PERFORMANCE ANALYSIS OF SDT SHIELDED PIEZO (TE1000288-0) AND LDT1-028K PIEZOELECTRIC TRANSDUCERS IN ENERGY HARVESTING FROM A CHILLER PLAN

Abstract

In recent years, the harvesting of energy from noise pollution has emerged as a promising field of research. Industrial activities, such as chiller operations, manufacturing equipment, and construction, naturally generate significant noise, which can be difficult to isolate from the surrounding environment. Nevertheless, there is a lack of research on piezoelectric-based noise energy harvesting. Further investigations are needed to optimise system design to achieve higher energy conversion efficiency. This paper presents the performance analysis of piezoelectric transducers for harvesting energy from noise generated at a chiller plant. The sound levels on the piezoelectric devices were experimentally measured at a range of 82-100 dB, corresponding to the noise zones classified in the chiller plant. Two types of piezoelectric transducers, namely LDT1-028K and SDT-TE1000288-0, both fabricated from polyvinylidene fluoride, were investigated as energy harvesters. The experimental setup included a noise harvesting system consisting of a capacitor and a rectifier. The results indicate that LDT1-028K exhibits superior energy harvesting efficiency compared to the SDT-TE1000288-0 piezo sensor, achieving a maximum voltage output response of 0.0258 mV 0.0258 V at 95 dB. The results show that noise pollution from sources such as chiller operations, industrial machinery, and construction activities can be converted into usable electrical energy. By harnessing and utilising unregulated noise, this approach offers a promising solution for powering compact electronic devices, including mobile phones, monitoring sensors, and industrial appliances.