INVESTIGATION OF EXHAUST VALVE DEPOSITION IN COMPRESSION IGNITION DIRECT INJECTION ENGINE

Abstract

Experiments on short-term engine operation have shown that waste cooking oil is a desirable replacement for compression ignition engines. Using blends of waste cooking oil, the research was conducted over an extended endurance test. to understand the long-term effects of burning used cooking oil. The results of the study showed that the operating surface of the engine head had very little wear and tear. Nevertheless, the durability test using blends of waste cooking oil and diesel was carried out. Because it has the highest fuel oxygen content, the lowest cetane number, DF80WCO10Pn10, has the longest explosion delay and the shortest burning time. Deposits from engine exhaust valves were measured and contrasted with emulsion fuels. At the same locations, a qualitative investigation was carried out using scanning electron microscopy techniques. Visual inspection revealed some deposits on the engine exhaust valve when it was running on all fuels, according to the investigation's conclusions. According to the study, DF90WCO10 left more carbon deposits on the engine exhaust valve than DF80WCO10Pn10 and DF when SEM and EDS were used.