IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v242y2025ics0960148125000400.html
   My bibliography  Save this article

Research on the effect of green hydrogen blending on natural gas centrifugal compressor performance

Author

Listed:
  • Xiong, Zhiyi
  • Liu, Yuhui
  • Cai, Yongjun
  • Chang, Weichun
  • Wang, Ziqiang
  • Li, Zhenlin
  • Peng, Shiyao

Abstract

Integrating green hydrogen into natural gas pipelines offers carbon reduction potential, but its effects on compressor performance and stability remain unclear, posing operational challenges. To evaluate the impact of green hydrogen blending on the performance and stability of two-stage centrifugal compressors, a high-resolution 3D compressor model is developed using 3D scanning. Simulations conducted with the Spalart-Allmaras (S-A) turbulence model are validated against operational data, showing high accuracy and closer alignment with real-world performance than traditional similarity conversions. Analysis of different green hydrogen blending ratios under various operating conditions reveals that at constant impeller speed and inlet pressure, higher green hydrogen ratios reduce mixed gas density and specific heat, resulting in lower compression work, pressure, and temperature. Green hydrogen blending also expands the surge region, shifting the surge and maximum flow lines downward, which reduces the compressor's stable operating range. Specifically, increasing the hydrogen ratio from 0 % to 20 % decreases the operating area by 17.32 %. For stable transport of natural gas blended with green hydrogen, increasing inlet flow to maintain target outlet pressure and adjusting compressor speed to prevent surge is recommended. These findings provide valuable insights for the safe and efficient integration of green hydrogen in natural gas systems.

Suggested Citation

  • Xiong, Zhiyi & Liu, Yuhui & Cai, Yongjun & Chang, Weichun & Wang, Ziqiang & Li, Zhenlin & Peng, Shiyao, 2025. "Research on the effect of green hydrogen blending on natural gas centrifugal compressor performance," Renewable Energy, Elsevier, vol. 242(C).
    • Handle: RePEc:eee:renene:v:242:y:2025:i:c:s0960148125000400
    DOI: 10.1016/j.renene.2025.122378
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148125000400
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2025.122378?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:s0960148125000400. 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.