IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v14y2022i20p13349-d944850.html
   My bibliography  Save this article

Using CFD to Simulate the Concentration of Polluting and Harmful Gases in the Roadway of Non-Metallic Mines Reveals Its Migration Law

Author

Listed:
  • Chengyu Xie

    (School of Environment and Resources, Xiangtan University, Xiangtan 411105, China)

  • Guanpeng Xiong

    (School of Environment and Resources, Xiangtan University, Xiangtan 411105, China)

  • Ziwei Chen

    (School of Environment and Resources, Xiangtan University, Xiangtan 411105, China)

Abstract

The green and pollution-free mining of resources has always been a research field that people have focused on. In the process of mining resources, the production of CO, SO 2 and other pollutants directly affects the health of miners and the atmospheric environment in the mining area. Therefore, it is particularly important to deal with and control the polluting gases generated by mining. Taking the underground roadway of a coal mine in Hengdong City, Hunan Province, as the research object, we studied the migration law of pollutant gas there. Comsol software was used to determine the changing state of pollutant gas migration in the roadway, and a simulation model of the wind field and the pollutant concentration field in the roadway under turbulent conditions was established. The results showed that, when the air flow moved to the front face of the roadway, it generated backflow to form a counterclockwise-rotating air flow vortex. Here, the air flow stagnated, hindering the diffusion of pollutants. The gas moved with the air flow in the roadway, and the flow’s velocity decreased in the middle of the roadway, causing pollutants to accumulate. The whole wind field tended to be stable at a plane 25 m from the roadway’s outlet. This indicates that the middle part of the roadway is the place where the polluted gas accumulates, and it is of representative significance to study the concentration of the polluted gas in the roadway in this section.

Suggested Citation

  • Chengyu Xie & Guanpeng Xiong & Ziwei Chen, 2022. "Using CFD to Simulate the Concentration of Polluting and Harmful Gases in the Roadway of Non-Metallic Mines Reveals Its Migration Law," Sustainability, MDPI, vol. 14(20), pages 1-16, October.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:20:p:13349-:d:944850
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/14/20/13349/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/14/20/13349/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Javier Menéndez & Noe Merlé & Jesús Manuel Fernández-Oro & Mónica Galdo & Laura Álvarez de Prado & Jorge Loredo & Antonio Bernardo-Sánchez, 2022. "Concentration, Propagation and Dilution of Toxic Gases in Underground Excavations under Different Ventilation Modes," IJERPH, MDPI, vol. 19(12), pages 1-21, June.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ming Lan & Rong Yang & Yan He & Qian Kang, 2023. "Study on the Dynamic Stability of an Underground Engineering Rock Mass with a Fault-Slip Seismic Source: Case Study of a URL Exploration Tunnel," Sustainability, MDPI, vol. 15(2), pages 1-21, January.

    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.

      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:gam:jsusta:v:14:y:2022:i:20:p:13349-:d:944850. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      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.