Traditional energy sources are progressively moving toward depletion, resulting in a growing scarcity of energy driven by demand. In contrast, the realm of acoustic energy harvesting remains relatively unexplored, particularly within enclosed environments. In this work, we proposed a novel piezoelectric energy harvesting system, enhanced with various circuit components such as operational amplifiers and voltage quadruplers. Piezoelectric transducers are a type of electro acoustic transducer that convert the electrical charges triggered by some forms of mechanical vibrations like sound into energy. The core of the system relies on the utilization of piezoelectric technology to transform untapped sound energy into electrical energy. This innovative energy harvesting approach holds the promise of enhancing the quality of sound conditioning within enclosed spaces. Furthermore, the proposed methodology serves to mitigate the risk of noise-induced trauma, which has the potential to cause detrimental long-term effects. It is also cascade into a transformative trajectory, offering sustainable energy harvesting avenues and fostering the amelioration of soundscapes within the tapestry of confined environs. The observations made increased the efficiency of the system by 6%, and the range is increased four times. In our experiments, we obtained a higher voltage of around 12 V for a theater setup with sound levels between 70 and 90 dB, which surpasses the existing results.
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2023
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