Speaker
Description
This research investigates the intricate relationship between engine parameters and emissions performance in marine four-stroke diesel engines. The primary objective was to optimize the air-fuel mixture flow and combustion process in a Perkins 404D-22 engine, aiming to enhance overall performance and significantly reduce harmful emissions.
Two types of simulations were conducted: base-speed and parametric. Base-speed simulations were performed at 2200 RPM and 3000 RPM to assess the effects of different engine speeds on power output, combustion efficiency, and emissions formation. Parametric simulations explored the impact of initial air temperature, pressure, and injected fuel mass on engine performance and emissions.
The results demonstrated a complex interplay between engine parameters, significantly affecting both performance and emissions. While higher engine speeds generally result in increased power, they can also lead to higher emissions and reduced fuel efficiency. The optimal operating speed depends on specific application requirements. Additionally, the study revealed that pre-combustion conditions, such as initial air temperature, pressure, and injected fuel mass, have a substantial influence on engine performance and emissions.
This research contributes to the development of strategies for improving marine diesel engine design and operation, ultimately contributing to the protection of the marine environment and the achievement of sustainable shipping goals.
