Use of diesel fuel blend with biofuel from waste vegetable oils with potassium permanganate (KMnO4) as additive in a research engine

In this study, 1,51mg potassium permanganate solution (KMnO4) was added to 100 ml of fuel in order to improve the physical and chemical properties of the two prepared fuels after mixing the reference diesel fuel and the biodiesel fuel obtained from waste vegetable oils in certain proportions. These fuels are B0 (diesel fuel), B12 (12% vegetable biodiesel and 88% diesel fuel), B24 (24% vegetable biodiesel and 76% diesel fuel), PMB12 (12% vegetable biodiesel, 88% diesel fuel and KMnO4 additive) and PMB24 ( After it was prepared in the form of 24% vegetable biodiesel, 76% diesel fuel and KMnO4 additive), its physical and chemical properties were determined. The additive (KMnO4) added to the experimental fuels increased the cetane index of PMB12 fuel and the heating value of PMB24 fuel. Experimental fuels were tested in a diesel engine with Edyy Current dynamometer at 0%, 10%, 15% and 20% loads and engine combustion and emission characteristics were investigated. When the experimental data are examined; Cylinder gas pressures of the test fuels are close for all loads, and it has been observed that the gas pressure of the mixed fuels increases with the increase of the engine load and is higher than the mixed fuels with KMnO4 additives. In data such as average gas temperature, pressure increase rate, net heat release and cumulative heat release, it was seen that biodiesel blended and KMnO4 added fuels had higher values than diesel fuel. The specific fuel consumption value of the blended fuels increased by 22.64% for 0-0kg load, compared to diesel fuel, while there was an increase of 9.37% at 20-10kg load. The average effective pressure value was measured as 373.05 kPa in diesel fuel and 372.57 kPa in mixed fuel. When the emission data were examined, it was observed that the NOX emission values were higher in blended fuels than in diesel fuel.