Energy Reports (Nov 2022)
Research on wave energy collection based on swing ship triboelectric nanogenerator
Abstract
Wave energy has the advantages of huge energy storage and high energy flow density, and it is one of the most promising Marine renewable resources. In this paper, a design method based on swing ship type triboelectric nanogenerator (ST-TENG) is proposed to collect low-frequency wave energy. This swing ship type TENG (ST-TENG) contains three sets of triboelectric nanogenerator, consisting of internal and external ship type devices with pasted electrodes and independent rollers. Combined with the power generation theory of two working modes of free-standing layer and vertical contact separation and COMSOL electrostatic simulation, the operating principle of the device is clarified. Through the rolling of the roller in the built-in ship and the swing of the built-in ship, the wave energy can be effectively collected and transformed into electric energy. In addition, through the comparative experiment, the influence of different influencing factors on the output performance of ST-TENG is quantitatively analyzed. The experimental results show that for the internal structure parameters, ST-TENG has the best output capacity in the case of polytetrafluoroethylene (PTFE) with thickness of 0.3 mm, solid cylinder and adding foam tape. Under external working conditions, 1.5 Hz is closest to the resonant frequency of the ST-TENG, and the amplitude increases from 30 mm to 60 mm, which improve the power generation performance. In addition, ST-TENG can illuminate at least 100 LEDs under normal conditions and quickly charge different capacitors to a certain voltage. Therefore, the design of ST-TENG provides new ideas for large-scale blue energy collection.
