NDLI: An Improved Model for SI Engines

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Amir, H. Shamekhi Gaffari, Ali
Copyright Year	2004
Abstract	In this paper an improved mathematical model of spark ignition engines is presented. The model is derived based on a combination of thermodynamically relations and dynamical characteristics of engines. The geometrical parameters of the engine, valves and spark timing, air to fuel ratio, specific fuel consumption and engine operational conditions are considered during all four strokes of the engines. The engine is divided into some related subsystems namely; throttle body, intake manifold, fuel delivery system, intake and exhaust valves, E.G.R., torque production system, rotational dynamics and emission system. Each subsystem is modeled and the inter-relation between them has been considered. A new computer code is developed in Visual C++6 based on derived relations. This code may be considered as an appropriate means to investigate the performance of a given SI engine and to derive the emission results. The computer code is able to evaluate twelve combustion production species in a full thermodynamic equilibrium. Other engine performance quantities such as power, torque, thermal efficiency, work done by piston, pressure and temperature time histories are also evaluated in this simulation.
Sponsorship	Internal Combustion Engine Division
Starting Page	215
Ending Page	222
Page Count	8
File Format	PDF
ISBN	0791837467
DOI	10.1115/ICEF2004-0818
e-ISBN	0791837483
Conference Proceedings	ASME 2004 Internal Combustion Engine Division Fall Technical Conference
Language	English
Publisher Date	2004-10-24
Publisher Place	Long Beach, California, USA
Access Restriction	Subscribed
Subject Keyword	Visualc++6 Si engines Simulation Modeling Spark-ignition engine
Content Type	Text
Resource Type	Article

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