الفهرس 
الغلافOnly 14 pages are availabe for public view
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Abstract
This study aims to develop oil additives with nanometric graphene and their impact on the performance of the diesel engine. In this study, a diesel engine was operated in two stages. The first stage was the engine running without graphene nanosheets into the oil, and the second stage after adding the nanoscale graphene slices to the oil, and it was running under the same operating conditions.
Mobil 1350 Black Delvac oil, a mono-grade SAE 50 oil, was used. Four samples of the oil were tested with graphene nanoscale chips at different concentrations. In order to choose the best concentration of graphene, the results showed that the first sample is the optimal and most suitable for use. Laboratory measurements were made for the oil before and after the addition of graphene slices, which are measuring the viscosity at temperatures of 40, 100 degrees Celsius, finding the viscosity coefficient, measuring the density, and determining the percentages of minerals in the oil. Mechanical measurements of the outer diameter of the piston and the inner diameter of the cylinder were made before and after adding graphene nanometer strips to the oil. The results proved that adding graphene to the oil leads to an improvement in the properties of the oil at temperatures of 40,100 degrees and an increase in the viscosity coefficient and does not affect the density. The results confirm that the addition of graphene nanometer strips to the oil leads to a decrease in the percentage of metals in the oil, which is an indication of a decrease in the rate of corrosion and friction between the cylinder and the piston. Among them, it was noted during the research that there was a change in the rate of fuel consumption and oil consumption, and this indicates that the graphene segments added to the oil decreased the rate of consumption of fuel and oil. It was found during the process of mechanical measurements of the piston and cylinder after adding nanometric graphene segments to the oil that there is an insulating layer of segments Nanoscale graphene on the piston body and the inner surface of the cylinder.