Investigation of the effects of hydrogen addition to fusel oil-diesel fuel blends on combustion characteristic and emissions

With the increasing need for energy and the increasing environmental pollution caused by the energy sources used, studies on new and renewable energy sources that can replace petroleum-based fuels are increasing rapidly. We see that the studies on the use of alcohol-based fuels, which are preferred among the fuels used as an alternative to petroleum, in internal combustion engines have recently increased rapidly. Fuzel oil is a product obtained in the distillation process in alcohol production. In this study, F15 fuel was obtained by adding 15% by volume of fusel oil (F) to diesel fuel (D). As an additional fuel, hydrogen gas was introduced from the intake manifold at different flow rates (10, 20 and 30 L/min) and test fuels were obtained. The test fuels were named as D, F15, F15+10 Lpm H2, F15+20 Lpm H2 and F15+30 Lpm H2, respectively. The effects of the obtained test fuels on combustion, performance and emissions in a 3-cylinder, water-cooled, pre-combustion chamber diesel engine were investigated experimentally. The experiments were carried out at a constant engine speed of 2000 rpm and different engine loads (15, 30, 45 and 60 Nm). Initial experiments were carried out with diesel fuel (D) to obtain reference data. Then the experiments were carried out with other test fuels under the same conditions.