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Flag-type hybrid nanogenerator utilizing flapping wakes for consistent high performance over an ultra-broad wind speed range

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اقرأ أكثر حفظ في قائمتي
  • المؤلفون: Dong, Liwei; Tang, Qian; Zhao, Chaoyang; Hu, Guobiao; Qu, Shuai; Liu, Zicheng; Yang, Yaowen
  • نوع التسجيلة:
    Electronic Resource
  • الدخول الالكتروني :
    http://repository.hkust.edu.hk/ir/Record/1783.1-133365
    https://doi.org/10.1016/j.nanoen.2023.109057
    http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2211-2855&rft.volume=119&rft.issue=109057&rft.date=2024&rft.spage=&rft.aulast=Dong&rft.aufirst=&rft.atitle=Flag-type+hybrid+nanogenerator+utilizing+flapping+wakes+for+consistent+high+performance+over+an+ultra-broad+wind+speed+range&rft.title=NANO+ENERGY
    http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=001112673700001
    http://www.scopus.com/record/display.url?eid=2-s2.0-85176504334&origin=inward
  • معلومة اضافية
    • Publisher Information:
      Elsevier 2024
    • نبذة مختصرة :
      Fluttering of regular flags and flapping of inverted flags in the wind serve as the foundational principles of flagtype nanogenerators (FNGs). However, FNGs relying on a single aerodynamic behavior exhibit significant power output only within a limited spectrum of wind speeds, posing a challenge to their robustness in scenarios with intensely fluctuating wind. In this paper, we propose a novel hybrid scheme aimed at harnessing the synergistic potential of two aerodynamic behaviors to enhance the performance of FNGs and broaden their operational wind speed ranges. A flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) is developed with the integration of flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). To overcome the limited operational wind speed range, flapping PEFs are configured in an array format, optimized through fluid-solid coupled simulations. The rear TEF leverages the fluttering motion of a polytetrafluoroethylene (PTFE) membrane, which intermittently contacts and separates from conductive textiles positioned on the inner surface of the baffles. A noteworthy feature is the innovative "back-to-back" design, which utilizes the flapping wakes generated by PEFs to intensify the fluttering of the PTFE membrane, resulting in a remarkable boost in power generation of up to 132 times and achieving a maximum peak power output of 5400 mu W. The FTPNG offers consistent high performance, with an average output of exceeding 200 mu W over an ultra-broad wind speed range of 4.7-14.6 m/s, while the complete operational range is 3.7-15 m/s. It also attains a considerable average power output of 850 mu W at 7.8 m/s, marking a significant advancement compared to other FNGs. Finally, in demonstration tests, the FTPNG can light 252 LEDs and showcases the capabilities of PEF array and TEF to independently power a wireless sensor node (WSN), highlighting its significant potential for applications in the Internet of Things and various
    • الموضوع:
      Wind energy harvesting; Flag-type; Hybrid nanogenerator; Wake effect; Wireless sensor node; Article
    • Availability:
      Open access content. Open access content
    • Note:
      English
    • Other Numbers:
      HNK oai:repository.hkust.edu.hk:1783.1-133365
      Nano Energy, v. 119, January 2024, article number 109057
      2211-2855
      2211-3282
      1422562174
    • Contributing Source:
      HONG KONG UNIV OF SCI & TECH, THE
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1422562174
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