三电电磁混合纳米发电机用于收集蓝色能量并创建海洋波浪预警系统
Weichao Wang1, Yaju Zhang2, Guoxi Wu1
1School of Science, Xuchang University Xuchang 461000 China.
Nanoscale advances
|July 11, 2024
概括
研究人员开发了一种混合纳米发电机,将 triboelectric纳米发电机 (TENG) 和电磁发电机 (EMG) 结合起来,以有效地收集海洋波能量. 这一创新为自动供电的海洋波浪预警系统铺平了道路.
科学领域:
- 可再生能源可再生能源是可再生能源.
- 材料科学 材料科学 材料科学
- 海洋工程 海洋工程
背景情况:
- 海浪能量是一个巨大的,尚未开发的可再生资源.
- 目前的波浪能量采集方法由于波浪模式不规则和低频率而面临限制.
- 有效的能源转换对于开发可持续的蓝色能源解决方案至关重要.
研究的目的:
- 设计和演示一种新的混合纳米发电机,以有效地收集水波能量.
- 在混合系统中研究 triboelectric 纳米发电机 (TENG) 和电磁发电机 (EMG) 的性能.
- 探索这项技术在自动供电的海洋波浪预警系统中的潜力.
主要方法:
- 一个紧的,盒状的混合纳米发电机 (HG) 被设计出来,集成了两个TENG和两个EMG.
- 单个TENG和EMG组件的输出性能 (电压,电流,电荷,功率) 在不同的波频和振幅下被测量.
- 分析了摇摆角度对TENG和EMG输出性能的影响.
主要成果:
- 该TENG组件实现了~110V,2.3μA和50nC的最大输出,在2Hz时达到85.3μW的峰值功率.
- 该EMG组件产生的最大电压和电流分别为0.45V和1.2mA,峰值功率为95.6μW.
- 无论是TENG还是EMG输出性能都随着摆动角度的增加线性扩展,展示了强大的能量收集能力.
结论:
- 设计的混合纳米发电机有效地从水浪中收集能量,克服了不规则的波浪运动的局限性.
- 该系统的性能表明其适用于实际应用,包括为海洋监测设备提供动力.
- 拟议的波浪能量收集阵列可以实现自动供电的海洋波浪预警系统,提高海上安全和资源管理.
相关概念视频
01:10Generating Electromagnetic Radiations
2.8K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
2.8K
01:19DC Generator
725
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...
725
01:23Faraday Disk Dynamo
2.2K
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...
2.2K
01:27Induced Electric Fields: Applications
1.6K
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
1.6K
02:47Voltaic/Galvanic Cells
57.0K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
57.0K
01:10Electrical Energy
1.2K
Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.
1.2K