ABSTRACT

This paper deals with a combustion analysis, before undertaking the experimental investigations, a thorough study of the fuels must be conducted. These qualities of the fuels may have an effect on the fuel’s droplet size, size distributions, spraying characteristics, fuel evaporation, pressure, and temperatures. Now a day’s, Diesel engines from low-power applications to heavy-duty applications are intended to use electronically control management (ECM) operated injection systems. The use of a solenoid injector and pressure control valve (PCV) in this system assists in strategically injecting fuel which helps for control and shortens combustion even for biodiesel (higher viscous) fuels.In this present study, the compression ignition (CI) engine is operated with operated direct injection with high pressure and a split injection strategy. The split injection operated angles are pilot injection 14 deg before top dead center (bTDC) (27% mass share) and main injection 7 deg bTDC (73% mass share) at 60 Mpa fuel injection pressure. Also, the engine with maximum compression ratio (CR)18, piston geometry (square and tangential groove), exhaust gas recirculation (EGR 0% and 10%), and fuels (B00 and B20) are operated with a split injection strategy. The combustion characteristics like combustion pressure, rate of pressure rise, net heat release rate, and maximum mean gas temperature, combustion event time (duration, time, and angle) are studied.

This study provides a comprehensive model which might very well help in the design process by predicting the performances and emissions of CI engines running using diverse fuels, such as methyl ester & Diesel. The experimental investigation showed that the split injection strategy for both piston geometry is favored during combustion. Diesel engine with B00 fuel with a square piston is showing complete combustion, while B20 fuel with tangential piston geometry is favored. In addition, EGR20% assists with controlled combustion and emissions. These specifics of the analytical technique Nevertheless, the primary features of the generated fuel were consistent with the ASTM standards. Displays the oxygen concentration by mass, kinematic viscosity, densities, flashing & fire points temperatures, lower calorific values, & certain numbers for pure methyl ester with diesel.

Keywords: Split injection, tangential and square groove, combustion characteristics,