ANALYSIS OF LUBRICANT OIL DEGRADATION AND SOUND PRESSURE LEVEL FOR CI ENGINE USING BLEND FUELS

Abstract

Long-term engine running has been the subject of extensive research on the deterioration of engine oil. In contrast, it is not fully clear what effect will have by using synthetic and biofuels. In modern engines, traditional fuels and lubricants should be used to provide a research basis for characterizing novel fuel-related phenomena in them. This study makes an effort to characterize how engine lubricating oil behaves over the course of its service life through friction and wear analysis. Three different oil blends DF100, DF95WCO5, and DF65WCO20Pe15 were prepared to investigate friction and wear analysis and sound pressure level (SPL). The experimental results were extracted by using reciprocating test rig after every 20 hours. Kinematic viscosity, density, and wear metals: cadmium (Cd), cobalt (Co), and lead (Pb) were measured for the lubricant oil analysis. In general, n-pentanol aids in the reduction of engine wear debris, contamination, and lubricating oil oxidation. Further, DF65WCO20Pe15 ternary combination can be used in a diesel engine without any alteration. The SPL increased by 7.8 dB at engine speed of 1300 RPM in the case of the DF95WCO5. However, when compared to base line, the average SPL of DF65WCO20Pe15 ternary blend was 4.3 dB lower.