基于柔性摩擦纳米发电机的水下能量收集技术研究

刘翔宇; 王岩; 王昊; 徐敏义

doi:10.11993/j.issn.2096-3920.202112016

基于柔性摩擦纳米发电机的水下能量收集技术研究

doi: 10.11993/j.issn.2096-3920.202112016

大连海事大学轮机工程学院大连市海洋微纳能源与自驱动系统重点实验室, 辽宁大连, 116026

基金项目: 国家自然科学基金(5187090340).

详细信息

通讯作者:
徐敏义(1984-), 男, 博士, 教授, 主要研究方向为海洋微纳能源与自驱动系统

中图分类号: U666.74; TJ630
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- 文章访问数: 441
- HTML全文浏览量: 86
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- 被引次数: 0
出版历程
- 收稿日期: 2021-12-17
- 修回日期: 2022-01-25
- 录用日期: 2022-08-11
- 网络出版日期: 2022-09-05

Research on Flexible Triboelectric Nanogenerator for Underwater Energy Harvesting

Marine Engineering College, Dalian Maritime University, Dalian Key Laboratory of Marine Micro/Nano Energy and Self-powered Systems, Dalian 116026, China

摘要

摘要: 由大量无线传感器节点组成的海洋分布式传感器网络对于海洋开发和保护至关重要，这些传感器以蓄电池供电为主, 难以长时间工作, 因此需研发海洋环境能量收集装置来提高分布式传感器的续航能力。文中基于摩擦纳米发电原理,提出了一种由柔性高分子薄膜以及导电油墨构成的柔性摩擦纳米发电机, 在波浪或洋流的作用下, 柔性摩擦纳米发电机产生振动, 实现机械能—电能能量转换。在建立柔性摩擦纳米发电机动力学和发电模型的基础上, 创新性地探究其分别在波浪和海流作用下的运动模态和发电性能。研究结果表明, 柔性摩擦纳米发电机的输出性能在一定范围内随着振幅、频率、流速的增加而增大, 同时并联功率随个数的增加而增大。文中提出的基于柔性摩擦纳米发电机的水下能量收集技术为实现海洋分布式传感器自供能提供了新的思路。
- 海洋分布式传感器网络 /
- 柔性摩擦纳米发电机 /
- 水下能量收集
Abstract: The marine distributed sensor network is composed of numerous wireless sensor nodes, which are crucial for ocean development and protection. These sensors are highly dependent on batteries and difficult to operate for long working times. Therefore, developing marine energy-harvesting devices is necessary for achieving in situ self-powered sensors. According to the principle of the triboelectric effect, this study proposed a flexible triboelectric nanogenerator(F-TENG) composed of flexible polymer films, which vibrates under waves and ocean currents and converts mechanical energy to electrical energy. This study established the working model of F-TENG and further explored its vibration mode and output performance. The results showed that the output performance of the F-TENG increased with the increasing amplitude, frequency, and flow rate within a certain range, and the parallel power increased with the increasing unit. This provides a new concept for realizing self-powered of marine distributed sensors.
- marine distributed sensor network /
- flexible triboelectric nanogenerator /
- underwater energy harvesting

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图 1 F-TENG水下应用场景及器件实物图

Figure 1. The application and structure diagram of F-TENG

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图 2 F-TENG运动学坐标系

Figure 2. The kinematics coordinate system of F-TENG

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图 3 F-TENG工作原理

Figure 3. The working principle of F-TENG

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图 4 F-TENG仿真电势分布图

Figure 4. The simulating potential distribution diagram of F-TENG

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图 5 F-TENG振动模型

Figure 5. Vibration model of F-TENG

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图 6 F-TENG在模拟波浪/海流条件下的实验装置图

Figure 6. The experimental apparatus of F-TENG under simulated wave/current conditions

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图 7 F-TENG在波浪条件下的振动

Figure 7. Vibration mode of F-TENG induced by wave

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图 8 F-TENG在海流条件下的振动

Figure 8. Vibration mode of F-TENG induced by current

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图 9 F-TENG在波浪/海流条件下的振动特性图

Figure 9. The vibration characteristics of F-TENG induced by wave/ current

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图 10 F-TENG在波浪条件下的输出性能

Figure 10. Output performance of F-TENG induced by wave

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图 11 F-TENG在海流条件下的输出性能

Figure 11. Output performance of F-TENG induced by current

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表 1 F-TENG振动特性实验参数列表

Table 1. Parameters in vibration experiment of F-TENG

名称	符号	备注
斯特劳哈尔数	$ {S_t} $	—
振动频率/Hz	f	—
F-TENG长度/m	l	—
F-TENG宽度/m	w	—
流速/(m·s⁻¹)	U	—
圆柱钝体横截面直径/m	D	—
圆柱钝体与F-TENG的距离	L	无量纲化, 用D表示

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参考文献(15)

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