【会议名称】

第27届CIMAC会议

【会议地点】

上海

【下载次数】

2

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