IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v17y2024i12p2996-d1417047.html
   My bibliography  Save this article

Improving the Power Efficiency of a Microwave Plasma Source by Using the Principle of a Variable-Impedance Waveguide

Author

Listed:
  • Thanaset Thosdeekoraphat

    (School of Electronic Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Supawat Kotchapradit

    (School of Electronic Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Watcharapong Bunpradit

    (School of Electronic Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Worawut Boonpeang

    (School of Electronic Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Chanchai Thongsopa

    (School of Electronic Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Samran Santalunai

    (School of Electronic Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

Abstract

Microwave plasma sources are used in various applications, but inefficiency can limit their usefulness. Researchers have investigated a new approach with which to improve efficiency by using a waveguide with a special tuner. A standard waveguide was compared to one equipped with a stub tuner, which allows for the fine-tuning of the electrical properties. The experiment used a frequency of 2.45 GHz and tested input powers of 1 kW and 1.5 kW. Experiments showed that waveguides with tuners transferred power more efficiently, with fewer reflected and more transmitted microwaves. While peak temperatures remained similar, the tuned waveguide produced a hotter plasma flame (30–60 °C) at the same distance. Notably, increasing the input power further boosted the flame temperature by 300 °C. These findings suggest that stub tuners can significantly improve the efficiency of microwave plasma sources. This paves the way for more efficient plasma generation technologies and potentially allows for applications requiring even higher power.

Suggested Citation

  • Thanaset Thosdeekoraphat & Supawat Kotchapradit & Watcharapong Bunpradit & Worawut Boonpeang & Chanchai Thongsopa & Samran Santalunai, 2024. "Improving the Power Efficiency of a Microwave Plasma Source by Using the Principle of a Variable-Impedance Waveguide," Energies, MDPI, vol. 17(12), pages 1-21, June.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:12:p:2996-:d:1417047
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/17/12/2996/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/17/12/2996/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Mateusz Wnukowski, 2023. "Methane Pyrolysis with the Use of Plasma: Review of Plasma Reactors and Process Products," Energies, MDPI, vol. 16(18), pages 1-34, September.
    2. Tomasz Rybicki & Zbigniew Stempien & Iwona Karbownik, 2021. "EMI Shielding and Absorption of Electroconductive Textiles with PANI and PPy Conductive Polymers and Numerical Model Approach," Energies, MDPI, vol. 14(22), pages 1-19, November.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      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:gam:jeners:v:17:y:2024:i:12:p:2996-:d:1417047. 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.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      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.