Abstract
A new water energy harvester module, which is composed of piezoelectric bimorph cantilevers, harvesting circuit and a shaft with 16 impellers at a center axis, was fabricated for energy harvesting application. High energy density <TEX>$Pb(Zr_{0.54}Ti_{0.46})O_3$</TEX> + 0.2 wt% <TEX>$Cr_2O_3$</TEX> + 1.0 wt% <TEX>$Nb_2O_5$</TEX> (PZT-CN) thick film obtained by tape casting method was used for the bimorph cantilever. The PZT-CN bimorph cantilever with a proof mass of 49 g exhibited extremely high output power of 22.5 mW (24 <TEX>$mW//cm^3$</TEX>) at resonance frequency of 11 Hz. In addition, the fabricated water energy harvester has a cylindrical structure with 48 bimorph cantilevers clamped at inner surface. A significantly high output power of 433 mW was obtained at a rotation speed of 120 rpm with a resistive load of <TEX>$500{\Omega}$</TEX> for the water energy harvester.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
