具有风波协同作用的定向自适应式三电纳米发电机
Shiming Liu1, Xilin Guo1, Jianlong Wang2,3
1School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang, Liaoning 110168, China.
ACS applied materials & interfaces
|August 22, 2024
概括
这项研究介绍了一种定向自适应性 triboelectric 纳米发电机 (DA-TENG),它利用风和水的协同作用来有效收集波浪能量. 创新的设计提高了海上设备的适应性和功率输出.
科学领域:
- 收集能源 收集能源
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
背景情况:
- 三电纳米发电机 (TENGs) 提供了能量采集的潜力,但在复杂的波浪环境中面临效率挑战.
- 现有的TENG设计往往难以有效地捕获多方向波浪能量.
- 适应性和协同的能量捕获对于提高海洋应用中的TENG性能至关重要.
研究的目的:
- 开发一个定向自适应性 triboelectric 纳米发电机 (DA-TENG) 改进波能量收集.
- 提高TENG在动态波浪环境中的适应性和协同性能.
- 探索风水协同作用的潜力,以实现高效的能源采集.
主要方法:
- 设计了一台DA-TENG,采用风扇和内部风扇形叶片电极进行方向适应.
- 集成多个发电机组以协调工作,以提高能量捕获.
- 在各种风速和波浪条件下测试了DA-TENG的性能.
主要成果:
- 在轻微的风条件下,DA-TENG实现了显著的输出电压 (374.97 V),电流 (84.77 μA) 和电荷 (622.69 nC).
- 展示了7.51W m-3的峰值功率密度,适合实际应用.
- 成功为无线温度和湿度传感器和248个LED供电,展示了其能量传递能力.
结论:
- DA-TENG有效地解决了传统TENG在多方向波浪能量捕获方面的局限性.
- 风水协同作用显著提高了波浪能量采集的适应性和效率.
- 这项技术为使用可再生波浪能源为低功耗海上设备提供动力提供了可行的解决方案.
更多相关视频
相关概念视频
Generation of Three-Phase Voltage
366
A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
As the rotor...
As the rotor...
366
Wind Turbine Machine Models
116
In the growing field of wind energy, incorporating wind turbine models into transient stability analysis is essential. Induction and synchronous machines are the primary models used, with induction machines being prevalent due to their simplicity and reliability.
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
116
Faraday Disk Dynamo
2.1K
A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
2.1K
Van de Graaff Generator
1.7K
Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
1.7K
Generator Voltage Control
137
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
137
DC Generator
699
An alternator converts mechanical energy into electrical energy that varies sinusoidally, resulting in AC current. Meanwhile, a DC generator converts mechanical energy into electrical energy, which are DC pulses with the same polarity. The construction of a DC generator is similar to that of an alternator, except that the pair of slip rings is replaced by a single split ring, also called a commutator. The commutator functions like a periodic rotary switch; it changes the contacts with the...
699


