This study investigated the efficacy of hybrid propulsion systems that integrate wind-sail technology with traditional engines in coastal fishing vessels. Computational fluid dynamics (CFD) simulations were employed to assess the resistance and power output of the vessel and the performance of the sail. The sail design significantly influenced the aerodynamic efficiency, with the trapezoidal sail yielding the highest thrust force and exhibiting more uniform airflow across the sails at wind speeds of 5 and 25 kN. The trapezoidal sail model achieves an efficiency of 30.6% when utilized with a 150 HP main engine at a wind speed of 25 knots. The implementation of hybrid technology, which combines diesel engines with sails, represents an innovative approach to enhance the economic viability and operational efficiency of traditional fishing vessels, thereby reducing their dependence on fossil fuels and improving their performance.

fishing vessel, hybrid-power, wind-sail, conventional engine, CFD, resistance