The Possibility of a High-Efficiency Wave Power Generation System Using Dielectric Elastomers

Seiki Chiba,Kohei Arakawa,Changqing Jiang,Mikio Waki,Mitsugu Uejima,Kazuhiro Ohyama,Makoto Takeshita

doi:10.3390/en14123414

Abstract

Power generation using dielectric elastomer (DE) artificial muscle is attracting attention because of its light weight, low cost, and high-efficiency. Since this method is a system that produces electricity without emitting carbon dioxide nor using rare earths, it would contribute to the goal of environmental sustainability. In this paper, the background of DEs, the associated high efficiency wave energy generation (WEG) systems that we developed using DEs, as well as the latest development of its material are summarized. By covering both the challenges and achievements, this paper discusses the opportunities to build the foundation of an energy recycling society through the usage of these WEGs. To make these possibilities commercially successful, the advantages of DEs need to be integrated with traditional technologies. To achieve this, the method of using DEs alone and a system used in combination with an oscillating water column were also considered. Finally, the current status and future of DE generators (DEGs) are discussed.

Highlights

Most commercial power generation systems use electromagnetic induction in which the generator is rotated by mechanical energy
Some high-efficiency wave energy generation (WEG) systems that 2 of 17 have been developed using dielectric elastomer (DE) are summarized and the opportunity to build the foundation of an energy recycling society using these DE generators (DEGs) is considered
A buoy generator equipped with DEs could be able to generate electricity with high efficiency

Summary

Introduction

Most commercial power generation systems use electromagnetic induction in which the generator is rotated by mechanical energy. Sources for utilizing renewable energy generate motion over a wide range of low frequencies, so power generation systems that use electromagnetic induction must include mechanical or hydraulic transmissions, making the system more complex. Some high-efficiency wave energy generation (WEG) systems that 2 of 17 have been developed using DEs are summarized and the opportunity to build the foundation of an energy recycling society using these DE generators (DEGs) is considered. (3) When the mechanical energy of the membrane decreases, the elastic resilience of the membrane acts to restore the original thickness and reduce the area At this time, the electric charge is pushed out toward the electrode. In order to achieve zero carbon dioxide emissions in 2050 [3], large-scale offshore wave power generation (k) is indispensable, and the best scenario is to convert the power obtained there into hydrogen and transport it to land [41]

Buoy Power Generation Loaded with Dielectric Elastomer Generator

Production of Hydrogen

Dielectric Elastomer Material

Findings

Electrode Material Used for Dielectric Elastomers