Simulation and Evaluation of Exhaust and Intake System of a Four-Stroke Spark Ignition Engine

A mathematical model for the gas exchange process and to estimate the pressure, temperature, velocity and mass flow rate at selected points in the exhaust and intake systems of a 4 stroke, single cylinder spark ignition engine is described. In order to evaluate the model, the computed data of gas pressure in intake system was compared with the experimental data while for the exhaust, the comparison include gas pressure and velocity. A satisfactory correlation was observed between the computed and test data.