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Concept design of a fast sail assisted feeder container ship

Burden, Aaron, Lloyd, Thomas, Mockler, Simon, Mortola, Lorenzo, Shin, Ie Bum and Smith, Ben (2010) Concept design of a fast sail assisted feeder container ship , Southampton, GB University of Southampton 257pp.

Record type: Monograph (Project Report)


A fast sail assisted feeder container ship concept has been developed for the 2020 container market in the South East Asian and Caribbean regions.
The design presented has met the requirements of an initial economic study, with a cargo capacity of 1270 twenty-foot equivalent unit containers, meeting the predictions of container throughput derived from historical data. In determining suitable vessel dimensions, account has also been taken for port and berthing restrictions, and considering hydrodynamic performance. The vessel has been designed for a maximum speed of 25 knots, allowing it to meet the demand for trade whilst reducing the number of ships operating on the routes considered.
The design development of the fast feeder concept has involved rigorous analyses in a number of areas to improve the robustness of the final design. Model testing has been key to the development of the concept, by increasing confidence in the final result. This is due to the fact that other analysis techniques are not always appropriate or accurate.
Two hull forms have been developed to meet requirements whilst utilising different propulsor combinations. This has enabled evaluation of efficiency gains resulting from different hydrodynamic phenomena for each design. This includes an evaluation of the hydrodynamic performance when utilising the sail system. This has been done using a combination of model test results and data from regression analysis. The final propulsor chosen is a contra-rotating podded drive arrangement. Wind tunnel testing has been used to maximise the performance of a Multi-wing sail system by investigating the effects of wing spacing, stagger and sail-container interactions. This has led to an increase in lift coefficient of 32% from initial predictions. The savings in power requirement due to the sail system are lower than initially predicted. However, another benefit of their installation, motion damping, has been identified. Whilst this has not been fully investigated, additional fuel savings are possible as well as improved seakeeping performance.
The design is shown to be environmentally sustainable when compared to existing vessels operating on the proposed routes. This is largely due to the use of low-carbon and zero-sulphur fuel (liquefied natural gas) and improvements in efficiency regarding operation. This especially relates to cargo handling and scheduling. Green house gas emissions have been predicted to fall by 42% and 40% in the two regions should the design be adopted. These savings are also due to the use of the Multi-wing sail system, which contributes to reductions in power requirement of up to 6% when the vessel operates at its lower speed of 15 knots. It is demonstrated that the fast feeder is also economically feasible, with predicted daily cost savings of 27% and 33% in the South East Asian and Caribbean regions respectively.
Thus the fast feeder container ship concept is a viable solution for the future of container transhipment.

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Published date: April 2010
Organisations: Fluid Structure Interactions Group


Local EPrints ID: 173137
PURE UUID: ef0f102a-0cf7-4e23-a62c-5a8db70f7fe6

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Date deposited: 02 Feb 2011 09:24
Last modified: 18 Jul 2017 12:13

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Author: Aaron Burden
Author: Thomas Lloyd
Author: Simon Mockler
Author: Lorenzo Mortola
Author: Ie Bum Shin
Author: Ben Smith

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