•The two stroke cycle engine is more favored for diesel powerplant.•The air required for the diesel engine is drown through the air filter from the atmosphere and compressed inside the cylinder.•The fuel from the diesel engine is drawn through a filter fromthe all day tank and injected into the cylinder through fuel injectors.•Because of the high temperature and pressure of thecompressed air, the fuel burns and the burnt gases expand to dowork on the moving part inside the cylinder called piston.
•This movement of the piston rotates a flywheel and the engineis directly coupled to electric generator.•The gases after expansion inside the cylinder is exhausted into the atmosphere and passes through a silencer in order to reducethe noise.•Diesel power plants produce power in the range of 2 to 50MW.•They are used as standby sets for continuity of supply such as hospitals , telephone exchanges , radio station , cinema theatresand industries (peak load).•They are suitable for mobile power generation and widely usedin railways and ships.
• Air intake system• Fuel supply system• Exhaust system• Cooling system• Lubricating system• Starting system
• The air required for the combustion of fuel inside the diesel engine cylinder isdrawn through the air filter. The purpose of the filter is to remove dust from the incoming air.• dry filter- may be made offelt , wood or cloth.• wet filter- oil bath is used.
Supercharging•The purpose of supercharging is to raise the volumetric efficiency above that value whichcan be obtained by normal aspiration.•The engine is an air pump, increasing the air consumption permits greater quantity of fuel tobe added, and results in greater potentialoutput.
Effects of Supercharging•The Power output of a supercharged engine is higher than its naturally aspirated counterpart.