Electric Generators Using Dielectric Elastomers Driven by Karman Vortex in Water Flow

Abstract

This study focuses on the electric power generation performance of the system using the dielectric elastomer (DE). A simple experimental model is fabricated to test in a passing water tank in order to investigate the performance and feasibility of the small hydroelectric generation system using DE. This system is driven by Karman vortex in the wake of a cylinder fixed in water flow. The characteristics of DEs can be utilized for producing electric power effectively. The wing, which is an important part in the generation system to convert fluid energy into mechanical energy and is set behind the cylinder, vibrates due to the pressure caused by

Recent Development of Dielectric Elastomer Transducers and Potential Applications

“…After that, by talking with them, the difference in the vibration of the abdomen can be seen, so discrimination/guidance becomes possible (see Figure 9). Similar to the DEA, the DEG is now mainly a small or medium-sized device, but using the Karman flow, a generator that can generate power even with weak wind and slight water flow has been developed (see Figure 10) [49]. In addition, as shown in Figure 11, power generation is possible even with a fairly gentle current such as that flowing along the side of a rice field.…”