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This study aims to ensure an extensive assessment of the 50000 DWT tanker vessel's hybrid electrical generation system. A numerical model was constructed using the data obtained from the ship. The simulation comprised load distributions of diesel generators in various operation modes. Multi-attribute decision-making methods determined the optimal number of batteries, charging, and discharging times, then, the simulation computed fuel consumption and emissions of the hybrid plant using two charging strategies. The first scenario involved using generators, while the second used a waste heat recovery system. The results indicated that the first strategy has the potential of fuel-saving up to 8.618% and is suitable for ships that spend more time in the port. The second strategy can save up to 18.145% fuel and is usable for all operation modes. The predictions of future fuel savings depicted that the proposed system could save up to 2109.408 t fuel in five years.

Numerical simulation of the hybrid ship power distribution system and an analysis of its emission reduction potential