Mining Publication: Advances in Grid-Based Numerical Modeling Techniques for Improving Gas Management in Coal Mines
Original creation date: June 2008
Effective gas management in coal mines, as well as proper ventilation design, is very important for maintaining the safety of underground coal miners. Advances in numerical modeling techniques have enabled evaluations of the coal mining environment using advanced grid designs and computed gas distributions through detailed mathematical models. These models help engineers to "see" the "unseen" areas of the mine through visualization of the data and ultimately help improve worker safety. This paper summarizes the modeling efforts conducted by NIOSH in the U.S. and CSIRO in Australia to address various gas management issues encountered in longwall mines. The modeling studies involved two of the most widely used grid-based techniques, namely computational fluid dynamics (CFD) and numerical reservoir modeling. This paper discusses the application of these techniques for gob inertization and gas control for spontaneous combustion, pre-mining degasification of coalbeds, gob gas venthole design and performance evaluation in longwalls, and gas management during development mining.
Authors: CĂ Karacan, TX Ren, R Balusu
Conference Paper - June 2008
NIOSHTIC2 Number: 20034158
Proceedings of the 12th U.S./North American Mine Ventilation Symposium, Reno, Nevada, June 9-11, 2008. Wallace, Jr. KG. ed., Reno, NV: University of Nevada - Reno, 2008; :313-320
See Also
- A CART Technique to Adjust Production from Longwall Coal Operations under Ventilation Constraints
- Degasification and Production of Natural Gas From an Air Shaft in the Pittsburgh Coalbed
- Degasification System Selection for U.S. Longwall Mines Using an Expert Classification System
- Effect of Longwall Face Advance on Spontaneous Heating in Longwall Gob Areas
- Elastic and Shear Moduli of Coal Measure Rocks Derived from Basic Well Logs Using Fractal Statistics and Radial Basis Functions
- Methane Control by Isolation of a Major Coal Panel - Pittsburgh Coalbed
- Numerical Modeling Procedures for Practical Coal Mine Design
- Propagation of UHF Radio Waves in Limestone Room and Pillar Mines
- Rotary Drilling Techniques Used in the Beckley Coalbed
- Stochastic Modeling of Gob Gas Venthole Production Performances in Active and Completed Longwall Panels of Coal Mines
- Page last reviewed: 9/21/2012
- Page last updated: 9/21/2012
- Content source: National Institute for Occupational Safety and Health, Mining Program