Total Cost of Ownership For a Marine Fuel System

Abstract: The modern marine fuel system have a vital part in preparing the fuel before it can enter theengines. Hard particles and water are removed and the viscosity needs to meet limitationsof the engines, to prevent damage. The cost for operating the fuel system and wear on theengine varies depending on how the fuel system are operated and on surrounding parameters.This thesis explains the cost impact of di erent parameters on the total cost for operating afuel system and aims to create a total cost of ownership model that also considers the costsfor systems connected to the fuel system.The total cost of ownership model includes capital expenses for the equipment and the operationalexpenses in form of; energy, service, sludge storage, water production, risk and alsoincreased costs on connected systems.The result of this total cost of ownership research shows that even if there are an increasedcost for operating the fuel system itself for highest performance will the total cost of ownershipwhen considering connected systems be lower. The user are therefore always recommendedto aim for maximum separation of hard particles to decrease the cost for enginewear and to lower the total cost of risk for a breakdown. The total energy consumption forthe fuel system can be decreased by up to 15% when variable ow control are used on thesupply pumps and meanwhile increase the separation eciency.