Wave Energy Converter through Piezoelectric Polymers

This note addresses the concept of wave energy conversion by means of piezoelectric material. The ocean surface waves represent an important source of energy power.A multiphysics simulation is used to focus ondifferent aspects, namely the free surface wave,the fluid-structure-interaction, the mechanical energy input to the piezoelectric material and finally the electric power output using anequivalent open circuit model. The authors designed several feasible devices which are all similar, as long as they are forced by the wave action at a characteristic wave frequency. For the sake of simplicity, a basic system is analyzed here. The amount of energy generated bythe piezoelectric materials appears very small, nevertheless some application of interest will be presented.