1. A heat-triggered triboelectric nanogenerator for self-powered wireless fire alarm.
- Author
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Lin, Xiaobo, Su, Kangyu, Yang, Lanxin, Xing, Chenyang, Peng, Zhengchun, and Meng, Bo
- Subjects
TRIBOELECTRICITY ,FIRE alarms ,CLEAN energy ,POWER resources ,ELECTRONIC equipment ,SWITCHING circuits - Abstract
Power supply is playing an increasingly important role in the rapidly developing era of the Internet of Things. Achieving a sustainable and clean power supply for electronic devices is an urgent and challenging task. In this study, we present a heat-triggered triboelectric nanogenerator (TENG) and develop a self-powered fire alarm system to achieve an early warning without an external power supply. A TENG comprises a gear system that can utilize the elastic potential energy of a spring. A wax block was used as a heat trigger. When melted at high temperatures, the TENG will be triggered to work and generate considerable electric energy. Within a single operation cycle of approximately 6 s, a 22 μ F capacitor can be charged up to 3.7 V. Such electrical energy is sufficient to drive a wireless transmission module through an automatic switching circuit. Overall, this study provides a feasible approach for a self-powered wireless warning system in power-shortage areas. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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