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Publications
Tadros, M., Vettor, R., Ventura, M. and Guedes Soares, C. (2022), “Assessment of ship fuel consumption for different hull roughness in realistic weather conditions”, Journal of Marine Science and Engineering, Vol. 10, 1891.
This paper presents the effect of hull roughness over ten years of operation on ship performance. The numerical model is developed by coupling NavCad and Matlab to perform the computation and the data processing. Based on a given hull, an engine and an optimized propeller, the performance of the ship is computed for eight cases of hull roughness based on the ITTC recommendations in both calm waters and different weather conditions along the ship route. The effect of both wind and waves is considered for computing the added ship resistance along the route, thus requiring more power than just only the added resistance in waves. This provides a more accurate estimation of the ship's performance along the different sea states. Finally, a weighted average of the main ship parameters is estimated to evaluate better the ship's performance. From this study, the fuel consumption in calm water can be increased by around 20% after ten years of ship operation based on the level of hull roughness. However, in the same weather conditions along the ship route, the ship's fuel consumption can increase by 10% compared to the same trip with a clean hull.
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