IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v240y2025ics096014812402202x.html
   My bibliography  Save this article

Experimental study on cooling performance of underground pipe gallery ventilation enhanced by borehole heat exchanger

Author

Listed:
  • Wei, Tong
  • Shen, Cong
  • Jiang, Haonan
  • Xu, Zijun
  • Gu, Zhaolin
  • Luo, Xilian

Abstract

The underground pipe gallery (UPG) has the potential to provide pre-cooling for building ventilation. However, maintaining a stable air supply is challenging due to fluctuations in outdoor temperatures. To address this issue, a ventilation system that employs the UPG and the borehole heat exchanger (BHE) of a ground-source heat pump as integrated cooling sources is proposed in this study. The cooling performance and climate suitability of the newly designed system are experimentally evaluated by a full-scale setup. The results show the system has remarkable re-cooling effectiveness, maintaining room temperature below 28 °C even when outdoor temperatures exceed 40 °C. The BHE significantly cools the air from the UPG, thereby stabilizing air supply parameters. The temperature of the supplied air is consistently maintained between 18.7 °C and 20.9 °C, with a supply air flow rate ranging from 494.1 m³/h to 1982.9 m³/h. Based on the findings, the recommended ventilation rate is 494.1 m³/h, and the indoor thermal comfort satisfaction exceeds 60 % for occupants meeting the requirements (24 < T < 28 °C and 40 < RH < 70 %). The proposed system offers a viable alternative to traditional energy for building air conditioning with major technical benefits, particularly in arid regions.

Suggested Citation

  • Wei, Tong & Shen, Cong & Jiang, Haonan & Xu, Zijun & Gu, Zhaolin & Luo, Xilian, 2025. "Experimental study on cooling performance of underground pipe gallery ventilation enhanced by borehole heat exchanger," Renewable Energy, Elsevier, vol. 240(C).
    • Handle: RePEc:eee:renene:v:240:y:2025:i:c:s096014812402202x
    DOI: 10.1016/j.renene.2024.122134
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S096014812402202X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2024.122134?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:renene:v:240:y:2025:i:c:s096014812402202x. 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/renewable-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.