Statistical And Experimental Investigation of Engine Parameters for Performance and Emission in RCCI Mode Using Diesel/Gasoline

Abstract

Internal combustion (IC) engines are likely to continue to rule the transportation industry for another couple of decades. This is despite the fact that research and government schemes today concentrate on alternative power generation units and technology like fuel-cells and hybrid cars. It has been demonstrated that using the right fuels and implementing new combustion modes would accelerate the development of IC engines. This experimental & statistical study is carried out on a single-cylinder engine which is operated in the RCCI mode using the diesel as the primary fuel and the gasoline as the secondary fuel. The parameters chosen for the study are Premixed Ratio (PR), Fuel Injection Pressure (IP), Start of main Injection (SOI), Start of Pilot Injection (SOPI) and Mass of Pilot Injection (MOPI). The objective of the study is to find the effects of these input parameters on BSFC & NOx and to examine the interactions between various parameters using a statistical approach. The results of Response Surface Method of analysis shows that PR, IP, and SOMI significantly impacted BSFC and NOx, while SOPI and MOPI had the least significant impact.