Method for operating an energy system of a cargo ship comprises providing energy necessary for driving a ships propeller and for an electrical network by controlling the direction and size of the energy flow

摘要

Method for operating an energy system (1) of a cargo ship comprises providing energy necessary for driving a ships propeller (7) and for an electrical network (4) by controlling the direction and size of the energy flow (13) and operating the whole system consisting of a main engine (2) and an auxiliary engine (5) in a prescribed operating point. An independent claim is also included for an energy system for a ship. The prescribed operating point is characterized by the fuel requirement, the exhaust gas emission and/or the running time of the auxiliary engine of the whole system.