Experimental Study With Acetone-Gasoline Fuel Blends on Engine Performance and Exhaust Emissions in a Spark Ignition Engine

Abstract

This study presents the influences of acetone addition into gasoline on engine performance and exhaust emissions in a spark ignition engine. A single cylinder, four stroke, air cooled spark ignition engine was utilized as the test engine. Tests were performed at wide-open throttle and 2400, 2800, 3200, 3600 and 4000 rpm engine speeds. Engine torque increased with the increase of acetone. Specific fuel consumption (SFC) increased by 3.72%, 9.06% using A10 and A20 compared to pure gasoline at 2800 rpm respectively. Thermal efficiency decreased by about 0.34 % and 1.89 % with A10 and A20 according to pure gasoline at the same engine speed. It was also seen that carbon monoxide (CO) and hydrocarbon (HC) decreased with the increase of acetone fraction in the fuel blends. CO and HC decreased by 2.13% and 5.79% with A10 and A20 according to gasoline at 4000 rpm respectively. Test results also showed that lower CO2 (carbon dioxide) were measured with fuel mixtures. However, A20 presented higher CO2 emissions compared that A10 test fuel for all engine speeds. CO2 emissions decreased by 5.04% and 2.01% with A10 and A20 according to pure gasoline at 4000 rpm engine speed. As a result, acetone can be efficiently used as an additive fuel in spark ignition engines without any modifications.