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An indoor air duct flow energy conversion system: Modeling and experiments

  • Fei Fei
  • , John D. Mai
  • , Wen Jung Li*
  • *Corresponding author for this work

    Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

    Abstract

    This paper presents an indoor, low-speed airflow, energy harvesting system based on aerodynamic flutter. Due to aerodynamic forces, mechanical vibrations occur when airflow passes across flexible belt-like structures. A linear electromagnetic generator has been designed to transfer this mechanical power into electricity based on Faraday's law. Based on a model which couples the aerodynamic flutter with the electromagnetic generator, the output electrical power can be estimated and optimized. The airflow from an air duct with a 0.5m x 0.5m cross-sectional area is used to drive an energy conversion device in experiments. The experimental results show that this prototype flutter energy conversion device (FECD) could provide nearly 2VRMS voltage with a 2.5m/s airflow. A set of super capacitors is used as a temporary storage element. With a power management circuit, the entire energy harvesting device can operate as a stable 3.3V DC power source during a discharging cycle. © 2013 IEEE.
    Original languageEnglish
    Title of host publication2013 IEEE International Conference on Cyber Technology in Automation, Control and Intelligent Systems, IEEE-CYBER 2013
    Pages75-80
    DOIs
    Publication statusPublished - 2013
    Event3rd Annual IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems, IEEE-CYBER 2013 - Nanjing, China
    Duration: 26 May 201329 May 2013
    https://ieeexplore.ieee.org/xpl/conhome/6691371/proceeding

    Conference

    Conference3rd Annual IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems, IEEE-CYBER 2013
    PlaceChina
    CityNanjing
    Period26/05/1329/05/13
    Internet address

    Research Keywords

    • Aerodynamic flutter
    • Indoor energy harvesting
    • Simulink modeling

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