Vortex Generator Design for Electrical Energy Harvesting With Piezoelectric in Rivers

Abstract

Nowadays, technology and progress in parallel with the energy needs of the increasing population and affluence are increasing day by day with the science and alternative energy production methods are investigated to meet the growing energy needs. To find solutions to the growing energy needs in this study; closed system flow channel plates inserted into the vortex generators establishing a turbulent flow of electricity from the piezoelectric material generated vibration is to be developed. Within the scope of the specified study; vertically in the design of the turbulence value of fluid through the vortex generators made four different Reynolds number can be increased and the channel plate eluted with a piezoelectric material disposed of in two different distances. The results of the experimental studies designed and produced with the vortex generating plate were obtained numerically with the HAD (Computational Fluid Dynamics) simulation program and thus, the boundary conditions for the numerical studies on the same subject were defined after this study. As a result of this study; it was observed that the best energy harvesting efficiency was obtained with the piezoelectric material positioned vertically at the number of 30825 Reynolds and when the distance between the piezoelectric material and the vortex generator plate was 65 mm, the value of 0.017 V voltage and 4.82 J / kg Turbulent Kinetic Energy value was obtained.