Volume 8, Issue 4 (12-2018)                   ASE 2018, 8(4): 2840-2847 | Back to browse issues page

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Hassanzadeh Saraei S, Khalilarya S, Jafarmadar S, Takhtfirouzeh S, Taghavifar H. Numerical modeling of the effects of changing injection duration in double injection strategies in a DI diesel engine . ASE 2018; 8 (4) :2840-2847
URL: http://www.iust.ac.ir/ijae/article-1-471-en.html
Numerical modeling of the effects of changing injection duration in double injection strategies in a DI diesel engine
Sina Hassanzadeh Saraei , Shahram Khalilarya , Samad Jafarmadar , Saeed Takhtfirouzeh , Hadi Taghavifar
Urmia University
Abstract:   (20412 Views)
Pollutant emissions from diesel engines are significantly affected by fuel injection strategies that could reduce NOx and Soot emissions. For the first time and in this study, numerical simulations were performed to consider the influences of changing the injection duration in each pulse of the double injection strategies on in-cylinder parameters and pollutant emissions. Results confirmed that double injection strategies could influence the in-cylinder temperature, which leads to a reduction in NOx and soot emissions. Additionally, it is seen that decreasing the injection duration could increase the in-cylinder peak pressure and temperature. It could also reduce the soot emission owing to the better fuel atomization. Moreover, RATE+0.5CA case, which injection duration for each pulse increases 0.5 CA, was selected to be the optimum case in reduction of pollutant emissions.
 
Keywords: CFD simulation, Diesel Engine, Double injection strategy, Injection duration, Pollutant emissions.
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Type of Study: Research | Subject: Modern Powertrain (hybrid, electric, CNG, bio, ...)
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