Hery Candra, Doddy Irawan, Gunarto, Faino
Electricity is an important thing in human life. Currently, the source of electrical energy is obtained by utilizing fossil energy, such as coal and gas, which results in the longer the source of power generation, the less it will be while the need for electrical energy continues to increase due to the times and population growth. Thus, a micro-hydro power plant is a water-powered power plant that is made with the aim of meeting the need for electrical energy and as a renewable energy source that is practical to use. The vortex turbine is a micro-hydro power plant that works with a low head called a Gravitational Water Vortex Power Plant (GWVPP). The laboratory-scale Vortex turbine is called a whirlpool turbine because this turbine utilizes the input power of water that passes through the basin channel so that the water is pressurized and forms a vortex when it rotates the turbine blades, which will generate electrical energy due to the rotation of the blades. This research was conducted to find out which runners are suitable for application in laboratory-scale vortex turbines and to find out the performance of several runners, including Kaplan, Francis, and Vortex turbine runners, to determine the highest efficiency value of the types of runners so that they can be implemented on a larger scale. The research was carried out using the quantitative method by collecting data on runners that had been made with the specifications of 5 blades with a slope of 45° and a diameter of 12 mm given a constant flow rate of 240 l/min. The data taken includes torque (T), angular velocity (ω), water input power (Pa), and water output power (Pt). The data obtained will produce efficiency values for each runner, namely the Francis runner by 21%, Vortex by 21%, and Kaplan by 74%. It can be concluded that the vortex turbine is more suitable for use with Kaplan runners because these runners produce the highest efficiency compared to Francis and Vortex runners.
Renewable Energy, Turbin Vortex, Runner Kaplan, Francis, Vortex and efficiency
Cite this paper
Hery Candra, Doddy Irawan, Gunarto, Faino. (2023) Effect of Runners on Laboratory-Scale Vortex Turbine Efficiency. International Journal of Renewable Energy Sources, 8, 81-89