IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v330y2025ics0360544225024818.html
   My bibliography  Save this article

Research on the performance of thermoelectric generation system for self-powered devices in smart heating system

Author

Listed:
  • Wang, Bing
  • Lan, Yuncheng
  • Lu, Junhui
  • Wang, Suilin

Abstract

Smart heating is important to build a resilient smart city. Power supply in the smart heating system is the key to guarantee operating safety. The lithium battery is a convenient way to power devices in the smart heating system, but it needs to be replaced periodically and cannot continuously supply power. In this paper, the thermoelectric generation (TEG) system is applied to smart heating system by using the temperature difference between the supply and return water of the heating network, which can achieve self-powered. This paper establishes a mathematical model of TEG system for self-powered devices and builds an experimental rig to verify the accuracy of the numerical model. The effects of load resistance/internal resistance, heat exchanger surface area/module area, and geometry of thermoelectric leg on the power generation performance of TEG system are investigated. The results show that when the load resistance/internal resistance (RL/Rin) exceeds 1, the output performance of TEG system is optimal. Meanwhile, optimal RL/Rin at maximum output power increases as the contact thermal resistance rises. Increasing the heat exchanger surface area/module area (Ahx/Amo) has no impact on improving the output power of TEG system. As the height of thermoelectric leg increases, there exists an optimal height to maximize the output power and output efficiency.

Suggested Citation

  • Wang, Bing & Lan, Yuncheng & Lu, Junhui & Wang, Suilin, 2025. "Research on the performance of thermoelectric generation system for self-powered devices in smart heating system," Energy, Elsevier, vol. 330(C).
    • Handle: RePEc:eee:energy:v:330:y:2025:i:c:s0360544225024818
    DOI: 10.1016/j.energy.2025.136839
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225024818
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.136839?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:330:y:2025:i:c:s0360544225024818. 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.