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Item type:Publication, Access status: without files , Impacts of the energy efficiency design index on future designs of fast RoRo and RoPax vesselsThe Energy Efficiency Design Index is a new regulation which is being developed by the International Maritime Organization to reduce carbon dioxide emissions from ships. This Paper highlights various problems, which are expected to occur with the introduction of the index. Especially fast RoRo and RoPax vessels for coastal transportation are subject to those restrictions and might therefore have enormous problems to achieve the required index. The reduction of the ship speed seems to be the only possible way to reduce the attained EEDI in such a way to be able to fulfill the new guideline for fast ships. For a standard 200m Ferry only a speed not higher than about 22 knots will be allowed. Based on various examples, the application of the EEDI for fast RoRo and RoPax vessels is explained and the expected problems are described. In addition, the impact of the index on the design process itself will be shown and new design concepts are presented. Furthermore, this thesis will give some recommendations how to optimize a ship for minimizing the EEDI while maximizing design speed of the vessel.Publicationtype: Conference Paper8