4.7 Article

Ship voyage optimization based on fuel consumption under various operational conditions

Journal

FUEL
Volume 352, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2023.129086

Keywords

Ship propulsion system; Fuel consumption; Voyage optimization; Ship maneuvering

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In this study, an integrated simulation model of ship propulsion and maneuvering system is established and validated. A benchmark cargo ship and a selected coastal service are used for case study. The fuel consumption under different conditions is calculated and analyzed, and the most reasonable case of saving fuel consumption is provided. This study investigates the influence of multiple factors on ship fuel consumption and provides theoretical suggestions for reducing fuel consumption over ship voyages.
Aiming at reducing ship emissions and lower operational cost, less fuel consumption is always pursued by shipping industry. Compared with other methods on reducing the fuel consumption, such as optimizing the design of hull lines or ship propulsion system, setting additional energy saving device, the voyage optimization is a way which is easier to implement and needs less investment cost. In this paper, an integrated simulation model of ship propulsion and maneuvering system is established and verified. Then, a benchmark 38800 t cargo ship and a 32n miles coastal service are selected for the case study. Based on the ship operating characteristic and voyage environments, 24 representative cases of combination about the voyage set up and ship control modes are proposed. The ship fuel consumptions under 24 cases are calculated using the integrated simulation model. Finally, fuel consumption change under different conditions are analyzed and the most reasonable case of saving fuel consumption is provided. This study tries to investigate the influence of multiple factors on the ship fuel consumption considering the realistic and representative operating conditions, and provides theoretical suggestions for ship propulsion and maneuvering control, voyage planning and engine management for reducing fuel consumption over ship voyages.

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