The Influence of Flow Steering Angle on the Performance a of Cup-Bladed Kinetic Turbine

摘要

Basically, alternative energy sources will never run out in the future. Alternative energy sources provide energy wherever it is required, and convert energy from one form to another without causing pollution which can harm the environment. One of the alternative energy sources with in Indonesia is flowing water in rivers which contain huge potential of kinetic energy. If the water flow rate could be harnessed optimally for producing kinetic energy, the problem of energy crisis could be overcome. Therefore, it is important to figure out the way of improving the performance of cup-bladed kinetic turbine by varying the angle of steering flow. The objective of this research is to study the influence of flow steering angle on the performance of cup-bladed kinetic turbine. This research uses experimental method and conducts in laboratory scale. The tested kinetic turbine is limited to the flow streering angle with 8 blade, cross-sectional area of channel of 0.26 × (0.1 and 0.12) m~3, the turbine axis diameter of 110 mm, length and with of the blades, consecutively are 13 and 12 cm, flow steering angle is varied by 15°, 25°, and 35°. Kinetic turbine works in stable rotation and the stability of rotation is required to produced better quality of electricity. The observation results show that the flow steering angle influences the performance (power and efficiency) of kinetic turbine.