این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
International Journal of Engineering، جلد ۳۴، شماره ۱۱، صفحات ۲۴۴۲-۲۴۵۱
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Numerical simulation of a heavy-duty diesel engine to evaluate the effect of fuel injection duration on engine performance and emission
چکیده انگلیسی مقاله Due to the limited space in transport vehicles, the CI engines with high power density has always been a priority. In heavy-duty diesel engines, direct injection results creation of the lean region in the space of the combustion chamber. Increasing the fuel penetration by changing injection duration is an effective solution to achieve homogenous mixture. In this paper, impact of changing Injection duration in upgraded MTU-4000-R43L diesel engine on power characteristics, rate of heat release (RoHR), combustion phasing, emission and, most importantly, the gradient of pressure changes as a characteristic of the vibration and knocking of the engine, has been studied numerically. Numerical simulation is performed in AVL Fire which is coupled with reduced detail chemical kinetics. the fuel Injection duration was varying from 14.6 to 35.6 oCA, the in-cylinder mean pressure, the IMEP decreases and the ISFC increases; however as the fuel Injection duration decreases, the pressure gradient rises; from the range of 30.6 degrees onwards, the reduction of the fuel Injection duration leads to a severe knock of the engine and as a result reduces its engine life. Emission results also showed that CO2 and NOx increased and CO reduced with decreasing fuel decreasing Injection duration.
کلیدواژه‌های انگلیسی مقاله Heavy-Duty Engine,Power Density,Injection Duration,PRESSURE GRADIENT
نویسندگان مقاله B. Alizadeh Kharkeshi |
Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran

R. Shafaghat |
Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran

M. Mohebi |
Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran

S. Talesh Amiri |
Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran

M. Mehrabiyan |
Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran

نشانی اینترنتی https://www.ije.ir/article_138052_bddd63e8a2a5dec50bb81b2ac33178dd.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات