Self-powered temperature-changing system driven by wind energy.

IF 7.3 1区工程技术 Q1 INSTRUMENTS & INSTRUMENTATION Microsystems & Nanoengineering Pub Date : 2024-09-26 DOI:10.1038/s41378-024-00741-1

Jiayu Li, Boxun Liu, Mingyang Li, Yahui Li, Wangyang Ding, Guanlin Liu, Jun Luo, Nan Chen, Lingyu Wan, Wenjuan Wei

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Abstract

Research on outdoor, mobile, and self-powered temperature-control devices has always been highly regarded. These devices can reduce energy consumption for cooling and heating, and they have broad market prospects. On this basis, a rotary disc-shaped triboelectric nanogenerator (TENG) with a maximum open-circuit voltage of 6913 V, a maximum short-circuit current of 85 μA, and a maximum transferred charge of 1.3 μC was prepared. We synthesized a ferroelectric ceramic composed of 0.15PbTiO₃-0.85PbSc_0.5Ta_0.5O₃ (0.15PT-0.85PST), which exhibited excellent electrothermal effects at room temperature. By quenching, the electrothermal effect ( $Δ$ T_max) and energy harvesting properties of the device were 1.574 K and 0.542 J/cm³, respectively. Then, for the first time, we proposed a self-powered temperature quantification control system with a rotary disc-shaped TENG. This device effectively harnessed wind and water energy, in addition to other types of energy. The system consisted of energy collecting cups, a rotating disc-shaped FEP-rabbit fur TENG, a circuit management module, and a ferroelectric ceramic chip array. Through the circuit management module, the system converted external wind energy into a high-voltage electric field at the two ends of the 0.15PT-0.85PST ceramic chip to fully stimulate the electrothermal effect. At a speed of 200 rpm, the temperature change in the insulated cup within 276 s was 0.49 K, and the volume of the insulated cup was 300 times greater than that of the 0.15PT-0.85PST ceramic chip. Compared with the results reported in previous work, the cooling and heating times were both reduced by 31%, and the temperature changes for both cooling and heating increased by 81%. Moreover, the heating and cooling temperatures of the device optimized on this basis were increased to 1.19 K and 0.93 K, respectively. The great improvement in the temperature variation performance confirmed the great potential of the device for commercialization. This research could serve as a reference for reducing energy consumption for cooling and heating, and it meets the international energy policies of carbon dioxide emission peaking and carbon neutrality.

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由风能驱动的自供电温度变化系统。

有关户外、移动和自供电温度控制设备的研究一直备受推崇。这些设备可以降低制冷和供暖的能耗，具有广阔的市场前景。在此基础上，我们制备了一种最大开路电压为 6913 V、最大短路电流为 85 μA、最大转移电荷为 1.3 μC 的旋转盘形三电纳米发电机（TENG）。我们合成了一种由 0.15PbTiO3-0.85PbSc0.5Ta0.5O3 （0.15PPT-0.85PST）组成的铁电陶瓷，它在室温下表现出优异的电热效应。通过淬火，该器件的电热效应（Δ Tmax）和能量收集特性分别为 1.574 K 和 0.542 J/cm3。随后，我们首次提出了利用旋转圆盘形 TENG 的自供电温度定量控制系统。除其他类型的能源外，该装置还能有效利用风能和水能。该系统由能量收集杯、旋转圆盘形 FEP 兔毛 TENG、电路管理模块和铁电陶瓷芯片阵列组成。通过电路管理模块，系统将外部风能转化为 0.15PT-0.85PST 陶瓷芯片两端的高压电场，充分激发电热效应。在转速为 200 rpm 时，保温杯在 276 s 内的温度变化为 0.49 K，保温杯的体积是 0.15PT-0.85PST 陶瓷芯片的 300 倍。与之前报告的结果相比，冷却和加热时间均缩短了 31%，冷却和加热的温度变化均增加了 81%。此外，在此基础上优化的设备的加热和冷却温度分别提高到了 1.19 K 和 0.93 K。温度变化性能的大幅提高证实了该装置在商业化方面的巨大潜力。这项研究可为降低制冷和制热能耗提供参考，同时也符合二氧化碳排放峰值化和碳中和的国际能源政策。

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来源期刊

Microsystems & Nanoengineering Materials Science-Materials Science (miscellaneous)

CiteScore

12.00

自引率

3.80%

发文量

123

审稿时长

20 weeks

期刊介绍： Microsystems & Nanoengineering is a comprehensive online journal that focuses on the field of Micro and Nano Electro Mechanical Systems (MEMS and NEMS). It provides a platform for researchers to share their original research findings and review articles in this area. The journal covers a wide range of topics, from fundamental research to practical applications. Published by Springer Nature, in collaboration with the Aerospace Information Research Institute, Chinese Academy of Sciences, and with the support of the State Key Laboratory of Transducer Technology, it is an esteemed publication in the field. As an open access journal, it offers free access to its content, allowing readers from around the world to benefit from the latest developments in MEMS and NEMS.