Computer Simulation of a Proposed Marine COGAS Propulsion System

The equilibrium conditions at various power levels of a conceptual COGAS (combined gas turbine and steam turbine) system have been modeled on a digital computer. The steam turbine contributes a higher fraction of total power at part power loads than it does at full power loads. In the Waste Heat Recovery Unit (WHRU) boiling moves away from the economizer as the power level is raised.