Partial research for a master's degree in mechanical engineering Effect of Injector Nozzle Holes on Diesel Engine Four Stroke Performance

Abstract

Diesel engine model simulation designed for four-stroke direct-injection diesel engine requires the use of advanced analysis to carry out of the direct-injection diesel engine model performance effect focuses on fuel nozzle multi holes geometries. The computational model simulation development was use the commercial computational fluid dynamics of GT-POWER 2016 software were specially development for internal combustion engines performance simulation. The research concentrated on the one-dimensional model and focuses on fuel nozzle multi holes geometries variation developed from all of the engine components size measurement of the original selected diesel engine. All of the measurements data input to the window engines component menu for running input data in the model. Results of the diesel engine fuel nozzle multi holes geometries model simulation running is in GT-POST. The model performance shows in engine cylinder and engine crank-train on software window output. The performance analysis effect of the model investigated of fuel in-cylinder engine, indicated specific fuel consumption, indicated torque and indicated power of engine modeled. The simulation result was shown that the seven holes nozzle provided the best for indicted power, indicated torque and indicated specific fuel consumption in any different engine speed in simulation.