The CFD Study of Methanol-diesel Dual Fuel Combustion for Greener Engine

The use of methanol as a fuel for neat and dual-fuel combustion engines is being extensively researched within the internal combustion engine field. Introducing methanol into diesel dual-fuel engines has been found to lower the combustion temperature, resulting in reduced NOx, CO2 and soot emissions. The primary focus of the study is to optimize the combustion process parameters to enhance efficiency and reduce emissions in methanol-diesel dual-fuel engines. The research investigates the effects of the optimal diesel injection timing strategy as well as the diesel engine speed on engine performance and emissions, utilizing computational fluid dynamics (CFD) code. The study also involves creating a diesel engine model with a variable injection system to determine the best injection angle for methanol-diesel blends and neat diesel combustion mode along with engine speeds. The results of the study demonstrate that; using methanol fuel in neat and dual-fuel mode combined with optimum injection angle and speed is affect positively fuel economy, brake thermal efficiency, and greenhouse gas emissions reduction. The results are fully presented and discussed.