Optimization of critical angle, distance and flow rate of secondary fuel injection in DI diesel engine using computational fluid dynamics

Abstract This study presents the optimization of intake manifold and optimized flow rate acetylene gas which acts as a low reactivity fuel to achieve superior performance emission characteristics used in Reactivity controlled compression ignition (RCCI) engine. Intake is one engine components are an important factor determining quality combustion. A very recent evolution RCCI using temperature combustion technique requires injected through secondary injector. The injector must be designed allow maximize amount liters per minute required for better If mounted apart from critical point, then may poor also if not supplied properly, there risk excessively, knocking along with backfire due excess charge accumulation during process. Physical testing different angles, distance supply time cost consuming To mitigate this issue done computational fluid dynamics principles comes handy minimize money. In our study, ANSYS-FLUENT software simulation purposes. Optimization carried out by analyzing pressure contours at entrance chamber. inclination found turbulent kinetic energy dissipation rate.