IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v211y2020ics0360544220317679.html
   My bibliography  Save this article

One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction

Author

Listed:
  • Ren, Shoujun
  • Yang, Haolin
  • Jiang, Liqiao
  • Zhao, Daiqing
  • Wang, Xiaohan

Abstract

A novel vortex-tube combustor with axial fuel injection for NOx reduction was proposed to overcome the instability of ultra-lean combustion. The stability limit, flame configuration, NOx and CO emissions, and flame structure were investigated experimentally under various global equivalence ratios and fuel flow rates. The mechanisms of NOx emission reduction were analyzed by numerical simulation. Results show that the limit of global equivalence ratio can be as low as 0.01 and the amplitude of pressure fluctuation is always less than 1300 Pa, indicating fairly good performance in combustion stabilization of the combustor. In the operation range, there is a trade-off region with low NOx and CO simultaneously. The diffusion-like flame structure in this combustor can enhance the local equivalence ratio, whilst the flow field structure can also promote the transport of chemical enthalpy to the flame front, thus facilitating the stabilization. The enhanced stabilization enables the ultra-lean combustion and the ensued small area of the high-temperature zone to conduct, as well as the low NOx formation through reducing thermal NO. The local fuel-rich region and the flow field structure can promote the NOx to be reduced further via the Fenimore mechanism.

Suggested Citation

  • Ren, Shoujun & Yang, Haolin & Jiang, Liqiao & Zhao, Daiqing & Wang, Xiaohan, 2020. "One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction," Energy, Elsevier, vol. 211(C).
    • Handle: RePEc:eee:energy:v:211:y:2020:i:c:s0360544220317679
    DOI: 10.1016/j.energy.2020.118659
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544220317679
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2020.118659?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.

    References listed on IDEAS

    as
    1. Ren, Shoujun & Yang, Haolin & Jiang, Liqiao & Zhao, Daiqing & Wang, Xiaohan, 2020. "Stabilization characteristics and mechanisms in a novel tubular flame burner with localized stratified property," Energy, Elsevier, vol. 197(C).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Ren, Shoujun & Jones, William P. & Wang, Xiaohan, 2023. "Multi-fuel combustion performance analysis and operating characteristics of a vortex-tube combustor," Energy, Elsevier, vol. 264(C).
    2. Ren, Shoujun & Yang, Haolin & Wang, Xiaohan, 2021. "The oxygen-deficient combustion and its effect on the NOx emission in a localized stratified vortex-tube combustor," Energy, Elsevier, vol. 235(C).

    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:211:y:2020:i:c:s0360544220317679. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.