Ship propulsion system and ship, and operation method of ship propulsion system

摘要

A ship propulsion system comprises: an engine; a supercharger supplying supercharging air to the engine; an auxiliary blower supplying air to the engine; a first generator supplying electric power to the auxiliary blower in a first load area of an engine load range of the engine to be stopped in a second load area which is a range of a higher load than that of the first load area; and a power supply unit which is power supply different from the first generator, and supplies electric power generated by use in exhaust heat generated when operating the engine to the auxiliary blower in the second load area. According to the present invention, provided are a ship propulsion system and an operation method of a ship and the ship propulsion system, which can surely operate an auxiliary blower while restricting fuel consumption required for operation of the auxiliary blower when air is supplied to an engine by the auxiliary blower.