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On the importance of antifouling coatings regarding ship resistance and powering

Demirel, Yigit Kemal and Khorasanchi, Mahdi and Turan, Osman and Incecik, Atilla (2013) On the importance of antifouling coatings regarding ship resistance and powering. In: 3rd International Conference on Technologies, Operations, Logistics and Modelling for Low Carbon Shipping, 2013-09-09 - 2013-09-11.

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Abstract

This paper aims to introduce one of the latest investigations on development of marine antifouling coatings and also to demonstrate the importance of the type of antifouling coatings on fouling accumulation and ship resistance/powering. First, marine biofouling and fouling prevention methods are reviewed. A recent research study (EU FP7 FOUL-X-SPEL Project) concerning a novel and environmentally friendly antifouling coating is presented and discussed. Next, a case study is carried out to assess the effect of fouling on ship resistance and powering. A vessel is selected and the roughness on the hull surface induced by different level of fouling is considered. The increase in frictional resistance and effective power is evaluated for each particular case by using boundary layer similarity law analysis and experimental data. The results emphasise that the type of antifouling coatings has a great importance on the amount of fouling accumulation, hence on ship performance especially in low speeds