DESIGN AND NUMERICAL STUDY OF HYDROKINETIC TURBINE ON TAIL RACE OF BAKARU HEPP FOR APPLICATION OF COMBINED-CYCLE HYDROPOWER SYSTEMS

• Main Author: Ramadhan, Muhammad
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/86967
• Institution: Institut Teknologi Bandung

The 2060 Net Zero Emission (NZE) target encourages the optimization of renewable power generation. One of the efforts made is the utilization of kinetic energy of hydropower tail race flow by installing hydrokinetic turbines. The energy generated can reduce the Own Use (PS) of hydropower plants through the concept of Combined-Cycle Hydropower Systems. This research was conducted at Bakaru Hydropower Plant, South Sulawesi, which is a run-of-river plant with a vertical Francis turbine. Measurements of the flow velocity in the tail race carried out using the Acoustic Doppler Current Profiler (ADCP) showed a tail race flow velocity of 1.6-2.4 m/s when the Bakaru hydropower plant was at a maximum load of 126 MW, so the theoretical power potential of the Bakaru hydropower plant tail race is 48 kW. Simulations were conducted on three turbine designs with chord lengths of 100 mm, 209 mm, and 314 mm based on solidity values (0.1; 0.2; 0.3) placed at two mounting positions on the tail race. The results showed that the turbine with 100 mm chord had the highest moment coefficient, while mounting position 2 produced more power than position 1. It was found that the highest power of 1,436.84 W was obtained for the turbine with 100 mm chord at mounting position 2.