Engine Performance Analysis Based on Speed and Throttle Through Simulation

Abstract

Internal combustion engine (ICE) performance is greatly influenced by engine speed and throttle opening, which contribute to brake power, brake thermal efficiency (BTE), and brake-specific fuel consumption (BSFC). This study used simulation and statistical analysis methods, including ANOVA and response surface methodology (RSM), to evaluate the impact of these two parameters on engine performance. The simulation results showed that brake power increased with increasing engine speed and throttle opening, with an average value of 15.09 kW and an R-squared of 0.9886, indicating high model accuracy. Brake thermal efficiency also increased with an average value of 24.03% and an R-squared of 0.9868, indicating increased fuel energy utilization into mechanical energy. Meanwhile, specific fuel consumption decreased with increasing engine speed and throttle opening, with an average of 385.30 g/kWh and an R-squared of 0.9584. This study confirms that optimization of engine speed and throttle opening significantly improves thermal efficiency and reduces specific fuel consumption. These findings have significant implications for designing more efficient and environmentally friendly engines. In addition, the simulation approach allows for a more precise analysis of engine performance without expensive and time-consuming experimental testing.