Xia Yang, Tian Yun, Zhang Lanbin, Ma Zhihao, Dai Huliang, Meng Bo, Peng Zhengchun
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
Micromachines (Basel). 2021 Mar 29;12(4):366. doi: 10.3390/mi12040366.
We present an optimized flutter-driven triboelectric nanogenerator (TENG) for wind energy harvesting. The vibration and power generation characteristics of this TENG are investigated in detail, and a low cut-in wind speed of 3.4 m/s is achieved. It is found that the air speed, the thickness and length of the membrane, and the distance between the electrode plates mainly determine the PTFE membrane's vibration behavior and the performance of TENG. With the optimized value of the thickness and length of the membrane and the distance of the electrode plates, the peak open-circuit voltage and output power of TENG reach 297 V and 0.46 mW at a wind speed of 10 m/s. The energy generated by TENG can directly light up dozens of LEDs and keep a digital watch running continuously by charging a capacitor of 100 μF at a wind speed of 8 m/s.
我们展示了一种用于风能收集的优化型颤振驱动摩擦纳米发电机（TENG）。详细研究了该TENG的振动和发电特性，实现了3.4 m/s的低切入风速。研究发现，风速、膜的厚度和长度以及电极板之间的距离主要决定了聚四氟乙烯（PTFE）膜的振动行为和TENG的性能。通过优化膜的厚度和长度以及电极板的距离，TENG在10 m/s风速下的峰值开路电压和输出功率分别达到297 V和0.46 mW。在8 m/s风速下，TENG产生的能量可直接点亮数十个发光二极管（LED），并通过对100 μF的电容器充电使数字手表持续运行。
