سال انتشار: ۱۳۸۶

محل انتشار: پنجمین همایش موتورهای درونسوز

تعداد صفحات: ۱۰

نویسنده(ها):

Seyed Navid Shahangian – Iran Heavy Diesel Engine Mfg Co (DESA)
Seyed Ali Jazayeri – K N Toosi University of Technology

چکیده:

Homogeneous Charge Compression Ignition (HCCI) is a form of combustion in which pre-mixed fuel and oxidizer (typically air) are compressed to the point of auto-ignition. HCCI engines can operate with most alternative fuels, especially, dimethyl ether(DME) which has been tested as a possible diesel fuel due to its simultaneously low NOx and PM emissions. In this paper a single zone detailed chemistry combustion model for determining the time evolution of thehomogenous reacting gas mixture in the combustion chamber and performance characteristics analysis has been developed. The effect of ,intake temperature and EGR on the characteristics of auto-ignition, and operating window of the HCCI combustion with considering knock and misfire boundaries, has been
investigated.