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Effect of magnetic field on output performance of magnetic liquid vibration energy harvester

Xiaorui Yang (Hebei University of Science and Technology, Tianjin, China)
Ying Chen (Hebei University of Technology, Tianjin, China)
Yan Zhang (Hebei University of Science and Technology, Tianjin, China)
Wenrong Yang (Hebei University of Technology, Tianjin, China)

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering

ISSN: 0332-1649

Article publication date: 31 May 2022

Issue publication date: 12 January 2023

34

Abstract

Purpose

The purpose of this study is to develop a friction-type energy-harvesting device based on magnetic liquids (MLs). This MLs energy-harvesting device combines MLs with a triboelectric nanogenerator (TENG), reducing the friction thermal effect to improve the conversion efficiency and working frequency band.

Design/methodology/approach

First, the motion equation of the MLs is calculated using the Bernoulli and fluid continuity equations. Second, the sloshing process of an ML in a container is simulated using the finite element simulation method, and the magnetic field distribution of the permanent magnet in the MLs is calculated. Then, the output characteristic of the ML-TENG is deduced theoretically, and the influencing factors of the output voltage are analyzed. Finally, the output voltage of the MLs energy-harvesting device was tested experimentally, and the influence of the magnetic field on the output voltage was tested.

Findings

This study proposes a vibration energy harvesting device based on MLs. The output voltage of the device was obtained through simulation and experimental tests, and the effect of the magnetic field on the output voltage was obtained.

Originality/value

This study provides a method to convert vibration energy into electrical energy using the magnetic response and fluid characteristics of MLs, and the availability of the device is verified by simulation and experiment. This energy-harvesting device exhibits less loss and a more sensitive response.

Keywords

Acknowledgements

This work was supported by the Natural Science Foundation of Hebei Province, China, under Grant E2020208039.

Citation

Yang, X., Chen, Y., Zhang, Y. and Yang, W. (2023), "Effect of magnetic field on output performance of magnetic liquid vibration energy harvester", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 42 No. 1, pp. 38-47. https://doi.org/10.1108/COMPEL-02-2022-0075

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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