KAJIAN NUMERIK PENGARUH SOLIDITY TERHADAP KINERJA TURBIN SUMBU VERTIKAL DARRIEUS UNTUK KONVERSI ENERGI GELOMBANG DENGAN MENGGUNAKAN PROFIL HIDROFOIL SIMETRIS NACA 0024

Abstract

With the increasing demand for electricity and concerns over global warming driving us to reduce dependence on fossil fuels, we are exploring ocean-based energy solutions. By exploiting the kinetic power of seawater, we can convert wave energy and ocean currents into electricity. The Darrieus turbine serves as the main tool in this process, converting kinetic energy into mechanical energy, which can then be converted into electricity. In this study, variations solidity of 0.3 and 0.15 were used on a Darrieus turbine with a symmetrical hydrofoil profile NACA 0024 with a turbine diameter of 1m to produce power coefficient. The highest Coefficient of Power (CP) values were obtained on the NACA 0024 symmetrical blade profile angle of attack 5° and solidity 0,3  which is equal to CP = 0,325.