The Impact of Slow Steaming on Fuel Consumption and CO2 Emissions of a Container Ship

Modern marine propulsion systems must be reliable, energy efficient, environmentally friendly, and economical. Efforts to reduce fuel costs carbon dioxide (CO2) emissions per nautical mile have a significant impact on the choice of system. Considering that there is no alternative for maritime transport, various technical technological solutions are being considered aim improve efficiency negative environment. One ways achieve this goal slow steaming, which reduces consumption CO2 emissions. The designed speed vessel has steaming. Slow steaming particularly suitable large container ships with design more than 20 knots. In paper, effects analyzed using example ship diesel-engine propulsion. Propulsion low-speed medium-speed diesel engines mechanical power transmission investigated. Data required engine propeller were used study, obtained from calculations during testing ship’s hull model. reduction specific emission numerical models two-stroke four-stroke engines. calibrated validated data provided by manufacturers. paper analyses four different cases where one or two engines, three analysis concludes can effectively emissions, but optimal system highly dependent market conditions in transportation. affects potential