STUDI PARAMETER DARI VERTICAL AXIS WIND TURBINE (VAWT) DARRIEUS SKALA-KECIL TERHADAP PRESTASI TURBIN ANGIN MENGGUNAKAN DINAMIKA FLUIDA KOMPUTASIONAL

• Main Author: Allufi, Jeremia
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/69066
• Institution: Institut Teknologi Bandung

Severe fossil fuel shortages and global warming issues demand a shift in energy use to renewable energy in global scale. In Indonesia, Dewan Energi Nasional (DEN) has set a target for the use of renewable energy of 23% of the total national energy use by 2025. Meanwhile, in 2020, the use of renewable energy of only 11.2% has been achieved in 2020 [1]. From a number of renewable energy sources, wind energy is one of the most promising and well-studied. Other than the large-scale wind turbines developed for both onshore and offshore use, small-scale wind turbine for urban application can become a considerable contributor for renewable energy production. However, low average wind velocity distribution in Indonesia brings another challenge in the development of small-scale wind turbine. Although many studies have been conducted to understand the performance of small-scale wind turbine, few of them are focused on low wind velocity. Accordingly, a parametric study on the performance of small-scale wind turbine for different geometrical parameters will be established to provide an understanding on the development of a turbine suitable for urban application in Indonesia. The research will be done using a helical-blade vertical-axis wind turbine (VAWT) design benchmark where the turbine performance prediction will be obtained numerically through computational fluid dynamics (CFD). The effects of helix angle, solidity and pitch angle are analyzed and it is shown that a wind turbine with 60° helix angle, with 2 blades and 5° pitch angle has the best performance on wind speed of 3 m/s.