نوع مقاله : مقاله پژوهشی
نویسندگان
1 نویسنده مسئول و استادیار بخش مکانیک، دانشگاه تربیت مدرس تهران
2 مربی و عضو هیئت علمی دانشگاه آزاد اسلامی واحد شبستر
3 استاد دانشکده مکانیک، دانشگاه تهران
4 دانشجوی دکترای مکانیک، دانشگاه تربیت مدرس تهران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Aim of this paper is to investigate mechanism of NO and soot reduction by using multiple injection as useful strategy for reducing DI diesel engines emissions. In this paper, we first studied the mechanism of NO and soot reduction by using double injection. Then after investigating different modes of injection, at last we introduce optimum mode of fuel injection for a DI diesel engine manufactured in our country. Experiments were induced at Motorsazan Tabriz to validate results of CFD simulation. Amount of fuel in each pulse and dwell time between injection pulses are essential parameters. Results showed that by using double injection soot and NO will reduce by 33% and 11% respectively.
کلیدواژهها [English]