Novel Induction Blade Design for Horizontal Axis Wind Turbines to Improve Starting Phase: CFD and Testing Analysis

This article introduces a novel Induction Blade (IB) prototype modeled by Element Momentum (BEM) theory, which develops higher torque during the starting phase for Horizontal Axis Wind Turbines (HAWT), especially micro-turbines. The IB is composed of two parallel blades joined at their tips and roots, forming distinctive hole in space between that generates Venturi effect as air passes through. phenomenon together with extra lift generated area second blade produce valuable phase. We used Computational Fluid Dynamics (CFD) analysis to evaluate aerodynamic properties this design compared traditional same radius. prototypes were built (50W, diameter 0.62m, λ=9 speed rated 8m/s) additive manufacturing 3D printer behaviors tested small wind tunnel (square section 0.7m x 0.7m). Our results using CFD show produces up 65% without losing output power low velocity (5-8 m/s). IMPI (Mexican Institute Industrial Protection) protects shape.