PIEZOELECTRIC EFFECT-BASED ENERGY MICROGENERATION

This study presents the development of a piezoelectric mat prototype focused on microgeneration of energy from mechanical pressure, targeting sustainable applications in high-traffic areas such as educational institutions. The project is based on the property of certain materials, such as lead zirconate titanate (PZT), to generate electric charge when subjected to deformation. Thus, 40 piezoelectric buzzers arranged in a matrix were used, along with rectifiers and energy storage components. The main objective was to evaluate the technical and economic feasibility of the system, considering different electrical (series, parallel, and mixed) and structural configurations. The mechanical assembly was made with MDF boards, springs, and EVA layers to protect the sensors. Tests indicated that the Schottky diode (1N5817) was the most efficient due to its low forward voltage (0.24 V). With structural and connection adjustments, the best configuration achieved a current of 176.9 µA and a voltage close to 10 V, reaching a power output of approximately 30 mW. The data showed a proportional relationship between voltage and current (Ohm's Law), with a low standard deviation (3.25 mA), suggesting system stability at a small scale. The research confirms the system's potential to power low-consumption sensors, contributing to sustainable solutions for the educational sector. The abstract should describe the objectives, context, and significance of the research, methods, results, and main conclusions of the paper in about 300 words. It should not include formulas or references to a bibliography. It must be written in only one paragraph.