Investigation of Hull Design Modifications on Fuel Consumption and Energy Efficiency Design Index (EEDI)

Currently, efforts are focused on reducing emissions to support carbon neutrality by 2050 through green technology. Green technology applies the ship's design, port, engine selection, fuel, and operation. This study modified hull reduce drag improve fuel efficiency. Changes were made based variations in deadrise angle, which analyzed using numerical simulation. In current situation, angle is changed from 9° 10°, 15°, 20°. On variation, effects of changes ship drag, energy efficiency design index (EEDI). The method simulates computational fluid dynamics with a Holtrop calculation validation approach. At 12 6 knots above deadrise, resistance reduced 8.2% 6.8%, respectively. achieved 6.9% at knots, resulting monthly savings 2.43 tonnes. Furthermore, phenomenon EEDI value lowest highest speed has decreased performance value. Reducing 9 improves 66%