As the Navy transitions to an all-electric fleet, analytical tools must be developed to facilitate a
rational process for the selection of power plant configurations for specific ship designs and
modes of operation. Many hybrid designs are being considered for future Navy power plants.
These alternatives have been developed in response to the increasing demand of both
commercial companies and world Navies to implement all-electric ship (AES) designs. In this
work, a tool has been developed that could be used to analyze a combined cycle power plant that
uses a gas turbine prime mover and a steam turbine bottoming cycle. The model will be
deployed to examine the effects of varying several operating parameters on the power plant’s
weight and efficiency. The results of the analysis are presented in contrast to the operation of a
simple cycle gas turbine power plant, and used as a tool for optimizing the combined cycle plant
for installation on a frigate-sized navy ship; operating in its least power intensive mode of
operation.