IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v313y2024ics036054422403706x.html
   My bibliography  Save this article

Research on optimization of compressor frequency conversion control in transcritical heat pump system

Author

Listed:
  • Wei, Chenxu
  • Guo, Yabin
  • Li, Yuduo
  • Wang, Yuhua
  • Liu, Yaxin
  • Du, Congcong
  • Zhang, Linhan

Abstract

In the construction industry with increasing energy consumption, transcritical carbon dioxide heat pumps have been widely used because of their energy saving and high efficiency. However, the effect of compressor frequency on system operating characteristics has not been fully elucidated, and there is no effective variable frequency control strategy. Based on the experimental platform for transcritical CO2 heat pumps, this study conducts an in-depth analysis of the influence of compressor frequency on the system performance and dynamic characteristics. It is found that with the increase in frequency, the discharge temperature and the heating performance can be improved. The system COP has a maximum value. The system exhibits a pronounced dynamic response to changes in frequency. In light of the experimental findings, a variable frequency control optimization strategy was proposed. The results show that the heating time of the circulating heating mode is reduced by 3.11 %, and the COP is increased by 6.35 %; the water temperature in the primary heating mode is increased by 2.47 %, and the COP is increased by 3.92 %. The optimized strategy can effectively facilitate the system's achievement of energy saving, high efficiency, and stability.

Suggested Citation

  • Wei, Chenxu & Guo, Yabin & Li, Yuduo & Wang, Yuhua & Liu, Yaxin & Du, Congcong & Zhang, Linhan, 2024. "Research on optimization of compressor frequency conversion control in transcritical heat pump system," Energy, Elsevier, vol. 313(C).
    • Handle: RePEc:eee:energy:v:313:y:2024:i:c:s036054422403706x
    DOI: 10.1016/j.energy.2024.133928
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054422403706X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.133928?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:313:y:2024:i:c:s036054422403706x. 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.