Experimental and simulated investigations of marine diesel engine performance against dynamic back pressure at varying sea-states due to underwater exhaust systems

The innovation of underwater exhaust systems on ships increases onboard space, reduces noise emission and allows for zero direct emissions. For defense vessels, stealth is increased as the heat signature reduces due to underwater exhaust. However, there is a disadvantage of dynamic back pressure at the exhaust outlet which deteriorates the...

Modelling and Simulation of the Diesel Engine Injection Systems

This thesis aims at gaining insights into the operational principles of the diesel engine injection systems and reproducing the dynamic of fuel injection in the diesel engines. Two popular fuel injection systems are modeled in this thesis, including the mechanical injection system and the common-rail injection system.