Energy reduction measures cover many different ship lifecycle phases and technological areas. The measures are applicable to a wide range of ship types. The technologies we present here have been divided into four main headings: ship design, propulsion, machinery and operation & maintenance. By combining all these areas and handling them together as an integrated solution, a truly efficient ship operation can be achieved.
Ship design includes topics such as ship dimensions, hull and appendage design as well as total ship concepts. This is a category where substantial savings can easily be achieved if they are introduced in the beginning of the ship design process.
Propulsion covers subjects from propulsion concepts, propeller hull interaction and propeller design all the way to alternative propulsion solutions such as wind power. Especially new concepts can result in great power saving. Also the rapidly evolving numerical tools for fluid dynamics have given us a much greater understanding of the physics behind the hydrodynamic phenomena and means of design opitimisation.
The machinery category contains topics related to machinery concept selection, electric and hybrid configurations, heat recovery, alternative fuels and automation and control. Selecting and tailoring the machinery concept for the right operating profile can have great impact on the fuel consumption. Also the waste heat recovery has proven to generate big energy savings and has potential for many further enhancements.
Operation & maintenance includes measures concerning ship operation, such as time in port, voyage planning and speed reductions. It also contains subjects related to maintenance and service of the vessel, such as hull and propeller cleaning, automationadjustments and condition based maintenance programs.
