دوره 9، شماره 3 - ( 6-1398 )                   جلد 9 شماره 3 صفحات 3001-2991 | برگشت به فهرست نسخه ها


XML English Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Zareei J, aghakhani M H, ahmadipour S. Numerical investigation of the variation of compression ratio on performance and exhaust emission of a turbo-diesel engine . ASE 2019; 9 (3) :2991-3001
URL: http://www.iust.ac.ir/ijae/article-1-517-fa.html
Numerical investigation of the variation of compression ratio on performance and exhaust emission of a turbo-diesel engine . Automotive Science and Engineering. 1398; 9 (3) :2991-3001

URL: http://www.iust.ac.ir/ijae/article-1-517-fa.html


چکیده:   (18041 مشاهده)
Changing the compression ratio and presence of turbocharger are two important issues, affecting on performance, and exhaust emissions in internal combustion engines. To study the functional properties and exhaust emissions in regards to compression ratio at different speeds, the numerical solution of the governing equations on the fluid flow inside the combustion chamber and the numerical solution of one-dimensional computational fluid dynamics with the GT-Power software carried out. The diesel engine was with a displacement of 6.4 Lit and Turbocharged six-cylinder. In this engine was chosen, the compression ratio between 15: 1 and 19: 1 with intervals of one unit and the range of engine speed was from 800 to 2400 rpm. The results showed that by the presence of a turbocharger and changing the compression ratio from 17: 1 to 19: 1, the braking power and torque increased by about 56.24% compared to the non-turbocharged engine. In addition, was reduced the brake specific fuel consumption due to higher power output. The amount of CO and HC emissions decreases based on the reduction of the compression ratio compared to the based case, and the NOX value increases due to the production of higher heat than turbocharged engines. The overall results showed that the turbocharged engine with a 19: 1 compression ratio has the best performance and pollution characteristics.
متن کامل [PDF 844 kb]   (3230 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: موتور احتراق داخلی

ارسال نظر درباره این مقاله : نام کاربری یا پست الکترونیک شما:
CAPTCHA

بازنشر اطلاعات
Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.

کلیه حقوق این وب سایت متعلق به مجله بین‌المللی مهندسی خودرو می باشد.

طراحی و برنامه نویسی : یکتاوب افزار شرق

© 2024 CC BY-NC 4.0 | Automotive Science and Engineering

Designed & Developed by : Yektaweb