Blue Energy Harvesting by Using Triboelectric Nanogenerator
| Autor: | Wei-Pang Pan, 潘維邦 |
|---|---|
| Rok vydání: | 2019 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 107 In this study, we develop a triboelectric nanogenerator combined with a crank-and-rod structure and applies it to blue energy harvesting. In the experiment, aluminum and polytetrafluoroethylene were used as the positive and negative electrode respectively attached to the slider and the slide rail, and combined with the link mechanism to convert the blade rotation caused by the water flow into a periodic motion, so that the slider connected with the connecting rod produce relative motion with the slide rails to generate electrical energy. In this study, we use the in-plane sliding mode triboelectric nanogenerator, which is easier to design than the vertical contact-separation mode triboelectric nanogenerator. The electrode on the slide rail uses a grid structure, which can make multiple frictions to increase the current output in a single motion to improve the high voltage and low current characteristics of the triboelectric nanogenerator. The addition of a spring on the slider ensures close contact of the material surface, which can improve the wear of the material caused by prolonged operation and reduce the output. Besides, compared with the traditional triboelectric nanogenerator that used to blue energy harvesting, there is a problem of sealing. In this study, the design of the linkage mechanism enables the triboelectric nanogenerator to generate electricity on the water surface to prevent water from affecting the contact of the surface of the material and causing output instability. In this study, the effects of different electrode areas, grid electrode pairs, number of friction surfaces, friction frequency, and spring constant on the output were tested. And measure the change in the output of the triboelectric nanogenerator under different loads in the optimized case. The experimental results show that the triboelectric nanogenerator can generate an open circuit voltage of 40 V, a short-circuit current of 5.3 μA, and a power density of 7.3 mW/m2. This output can effectively drive small electronic sold in the market. It is expected that this triboelectric nanogenerator can be a new form of power generation through array or size amplification. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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