Study and simulation effective parameters on combustion and pollutant formation in diesel engines

Subject Areas : Termodynamic

بهادر شعبانی ¹ (گروه مهندسی مکانیک، واحد سمنان، دانشگاه آزاد اسلامی، سمنان، ایران)
Hadi Kargar Sharifabad ² (استادیار، مرکز تحقیقات انرژی و توسعه پایدار، واحد سمنان، دانشگاه آزاد اسلامی، سمنان، ایران)

Received: 2015-11-21 Accepted : 2015-11-22 Published : 2015-11-22

Keywords: pollution, Diesel engine, Combustion, Fire, Spraying,

Abstract :

In this study, CFD modeling combustion engine software is used FIRE to optimize its performance. A three-dimensional model of the processes that formed in the cylinder made of air-fuel mixture, injection and combustion. The three-dimensional model, all chemical species, the density of air and fuel injection nozzles with full specification is intended to be Properties precise mixing of air and fuel, ignition, spray penetration, and penetration premixed combustion at different times and in accordance with The piston is achieved. Select the model for optimal fuel injection (injection management, Injector hole number, time of injection and spray angle) to achieve the best fuel economy and lowest emissions are used.