How Methanol-Diesel Fuel Blends Influence the Performance Characteristics of a Compression Ignition Engine

Experimental work was carried out to evaluate the performance, 1combustion, and emission1 properties of ignition engines using different types of diesel fuel at three different speeds (1600, 2000, and 2500 rpm) under three loads (2, 5, and 8 nm).Methanol was mixed with pure diesel fuel at three different levels (9%, 16%, and 24%), named M9, M16 M24, respectively, while pure diesel fuel, named D, was also considered to facilitate a comparison.The performance indicators studied were brake-specific fuel consumption, brake 1thermal efficiency, 1exhaust gas temperature, noise intensity and friction power.Additionally, exhaust gas emissions were analyzed, including CO, CO2, NOx, and HCI.The results show the possibility of using the M24 fuel type instead of pure diesel fuel without making any modification to the diesel engine, as there is a clear difference in brake thermal efficiency, exhaust gas temperature, noise intensity, and friction power at different loads and speeds compared to pure diesel fuel.We notice an effect due to the triple interaction between fuel type, speed and load, with D recording the highest value at a speed of 1500 rpm1 and a load of 3 nm, as it recorded a clear increase for brake-specific fuel consumption.M24 recorded the highest value at a 1speed of 1500 rpm1 and a load of nm 8 in brake 1thermal 1efficiency.It also recorded a clear 1decrease in exhaust gas emissions CO, NOx, HCL, and exhaust gas temperature as well as noise intensity, while it recorded an increase in CO2.