Study on the Prediction of Performance and Emission in a 4-Cylinder 4-Stroke Cycle Turbocharged Gasoline Engine (First Paper)

4기통 4사이클 터보과급 가솔린 기관의 성능 및 배기조성 예측에 관한 연구 (제1보)

As a mean of increasing engine power, great attention has been concentrated on the turbo-charging owing to better fuel economy, smaller engine size and lower emission. The performance in turbocharged engine depends not only on the efficiency of the engine and the turbocharger used, but also on the total characteristics of the system by the matching turbocharger to the engine. The matching of the turbocharger to the engine has been usually accomplished by the empirical techniques with a great deal of laborious work. It would be better to predict the performance and emission in the turbocharged engine using the effective simulation model. In this study, computer simulation program has been developed to predict the transient variation of properties of gas in the cylinder, intake and exhaust pipes, the engine performances and emissions.