Análisis experimental de torque en un aerogenerador savonius para validación de diseño

Abstract

This work presents the characterization of the performance of a low-power Savonius wind turbine developed by the AeroMat Group, based on the measurement of its torque output. To achieve this, a test bench was designed and built to evaluate wind turbines under controlled conditions. The experimental setup includes a forced-air wind generator, regulated by a frequency inverter, and a torque measurement system composed of a digital dynamometer, a lever arm, and a calibrated spring.

Tests were conducted by varying both the air flow velocity and the rotor angle, in order to analyze its response under different operating scenarios. This characterization enabled validation of the proposed design, fine-tuning of key parameters, and strengthened its potential application in rural contexts.

The results showed that the maximum torque output reached 2.42 N·m at a 45° angle of attack, decreasing significantly to 0.75 N·m at 90°, providing key data for the aerodynamic optimization of the device.