Análise experimental de um gerador de energia piezoelétrica rotacional que aproveita o potencial eólico

Abstract

Considering the need to create new sustainable electricity generating means, this project goals to prototyping a piezoelectric energy generating system with wind power. For the development of the prototype, an additive machining process was used through a 3D printer and piezoelectric transducers, while IoT platform objects were used for data collection and analysis. The design development process involves adding a sheet at the end of the piezoelectric transducer and adding mass to find larger deflections. The prototype takes advantage of the wind potential for a rotational movement on its central axis and the excitation produces favorable and contrary deflections to the direction of the wind that strikes the surface of the added leaf. This work found satisfactory results regarding the energy generation with powers varying up to approximately 5 μW, and on the use of the transducers movement with incidence winds up to 6 m/s. At the final of the experiment it was found that the incidence wind speed, speed of rotation and addition of mass at the end of the structure intensified the degree of deflection of piezoelectric transducer. It presents to the academic community an alternative way of working with piezoelectric energy generators, even with limitations on the resources to be used.