IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v242y2025ics0960148125000771.html
   My bibliography  Save this article

Comprehensive analysis of thermal performance & optimization over a dual-PCM ceiling-floor heating/cooling system

Author

Listed:
  • Qiao, Xu
  • Kong, Xiangfei
  • Jiang, Lina

Abstract

Phase change material (PCM), as a competent functional material for this purpose in thermal energy storage has been maintained a rapid development in recent decades. For its building indoor thermal comfort improvement ability, individual PCM application has been widely studied. However, cascaded phase change heating system possesses better quality in doing so. Consequently, for building thermal comfort enhancement, a dual-PCM ceiling-floor heating/cooling system (DPCM-CF) is proposed in this study. And the system configuration optimization has been done based on several dominant impact factors. Moreover, in order to quantitatively evaluate the system thermal behavior, principal component analysis has been conducted. Results show that with parallel connected pipes, 30-oC heat transfer fluid (HTF) circulated in Down-feed/Up-return manner, pipe pitch of 15 cm inserted at the middle layer of the 4-cm PCM panels, floor/roof PCM with 23/28 °C of phase change point, 180/200 J/g in enthalpy and 3.78/3.45 W/(m·K) in thermal conductivity, would the system performance be in optimum situation, taken former system summer optimization results into consideration as well. Besides, the indoor temperature weighs more in cooling condition compared with the heating counterpart, while for the connection type and HTF circulation, they weigh more in heating mode compared with their cooling performance.

Suggested Citation

  • Qiao, Xu & Kong, Xiangfei & Jiang, Lina, 2025. "Comprehensive analysis of thermal performance & optimization over a dual-PCM ceiling-floor heating/cooling system," Renewable Energy, Elsevier, vol. 242(C).
    • Handle: RePEc:eee:renene:v:242:y:2025:i:c:s0960148125000771
    DOI: 10.1016/j.renene.2025.122415
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148125000771
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2025.122415?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:242:y:2025:i:c:s0960148125000771. 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.