Computational fluid dynamics modeling of a methane gas explosion in a full-scale, underground longwall coal mine.

Details

• Personal Author:
  Bogin GE Jr. ; Brune, Jürgen F. ; Juganda A ; Strebinger C
• Description:
  Methane gas explosions are a major risk in underground coal mining operations. The severity of such explosions can range from local area damage to massive loss of miners' lives along with significant damage to mine infrastructure and ventilation controls that may lead to mine closure and loss of the entire operation. Computational fluid dynamics (CFD) modeling provides a tool to simulate methane gas explosions in underground coal mines and can help assess the potential damage of such events. The purpose of this study is to develop CFD models capable of modeling large-scale explosion in longwall mine, which can be used to study the impact of methane gas explosion on the mine ventilation. This study demonstrates the viability of integrating a combustion model into a longwall mine ventilation model to simulate methane gas explosions resulted from face ignition when the shearer is cutting the coal face. The results show that the availability of explosive gas mixtures significantly affects the resulting flame propagation and explosion pressure. [Description provided by NIOSH]
• Subjects:
  Explosions Mining Occupational Health Safety Ventilation
• Keywords:
  Author Keywords: Longwall; Coal Mining; Computational Fuid Dynamics; Ventilation; Methane Explosion Mining; Underground Mines; Longwall Mining; Methane Control; Ventilation; Computerized Simulation; Mine Gases; Explosions; Explosive Gases;
• ISSN:
  2524-3462
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Journal Article
• Place as Subject:
  Colorado ; OSHA Region 10 ; OSHA Region 8 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  39
• Issue:
  3
• NIOSHTIC Number:
  nn:20065213
• Citation:
  Min Metall Explor 2022 Jun; 39(3):897-916
• Contact Point Address:
  Gregory E. Bogin Jr., Colorado School of Mines, Golden, CO, USA
• Email:
  gbogin@mines.edu
• CAS Registry Number:
  Methane (CAS RN 74-82-8)
• Federal Fiscal Year:
  2022
• Performing Organization:
  Trustees of the Colorado School of Mines
• Peer Reviewed:
  True
• Start Date:
  20140901
• Source Full Name:
  Mining, Metallurgy & Exploration
• End Date:
  20190831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8cc25f202fc67ce65f7f0cf7dfa018789f118b3a3210ab3cb01e8518fca82213169034b4db2875b318adcf5efc61176f5b4c8a97b561a88e92248a69c7bcd2c5
• Download URL:
  https://stacks.cdc.gov/view/cdc/248817/cdc_248817_DS1.pdf
• File Type:
  [PDF - 7.97 MB ]