MODIFICATION OF WIND SHROUD INVELOX AND WIND SPEED RATIO TEST USING NUMERICAL SIMULATION METHOD

• Main Author: Naufal Rizdiawardana, Chairul
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50941
• Institution: Institut Teknologi Bandung

In 2050, energy demand in Indonesia is estimated to reach 548,8 million tonne of oil equivalent (TOE) with Business as Usual (BaU) scenario. Meanwhile, until now, the majority of energy consumption in Indonesia still uses fossil energy. There is a need to shifting the use of energy from fossil energy into new and renewable energy (NRE), and of them is wind energy. In 2014, D. Allaei invented a wind turbine shroud technology that can increase wind turbine power, called INVELOX. However, there are several problems regarding to the INVELOX. This study aims to partially solve the problems of INVELOX, such as the air flow that escapes before entering the venturi and its unability to accomodate the wind directions. By using the numerical method in ANSYS Fluent software, several modifications were simulated to overcome the problems that exist in INVELOX. The simulations show that by changing the shape of INVELOX to vertical design with air guide fin modification, the speed ratio of venturi velocity to free stream speed (SR) can be stable in all directions of incoming wind with a INVELOX Vertical value of 1.17 – 1.35, INVELOX Vertical with Long Air Fin value of 1.26 – 1.36, and INVELOX Vertical with Twisted Long Air Fin value of 1,28 – 1,41. In the height installation variation, the SR value increases with height installation for all modification model.