Analysis of the Effect of Blade Profile on the Performance of Wells Turbine as Wave Energy Converter with CFD Method Muhammad Anis Mustaghfirin (a*), Jeheskiel Surbakti (b), Niki Veranda Agil Permadi (b)
a) Sustainable Energy Engineering Study Program - Shipbuilding Institute of Polytechnic Surabaya
*mustaghfirin[at]ppns.ac.id
b) Marine Engineering Study Program - Shipbuilding Institute of Polytechnic Surabaya
Abstract
Oscillating water column (OWC) is one of power generator devices that converts ocean wave energy into electrical energy. The motion of ocean waves will push the air in the OWC column and rotate the Wells Turbine connected to the generator to produce electricity. Previous research analyzed the performance of Wells Turbine with NACA 0015 blade profile. However, the torque coefficient (C_T) value generated by the blade profile was not optimal and could still be developed with several variations. Based on these conditions, this research is proposed to analyze the influence of blade profiles on the Wells Turbine performance using the Computational Fluid Dynamics (CFD) method. Various blade profiles are utilized such as NACA 0012, NACA 0015 and NACA 0018 accompanied by chord lengths of 100 mm, 125 mm, and 150 mm. The result shows that NACA 0018 blade profile with 150 mm chord length improves the torque coefficient (C_T) and power coefficient (C_P) 36.28% and 1.04%, respectively, compared to other configurations
Keywords: Ocean Energy, Oscillating water column, Well Turbine, NACA
