An acoustic-driven high-power rotary triboelectric generator

IF 6.1 2区工程技术 Q2 ENERGY & FUELS

Applied Thermal Engineering Pub Date : 2025-01-25 DOI:10.1016/j.applthermaleng.2025.125752

Hao Chen , Yupeng Yang , Junxiang Wang , Yurui Shang , Wei Tang , Guoyao Yu , Rui Yang , Ercang Luo

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Abstract

To develop a high-power electrical source, we propose a non-contact fiber-reinforced rotary triboelectric generator (NFTEG), based on which an acoustic-driven NFTEG is also developed. Systematic experiments are conducted to investigate the characteristics of NFTEG. An open-circuit voltage of 3500 V and a short-circuit current of 0.38 mA are achieved, and the initial output current is sustained even after 500,000 cycles of continuous operation. Further, the performance of NFTEG reveals significant sensitivity to mean pressure and gas species variations, with the optimal mean pressure depending on gas species. A maximal output voltage of 3520 V is obtained in CO₂, revealing CO₂ as a proper gas for NFTEG. Importantly, in the experiments with the acoustic-driven NFTEG, a time-averaged electric power output as high as 1.46 W is obtained with 0.5-MPa CO₂ gas and an acoustic frequency of 35 Hz. These results shed light on the feasibility of the acoustic-driven NFTEG as a high-power electrical source, with the advantage of high reliability.

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来源期刊

Applied Thermal Engineering 工程技术-工程：机械

CiteScore

11.30

自引率

15.60%

发文量

1474

审稿时长

57 days

期刊介绍： Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application. The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.