Fuel System

Fuel system.

Identification of heat energy requirement is not easy, because it depends of various random conditions. For ships powered by low speed engines, feed by HFO (heavy fuel oil), it depends on fuel type, which needs preheating in transportation and preparation phase. Moreover, heat requirement depends on: – type and size of a ship and kind of cargo, – crew and passenger number, – shipping Line climate zone, season or time of day.

For ships dedicated for long range trips, are implemented steam boilers with fuel oil burners, and recuperation boilers heated by exhaust gases coming from main engines. The general idea is that recuperation boiler works during steaming at sea and burner boiler works when ship is mooring at a harbour. Both boilers are functionally connected. Most common working medium is water, but also thermal oil can be spotted.