DefinePK

Abstract

Natural fossil fuel supplies are running low, yet the world's population and urbanization are growing rapidly, increasing the fuel demand. The direct use of used cooking oil in diesel engines has been embraced to reduce the world's dependency on fossil fuels, especially in the transportation sector. This has resulted in wear and damage to the engine from carbon and lacquer deposits. In addition, the increased heat produced by modern diesel injection systems can cause deposits to become very tenacious on the piston crown. Three different fuel samples were put through a 200-hour endurance test in a single-cylinder CI engine: diesel fuel (DF), a blend of 95 percent diesel and 5 percent waste cooking oil, and DF65WCO20Pe15, a mixture of 65 percent diesel, 20 percent waste cooking oil, and 15 percent n-pentanol. In this study, we looked into how piston crown deposits were affected by DF, the binary fuel blends DF95WCO5, and the ternary fuel blend DF65WCO20Pe15. According to the investigation, visual inspection showed some deposit deposition on the piston when it was operating with all tested fuel types. As determined by SEM (scanning electron microscopy) and EDS (energy dispersive X-ray spectroscopy), an engine running on DF95WCO5 left more carbon deposits on and around the piston surface than one running on DF65WCO20Pe15.