Artículos de Revista en Ingeniería · 2025
Optimization of Vertical-Axis Hydrokinetic Turbines : Study of Various Geometric Configurations Using the Response Surface Methodology and Multi-Criteria Decision Matrices
Optimizing vertical-axis hydrokinetic turbines is essential to enhance their energy conversion efficiency and structural reliability, particularly for decentralized renewable energy applications. This study focuses on identifying the most effective turbine design by evaluating the influence of three key parameters: aspect ratio (AR), solidity (σ), and the index of revolution (I). Specifically, the study considers Gorlov-type vertical-axis turbines, known for their helical design and favorable hydrodynamic characteristics. To achieve this, fifteen turbine configurations were analyzed using a combination of two methods: response surface methodology (RSM) and multi-criteria decision matrices. Both methods converged on the same optimal turbine model, characterized by an I of 0.1, a σ of 0.40, and an AR of 1.0, demonstrating superior energy efficiency and structural robustness, as the design achieved a power coefficient (Cp) of 40.8% at a tip speed ratio (TSR) of 1.01. The integration of numerical simulations and experimental validation provides comprehensive insights into turbine behavior, ensuring reliability in practical applications. These findings advance hydrokinetic energy technologies by identifying configurations that optimize both performance and manufacturability.