Journal
NANO ENERGY
Volume 95, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2022.106990
Keywords
Energy harvesting; Wind energy; Self-powered sensor; Self-regulation strategy
Categories
Funding
- National Natural Science Foundation of China [12172127]
- Hunan Province Science and Technology Innovation Program [2020JJ3019, 2019RS2044]
- Key Project of Scientific Research Project of Hunan Provincial Department of Education [21A0463]
Ask authors/readers for more resources
This paper proposes a self-regulation strategy for a triboelectric nanogenerator (TENG-SS) to achieve a self-powered wind-speed sensor. By rationally designing the centrifugal and nonlinear magnetic forces, the separation and contact degrees of the functional materials of TENG can be automatically adjusted for different wind speeds. Experimental results show that the proposed TENG-SS exhibits better performance and robustness in a natural wind environment.
Small wind harvesting can be integrated with sensors for self-powered environmental ecological monitoring, climate monitoring, natural disaster monitoring and on-site infrastructure monitoring, which is of great importance for protecting and improving the living environment of human beings. However, the randomness and irregularity of wind seriously limit the application of wind energy harvesting and self-powered sensing technology. In this paper, a self-regulation strategy for triboelectric nanogenerator (TENG-SS) is proposed and a self powered wind-speed sensor is achieved. By rationally designing the centrifugal and nonlinear magnetic forces, the separation and contact degrees of the functional materials of TENG can be adjusted automatically for different wind speeds. When the wind speed is low, the aerodynamic force is small, and the frictional resistance is also small due to self-regulation, the device is easy to start, and the wear is small; at high wind speed, the aerodynamic force overcomes greater frictional resistance to generate more electricity. Based on the working principle of TENG-SS, a dynamic model is established and verified experimentally, and the influence of the key parameters on the performance of the TENG-SS is analyzed. Furthermore, the prototypes of TENG with and without the self-regulation strategy are compared in a natural wind environment for 21,600 s, which proves that the proposed TENG-SS exhibits better performance and robustness. The proposed TENG-SS is used for self powered wind speed measurements and wireless information transmission. This study provides a new perspective for improving the performance of TENG in the natural environment through self-regulation strategy.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available