IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v312y2024ics036054422403411x.html
   My bibliography  Save this article

Effect of obstruction ratio rate of change gradients on the deflagration characteristics of H2-Air premixed gases

Author

Listed:
  • Wu, Junjie
  • Xiu, Zihao
  • Liu, Zhenyi
  • Li, Pengliang

Abstract

To investigate the effect of the gradient of obstruction ratio change rate on the H2-Air premixed gas combustion explosion in the semi-confined space, Fluent software is used to simulate the explosion flame, turbulent turning and pressure wave coupling process under the conditions of obstacles with different obstruction ratios change rate. The results indicate that as the obstruction ratio's rate of change increases, flame propagation speed decreases, while pressure peak and pressure change rate increase. The flame front becomes sharper, and a positive change in obstruction ratio more significantly affects flame shape and speed than a negative change. At obstruction ratio change rates of −0.3 and −0.2, the flame front area and peak area reach their maximum values. At a change rate of 0.3, the pressure peak is 232 kPa, and the maximum pressure change is 126 kPa/ms, indicating the explosion intensity reaches its peak.

Suggested Citation

  • Wu, Junjie & Xiu, Zihao & Liu, Zhenyi & Li, Pengliang, 2024. "Effect of obstruction ratio rate of change gradients on the deflagration characteristics of H2-Air premixed gases," Energy, Elsevier, vol. 312(C).
    • Handle: RePEc:eee:energy:v:312:y:2024:i:c:s036054422403411x
    DOI: 10.1016/j.energy.2024.133633
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054422403411X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.133633?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:312:y:2024:i:c:s036054422403411x. 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.