The optimum combination of energy consumers and providers (including energy recovery systems) shall improve a vessel’s overall energy efficiency. The[ds_preview] challenge is to harmonize the modelling approach from various technology providers in a way that component models can be used appropriately for energy modelling on ship level. The results of the simulation will be used for an assessment of key performance indicators like Net Present Value, Cumulated Energy Demand, Global Warming Potential, Acidification Potential, Eutrophication Potential and Particulate Matter. The LCPA (Life Cycle Performance Assessment) tool allows comparing different solutions taking into account various financial input parameters like fuel costs, investment costs, discount rate etc.
From an environmental point of view, the ›well to propeller‹ concept is applied in the LCPA, especially for alternative fuels. External costs of air emissions are integrated in the cost comparisons.
Rolf Nagel
