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Bubble energy harvesting suitable for weak gas sources using bubble stream release scheme

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  • Guan, Zhibin
  • Li, Ping
  • Wen, Yumei
  • Du, Yu
  • Wang, Guoda

Abstract

The subsea observation network can provide a window for human underwater exploration, but existing power solutions fail to provide sustainable and maintenance-free power for its widespread nodes. The ocean contains a vast amount of bubble potential energy, which has yet to be extracted as an energy source. Existing bubble energy harvesting systems rely heavily on the considerable number of bubbles to generate high enough velocity, incapable of fully utilizing widely distributed weak gas sources. In this work, we propose a bubble stream release scheme specifically designed for weak gas sources, based on the threshold matching principle of the energy harvesting system. Compared to systems that cannot harvest any energy from weak gases, we use a large bubble to start the system and the following small bubbles can generate electricity that otherwise would be wasted. In a system with a height of 1.6 m, the energy density of the bubble stream release scheme reaches 119.31 mJ/L, which is 7.6 times higher than that of the conventional scheme. The advantages of the bubble stream release scheme become more significant as the system height increases. This research allows abundant weak gas sources to become a promising energy source for subsea observation network nodes, accelerating the development of the smart ocean.

Suggested Citation

  • Guan, Zhibin & Li, Ping & Wen, Yumei & Du, Yu & Wang, Guoda, 2023. "Bubble energy harvesting suitable for weak gas sources using bubble stream release scheme," Applied Energy, Elsevier, vol. 349(C).
    • Handle: RePEc:eee:appene:v:349:y:2023:i:c:s0306261923009844
    DOI: 10.1016/j.apenergy.2023.121620
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    References listed on IDEAS

    as
    1. Guan, Zhibin & Li, Ping & Wen, Yumei & Du, Yu & Wang, Yao, 2022. "Efficient bubble energy harvesting by promoting pressure potential energy release using helix flow channel," Applied Energy, Elsevier, vol. 328(C).
    2. Guan, Zhibin & Li, Ping & Wen, Yumei & Du, Yu & Han, Tao & Ji, Xiaojun, 2021. "Efficient underwater energy harvesting from bubble-driven pipe flow," Applied Energy, Elsevier, vol. 295(C).
    3. Liu, Mingyi & Qian, Feng & Mi, Jia & Zuo, Lei, 2022. "Biomechanical energy harvesting for wearable and mobile devices: State-of-the-art and future directions," Applied Energy, Elsevier, vol. 321(C).
    4. Li, Yunfei & Ma, Xin & Tang, Tianyi & Zha, Fusheng & Chen, Zhaohui & Liu, Huicong & Sun, Lining, 2022. "High-efficient built-in wave energy harvesting technology: From laboratory to open ocean test," Applied Energy, Elsevier, vol. 322(C).
    5. Zhu, Mingkang & Zhang, Jiacheng & Wang, Zhaohui & Yu, Xin & Zhang, Yuejun & Zhu, Jianyang & Wang, Zhong Lin & Cheng, Tinghai, 2022. "Double-blade structured triboelectric–electromagnetic hybrid generator with aerodynamic enhancement for breeze energy harvesting," Applied Energy, Elsevier, vol. 326(C).
    6. Wijewardhana, K. Rohana & Ekanayaka, Thilini K. & Jayaweera, E.N. & Shahzad, Amir & Song, Jang-Kun, 2018. "Integration of multiple bubble motion active transducers for improving energy-harvesting efficiency," Energy, Elsevier, vol. 160(C), pages 648-653.
    7. Wijewardhana, K. Rohana & Shen, Tian-Zi & Song, Jang-Kun, 2017. "Energy harvesting using air bubbles on hydrophobic surfaces containing embedded charges," Applied Energy, Elsevier, vol. 206(C), pages 432-438.
    8. Fang, Shitong & Chen, Keyu & Lai, Zhihui & Zhou, Shengxi & Liao, Wei-Hsin, 2023. "Analysis and experiment of auxetic centrifugal softening impact energy harvesting from ultra-low-frequency rotational excitations," Applied Energy, Elsevier, vol. 331(C).
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