Experimental Comparison the Effect of Mn2O3 and Co3O4 Nano Additives on the Performance and Emission of SI Gasoline Fueled with Mixture of Ethanol and Gasoline

Abstract

In this paper, the use of gasoline combinations with ethanol and nano oxide particles has been studied in gasoline-based SI EF7 engines. The mixtures are prepared in five emulsions of gasoline with 10% ethanol, gasoline with 10% ethanol and 10ppm nano Mn₂O₃, gasoline with 10% ethanol and 20ppm nano Mn₂O₃, gasoline with 10% ethanol and 10ppm nano Co₃O₄, gasoline with 10% ethanol and 20ppm nano Co₃O₄. An ultrasonic cleaner device is used to obtain a homogeneous gasoline combination with ethanol and additives of nano oxides during the test. To measure the output power of the engine, the Eddy current dynamometer has been coupled to the engine and to determine the emissions, an AVL gas analyzer is used. The results indicate that ethanol addition by 10% lead to 2.6% increase in brake power (BP), but interestingly 10 ppm Mn₂O₃ nano-additive raise the BP to 14.38% and 20 ppm nano-additive led to 19.56% increase of BP. While the BP with 10ppm and 20ppm nano-additives of Co₃O₄ has increased by 7.96% and 11.5%, respectively. With regard to emissions, ethanol presence with nano additives in the blend reduces CO, UHC, and NO_x whereas increases CO₂. The best blend is gasoline-10% ethanol-20ppm Mn₂O₃.