Experimental Investigation and Performance of Diffuser Type Exhaust Manifold in Single Cylinder CI Engine with Various Injection Pressure

mechanical engineering

The combustion process in the internal combustion engine is varying cycle to cycle while changing load, speed, etc. It is difficult to achieve better fuel economy and reduce pollution emissions. Literature shows that a taper, straight and lower thermal inertia exhaust manifold gives better mass conservation, fuel economy and engine efficiency.Optimum injection pressure will reduce exhaust pollution and gives better fuel economy. Back pressure and injection pressure on engine having a strong influence on engine performance .Back pressure need to be minimized by using divergent shape exhaust manifold and optimum injection pressure can be achieved by experimentally .Therefore one of the operating parameters affecting the performance and emissions of a Diesel engine is the fuel injection pressure also. Most of the injection pressure studies have been performed with direct injection (DI) Diesel engines. However, the injection pressure in indirect injection (IDI) Diesel engines also affects the emissions, especially CO2 and smoke. So injection pressure variations will give a better way to inject fuel so that optimize performance of our four stroke single cylinder diesel engine to reduce exhaust emissions and to get better fuel economy and power. My objective of this project is to use optimum injection pressure and diffuser type exhaust manifold to get better fuel economy and reduce the amount of smoke and exhaust gas emission.

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