期刊
INTERNATIONAL SHIPBUILDING PROGRESS
卷 67, 期 1, 页码 5-31出版社
IOS PRESS
DOI: 10.3233/ISP-190276
关键词
Life cycle performance assessment; zero emission vessels; alternative fuels; energy efficiency; emission costs
One of the major challenges facing the maritime sector today is the transition to zero emission carbon-neutral vessels. In particular, work vessels such as dredging vessels are required to operate worldwide and under heavy conditions. These vessels have a high power density, limited on-board space, require often a large autonomy, and therefore will need very energy dense fuels. This article presents an environmental and economic assessment of four cutter suction dredger drive system design alternatives with the life cycle performance assessment tool. This tool includes the most important environmental factors as well as the net present value. The effect of emission costs and fuel price developments may be taken into account with scenarios, and this article illustrates that they have a large effect on the economic viability of future zero emission vessels. A combination of clean fuels, new prime mover technologies, efficient design and effective system integration has the potential to achieve zero emissions while maintaining the vessels' functionality. However, technology alone cannot solve the complex challenge of energy transition in the maritime sector. In order to make zero emission designs economically viable, a system wide integration is needed, meaning cooperation in the value chain and effective policies.
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