IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v325y2025ics0360544225018122.html
   My bibliography  Save this article

Optimization on thermal performance of the cavity-shaped porous solar receivers

Author

Listed:
  • Liu, Yishuo
  • Dai, Guilong
  • Yang, Yijian
  • Mu, Longkun

Abstract

This study investigates the thermal performance of cavity-shaped porous solar receivers (C-PSR) designed to reduce peak solid temperature and re-radiation losses by optimizing the matching between the heat transfer fluid mass velocity and concentrated solar flux. In this study, a C-PSR prototype was fabricated and evaluated on an indoor sun simulator platform to validate the heat transfer model. Orthogonal optimization reveals that the single-cavity PSR(SC-PSR) with a divergent cavity minimizes re-radiation losses, the optimal double-cavity PSR(DC-PSR) features the secondary opening radius (R3) equal to the first bottom radius (R2), the secondary bottom radius (R4) is half of the primary cavity's opening radius (R1) and a total cavity depth (L1+L2) is half of the total length(L). Compared to the solid porous solar receiver, the thermal efficiency of the optimal SC-PSR increases by 21.61 %, while the peak solid temperature decreases by 491.19 K at a mass flow rate of 5 g/s. Furthermore, the thermal efficiency of the optimal DC-PSR increases by 21.48 % and the peak solid temperature decreases by 704.89 K than that of S-PSR. This paper presents an innovative approach to enhance the thermal performance of solar receivers.

Suggested Citation

  • Liu, Yishuo & Dai, Guilong & Yang, Yijian & Mu, Longkun, 2025. "Optimization on thermal performance of the cavity-shaped porous solar receivers," Energy, Elsevier, vol. 325(C).
    • Handle: RePEc:eee:energy:v:325:y:2025:i:c:s0360544225018122
    DOI: 10.1016/j.energy.2025.136170
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225018122
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.136170?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:325:y:2025:i:c:s0360544225018122. 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.