Enhancing Low-Velocity Water Flow Energy Harvesting of Triboelectric–Electromagnetic Generator via Biomimetic-Fin Strategy and Swing-Rotation Mechanism,ACS Energy Letters

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Enhancing Low-Velocity Water Flow Energy Harvesting of Triboelectric–Electromagnetic Generator via Biomimetic-Fin Strategy and Swing-Rotation Mechanism
ACS Energy Letters ( IF 19.3 ) Pub Date : 2022-11-03 , DOI: 10.1021/acsenergylett.2c01908
Sheng Zhang _{1,

2} , Zhaoxu Jing ₁ , Xinxian Wang ₁ , Kangqi Fan ₁ , Hongwei Zhao ₃ , Zhong Lin Wang _{1,

2,

4} , Tinghai Cheng _{1,

2}

Affiliation

A general problem is that the energy harvesting of low-velocity rivers closely related to human life is difficult. Herein, a soft-bionic-fin structure triboelectric–electromagnetic generator (SF-TEG) with swing-rotation mechanism is proposed. It consists of a bionic fin-type soft body and a power generation part including the triboelectric nanogenerator (TENG) and electromagnetic generator (EMG). Specifically, the soft body driven by the vortex effect acquires swing, which brings the TENG to obtain oscillation and then drives the EMG to realize water flow energy harvesting. The TENG and EMG attain the output voltages of 143 to 203 V and 4.6 to 7.7 V, respectively, under flow velocities from 0.34 to 0.96 m/s. The output voltages of the TENG and EMG retain about 98% and 100%, respectively, after 4 h of continuous work. Additionally, the SF-TEG can harvest water flow energy from open channels to power sensors to provide temperature, humidity, and light intensity for greenhouses.

中文翻译：

通过仿生鳍策略和摆动旋转机制增强摩擦电磁发电机的低速水流能量收集

一个普遍的问题是与人类生活密切相关的低流速河流的能量收集困难。在此，提出了一种具有摆动-旋转机制的软仿生鳍结构摩擦电-电磁发电机（SF-TEG）。它由仿生鳍状软体和包括摩擦纳米发电机（TENG）和电磁发电机（EMG）在内的发电部分组成。具体来说，涡流效应驱动的软体获得摆动，使TENG获得振荡，进而驱动EMG实现水流能量收集。在 0.34 至 0.96 m/s 的流速下，TENG 和 EMG 的输出电压分别为 143 至 203 V 和 4.6 至 7.7 V。在连续工作 4 小时后，TENG 和 EMG 的输出电压分别保持在 98% 和 100% 左右。此外，

更新日期：2022-11-03

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