IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v283y2023ics0360544223025173.html
   My bibliography  Save this article

High-performance magnetic thermal switch based on MnFe2O4/Ethylene Glycol:Water refrigerant dispersion

Author

Listed:
  • Andrade, Vivian M.
  • Fernandes, Cláudia R.
  • Teixeira, Joana S.
  • Pereira, Clara
  • Pires, Ana L.
  • Silva, Daniel J.
  • Ventura, João
  • Oliveira, Joana

Abstract

The use of magnetic nanoparticles for the remote control of heat transfer in electronic devices can overcome the current limitations of appliance engineering. In this work, we demonstrate that a thermal switch based on a low-cost and stable MnFe2O4/Ethylene Glycol:Water (MFO/EG:W) dispersion can increase the span temperatures as high as 60% in the 0.01–0.60 Hz operating frequency range under the same heat supply for different recipient filling ratios (FR). Under the optimum condition of FR = 80%, the efficiency of our new MFO/EG:W colloidal dispersion is twice the obtained for the commercial Fe3O4/paraffin oil fluid. From numerical calculation, we demonstrate that the improved heat exchange efficiency relates to the three-steps effective thermal conductivity variation during operation, expanding the contact time between the heat and cold sources. Thus, the combination of an EG:W refrigerant solution and superparamagnetic MFO nanoparticles with high saturation magnetization allows their use for heat management control of electronic systems for long operation periods.

Suggested Citation

  • Andrade, Vivian M. & Fernandes, Cláudia R. & Teixeira, Joana S. & Pereira, Clara & Pires, Ana L. & Silva, Daniel J. & Ventura, João & Oliveira, Joana, 2023. "High-performance magnetic thermal switch based on MnFe2O4/Ethylene Glycol:Water refrigerant dispersion," Energy, Elsevier, vol. 283(C).
    • Handle: RePEc:eee:energy:v:283:y:2023:i:c:s0360544223025173
    DOI: 10.1016/j.energy.2023.129123
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544223025173
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2023.129123?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:energy:v:283:y:2023:i:c:s0360544223025173. 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.journals.elsevier.com/energy .

    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.