INTERNAL COMBUSTION ENGINE SYSTEM, SHIP PROVIDED WITH SAME, AND METHOD FOR OPERATING INTERNAL COMBUSTION ENGINE SYSTEM

摘要

Provided is an internal combustion engine system that, when performing the actions of stopping and starting power generation in a supercharger for generating power, can avoid sudden fluctuations in the amount of steam produced by an exhaust gas boiler to stably operate a steam turbine and a steam turbine power generator. A water supply control valve (27) is controlled in an opening direction when the water level in a brackish water separator (12) falls below an allowable water level range and is controlled in a closing direction when the water level exceeds the allowable water level range. A steam inlet control valve (22) is controlled so as to supplement the amount of power generated by a steam turbine power generator (40) in accordance with variation in the amount of power generated by a power generator (3c) of a supercharger (3). The allowable water level range of the brackish water separator (12) is expanded when a supercharger power generation stop action is performed for stopping power generation by the power generator (3c) of the supercharger (3), and/or when a supercharger power generation start action is performed for starting the power generation by power generator (3c) of the supercharger (3).