دوره 1، شماره 1 - ( 10-1389 )
جلد 1 شماره 1 صفحات 37-29 |
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Nemati A, Khalilarya S, Jafarmadar S, khatamnejhad H, Fathi V. Effect of Injection Characteristics on Emissions and Combustion of a Gasoline Fuelled Partially-premixed Compression Ignition Engine. ASE 2011; 1 (1) :29-37
URL: http://www.iust.ac.ir/ijae/article-1-7-fa.html
URL: http://www.iust.ac.ir/ijae/article-1-7-fa.html
Effect of Injection Characteristics on Emissions and Combustion of a Gasoline Fuelled Partially-premixed Compression Ignition Engine. Automotive Science and Engineering. 1389; 1 (1) :29-37
چکیده: (27129 مشاهده)
Conventional compression ignition (CI) engines are known for their high thermal efficiency compared to spark ignited (SI) engines. Gasoline because of its higher ignition delay has much lower soot emission in comparison with diesel fuel. Using double injection strategy reduces the maximum heat release rate that leads to NOx emission reduction. In this paper, a numerical study of a gasoline fuelled heavy duty Caterpillar 3401 engine was conducted via three dimensional computational fluid dynamics (CFD) procedures and compared with experimental data. The model results show a good agreement with experimental data. To have a better design the effect of injection characteristics such as, the main SOI timing, injection duration and nozzle hole size investigated on combustion and emissions and an optimized point find. The results suggest an optimization in injection characteristics for simultaneous reduction of NOx and soot emissions with negligible change in IMEP.
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