Dynamic Modeling of an Internal Combustion Engine in Open-Modelica

Abstract

This project aims to develop a four-stroke spark-ignition (SI) internal combustion engine model using OpenModelica. The model is designed and implemented through programming to analyze engine performance and assess the impact of key parameters, including bore size, stroke length, and compression ratio, on engine power. Built upon the Otto cycle, the model simulates engine behavior using thermodynamic principles and fundamental engine equations. This study also examines how variations in structural parameters influence overall engine efficiency and performance. The findings reveal that changes in engine design parameters significantly affect power output. The developed model serves as a valuable tool for performance analysis under various operating conditions, contributing to the optimization and advancement of more efficient internal combustion engines.