DESIGN AND NUMERICAL SIMULATION OF GRAVITATIONAL WATER VORTEX POWER PLANT

• Main Author: Ananda Kolin, David
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/75117
• Institution: Institut Teknologi Bandung

Indonesia has great potential for usage of renewable energy to create clean and environmentally friendly energy. One of the steps that can be done is creating a micro hydro power plant. Lately, the innovation of micro hydro power plant is the Gravitational Water Vortex Power Plant (GWVPP), where the system does not require a huge area of land and investment to provide enough energy for people in remote areas. This final project will discuss the design of the GWVPP system with a capacity of 15 kW, 2.2 head and flow rate of 0.8 m3/s. The next step is designing a propeller turbine using Solidworks 2021 software. The turbine design will be combined and simulated with GWVPP using ANSYS CFX software at steady state condition to provide performance and optimal condition result of a system designed from several namely rotational speed, inlet speed, basin diameter, and outlet diameter. The design and simulation results on the propeller turbine-based GWVPP system show that there is always an optimum point for each variation, where it produces efficiency ranges from 36% to 65%. The maximum efficiency that can be achieved is 64.79%. This value is achieved at operating conditions of 30 rpm rotational speed, 0.14 m/s inlet speed, 0.7 m basin diameter, and 0.33 m basin diameter. Furthermore, analysis of pressure contour shows that cavitation occurs in the turbine and the area around the turbine