Análise da eficiência energética do material polímero piezoelétrico: um novo conceito de energia renovável

Abstract

The purpose of the present study was to evaluate the application of piezoelectric materials in renewable energy generation. Thus, a platform was constructed, which consists of a small iron vertical rigid support, wherein a claw was used as a support for the piezoelectric polymer PVDF (Polyvinylidene Fluoride) LDT0-028K. To simulate the wind, a fan of six blades has been used, and many wind velocities were generating variating the distances between the piezoelectric and the airflow generator (ranging the four to seven m/s). Moreover, flexible PVC plastic materials of different configurations were used which were coupled to the piezoelectric free end to improve the deformations and obtain better results in the voltage output. In this study, it was possible to evaluate the best experimental conditions in the geometric configuration, which was the small T-shape (CGT 1) at a wind speed of 6.74 m/s, obtaining 9.40 mW of energy. The results obtained in the experiments are valid in comparison to the literature mentioned, but it is not enough to supply electricity to a rechargeable battery. However, to improve the power performance, it is suggested to use multiples elements of PVDF in series, for greater power output from a single device.