IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v377y2025ipas030626192401777x.html
   My bibliography  Save this article

A piezoelectric energy harvester based on center of gravity shift

Author

Listed:
  • Li, Qizhou
  • He, Lipeng
  • Lv, Xingqian
  • Liu, Zheming
  • Li, Zhenheng
  • Fan, Wei

Abstract

A piezoelectric energy harvester based on center of gravity shift is proposed in this paper. The structure uses the external excitation to cause the internal center of gravity to shift, to realize the capture and transformation of the random direction excitation. Change the height of the support column to adjust the tilt of the turntable, increase the number of metal balls to increase the weight of the turntable and the inertia of the turntable. Test the performance output of the structure under different variables and compare to get the best combination of variables. The experimental results show that the maximum voltage is 12.67 V and the maximum power is 1.553 mW when the support column height is 75 mm and the number of metal balls is 15. Under the optimal variable combination, the power supply capability of the structure is verified. The results show that the structure can supply power stably to sensors and 40 LEDs. The performance of the device is verified in real water flow environment. The esp32 was powered by a 40mAh button battery, and the results showed that the structure could extend the battery life of the button battery from 562 min to 589 min. As a floating energy device, the structure can improve the endurance of traditional batteries to a certain extent.

Suggested Citation

  • Li, Qizhou & He, Lipeng & Lv, Xingqian & Liu, Zheming & Li, Zhenheng & Fan, Wei, 2025. "A piezoelectric energy harvester based on center of gravity shift," Applied Energy, Elsevier, vol. 377(PA).
    • Handle: RePEc:eee:appene:v:377:y:2025:i:pa:s030626192401777x
    DOI: 10.1016/j.apenergy.2024.124394
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S030626192401777X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2024.124394?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:377:y:2025:i:pa:s030626192401777x. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.