Energy management by using “noise and pressure” in generating electricity

Abstract

Noise problem and its related issues are one of the major problems which are related to our environment. Noise pollution causes diverse harmful effects on human being and it needs to be inhibited. It is hard to stop noise pollution but we can convert in another form which can be useful to our environment. Energy harvesting (also known as power harvesting or energy scavenging) is the process by which energy is imitative from external sources (e.g. solar power, thermal energy, sound energy wind energy, salinity gradients and kinetic energy), captured, and stored for small, wireless self-governing devices, like those used in wearable electronics and wireless sensor networks. A smart city is a city which functions in a sustainable and intelligent way by integrate all its infrastructures and services into a consistent whole and using intelligent devices for monitoring and control, to ensure sustainability and efficiency. In a world where population numbers are constantly rising, significantly driving the consumption of resources causing resource shortages and climate change, the incentive for innovative solutions is obvious. Urban areas, in particular, are responsible for the major part of resource consumption, instigating an increasing need to create smarter infrastructures, in search of greener and more energy efficient urban dynamics. The paper discusses the methods to utilize noise pollution for generating electricity by using piezoelectric material and way towards pollution free environment. Flexible piezoelectric materials are attractive for power harvesting applications because of their ability to withstand large amount of strains. Piezoelectric materials can convert ambient vibration energy surrounding them into electrical energy.