Abstract
Piezoelectric materials have been in use for many years; however, with an increasingconcern about global warming, piezoelectricity has gained significant importance inresearch and development for extracting energy from the environment. In this workthe voltage responses of ceramic based piezoelectric fibre composite structures(PFCs) and polymer based piezoelectric strips, PVDF (polyvinylidene fluoride),were evaluated when subjected to various wind speeds and water droplets inorder to investigate the possibility of energy generation from these two naturalrenewable energy sources for utilization in low power electronic devices. The effects ofmaterial dimensions, drop mass, releasing height of the drops and wind speed on thevoltage output were studied and the power was calculated. This work showed thatpiezoelectric polymer materials can generate higher voltage/power than ceramic basedpiezoelectric materials and it was proved that producing energy from renewable sourcessuch as rain drops and wind is possible by using piezoelectric polymer materials.
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