Numerical investigation on the effect of different parameters on the performance and the emission of a spark ignition (SI) engine | Zendy

Hessam Mirgolbabaei | Zendy; Mehran Bozorgi | Zendy; Mey M | Zendy

Open Access

Numerical investigation on the effect of different parameters on the performance and the emission of a spark ignition (SI) engine

Author(s) -

Hessam Mirgolbabaei,

Mehran Bozorgi,

Mey M

Publication year - 2013

Publication title -

international journal of the physical sciences

Language(s) - English

Resource type - Journals

ISSN - 1992-1950

DOI - 10.5897/ijps10.445

Subject(s) - ignition system , spark (programming language) , nuclear engineering , automotive engineering , parametric statistics , spark ignition engine , homogeneous charge compression ignition , ignition timing , work (physics) , software , mechanical engineering , computational fluid dynamics , engineering , computer science , materials science , aerospace engineering , combustion , chemistry , combustion chamber , mathematics , statistics , organic chemistry , programming language

In this work, NISSAN Z24 engine was simulated numerically and valves and ignition timings were modified in order to improve the engine performance and emissions. The engine was simulated using a version of the Los Alamos code KIVA-3V2 which is a computer program for the numerical calculation of transient, two and three dimensional chemically reactive flows with sprays. The computational grid was generated by the commercial software, ANSYS ICEM CFD. To validate the code, a comparison between experimental and theoretical results has been made, which confirm good qualitative agreement between these results. A series of parametric studied is performed to gain a better understanding of the effects of valves and ignition timings on the engine performance and emission. The results show that the engine volumetric efficiency, output power, emissions and performance are well improved by applying the optimal values. Key words: Spark ignition (SI) engine, valves and ignition timings, engine performance and emissions.

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