Fleet in service – exploit its potential, control costs: Bunker saving with fast vessels

By Peter Pospiech at October 10, 2013 04:05
Filed Under: Company News, drive systems, General, New Technology, Propulsion systems
Propulsion improvement adaptations achieve fuel consumption decrease, depending on ships type, of up to six percent. To reduce fuel consumption on vessels, different propulsion improvement adaptions can be done – according to type of vessels and operating range. While pre-swirl-equipments increase the propeller force, boost nozzles the drive efficiency by an effective propeller force. Post-swirl-equipments are leading partly the torsional energy back into forward speed. Because of these pre-swirl-equipments or nozzles fuel consumption can be reduced by up to 5% and by propeller fins and rudder bowls of up to 2%. The following adaptations can be used: pre-swirl-stator, post-swirl-fins, nozzles, propeller fins, German Leitrad and Costa-Bowl. Which adaptation leads to an efficiency increase depends on the operating profile of the vessel. To evaluate the potential as well as the interaction with the ship’s hull and also other components, an analysis by the help of computational... [More]

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