Every large ship engine is cooled by raw ocean water, mostly through a heat exchanger system. Basically instead of cooling the engine coolant with air like on your car, they cool it with ocean water.
In my experience in smaller boats using the same system (100-150 feet) corrosion is less of a problem than growth and calcification. Mostly we just dissolve everything with acid every once in a while on those systems.
In my experience in smaller boats using the same system (100-150 feet) corrosion is less of a problem than growth and calcification. Mostly we just dissolve everything with acid every once in a while on those systems.