Investigation the Effect of the Green Alcohol Blend fuels on Engine Head Deposit Formation in Spark Ignition Engine

Abstract

Based on the findings of short-term research, biofuels are considered a viable alternative to petroleum gasoline fuel. Long-term studies employing various types of oils as fuel revealed problems with engine maintenance and wear. A single-cylinder spark ignition engine was put through a 120-hour test at 1300rpm to see how fueling affected engine longevity. Using a single-cylinder spark ignition (SI) engine, this study exam-ined the long-term endurance test of PF100 (petrol fuel) as the base fuel and blended fuels, PF95E5 (10% ethanol and 90% PF) and PF95nBu5 (10% n-Butanol and 90% PF). Additionally, PF100, PF95E5%, and PF95nBu5% impacts on engine head deposits were examined. In comparison to PF100 and PF90nBu10%, the SEM and EDS research re-vealed that PF95E5% had a greater concentration of carbon deposits surrounding the engine head surface. Furthermore, compared to the other two, binary mix fuel exhibit-ed fewer carbon deposits on the engine head. This demonstrated that the carbon deposition on the engine head surface was much decreased by the addition of n-butanol. The proportion of carbon layer on engine head surfaces for PF, PF95E5, and PF95nBu5 is 41.67%, 43.42%, and 21.01%, respectively. During experimental analysis, very little deposit development was seen for the fuel PF95nBu5.