Simulation study on the Influence of EEDI Requirements to Shiphandling in Heavy Weather

TransNav: International Journal on Marine Navigation and Safety of Sea Transportation

Chihiro Nishizaki¹  Hideo Yabuki¹  Tadatsugi Okazaki¹  Yasuo Yoshimura² 

[1] Tokyo University of Marine Science and Technology, Tokyo, Japan;University of Tokyo;

关键词: ship handling;    energy efficiency design index (eedi);    co2;    heavy weather;    main engine;    energy efficiency operational index (eeoi);    maritime environmental protection committee (mepc);    pure car carrier (pcc);   

DOI  :  10.12716/1001.13.04.19

来源: DOAJ

【 摘 要 】

In order to reduce the CO2 emission from ships, International Maritime Organization executes the restriction of Energy Efficiency Design Index (EEDI) which limits amount of CO2 when freight of one ton is carried at one mile. Although the realization of higher efficiency of main engine without reduction of engine output is the best solution, it might be impossible. To comply with the EEDI requirements, it is assumed that the ship’s engine power becomes smaller than the existing ship by means of improving the ship propulsive efficiency. However, shiphandling in rough seas is expected to become difficult when the engine power is reduced. In this paper it is shown that the influence of the degraded main engine exerts on the safety of shiphandling in heavy weather based on the simulation study. In these experiments, both the simulation model that decreased engine power corresponding to EEDI requirement and that with the conventional engine power were tested, and masters in active service maneuvered the test ships in the rough seas.

【 授权许可】

Unknown