Multi-step optimization with operational scenarios for hull form and propulsor design for pod-driven cruise ships

• DOI: 10.1016/j.heliyon.2024.e40954
• Publication Date: 2024-12-07T00:55:35Z
• Authors: Lecheng Li; Long Yu; Zhiyuan Cai; Jingjing Liu; Qidong Fan; Youjiang Wang
• Keywords: Propulsor; Naval architecture; Optimal design; Marine energy

With the increasing demand for reducing CO2 emissions by International Maritime Organization (IMO), controlling a ship's energy consumption at design stage is crucial proposing 'greener' design. Some efforts have been made to consider Energy Efficiency Design Index (EEDI) and Operational (EEOI); however, latter remains highly complex contentious. In this study, multistep optimization analysis method was developed integrate EEDI EEOI evaluations during meet low emission requirements. Additionally, an Efficient Scenario Analysis Method (EOSAM) established operational efficiency. This applied optimize hull propulsor of pod-driven cruise ship. By accounting operating conditions in both calm water wave scenarios, utilizing high-fidelity computational fluid dynamics simulations model test validation, delivered power reduced up 7.1% compared original design, decreased average 16.7%.