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Mining Publication: Implications of Recent NIOSH Tracer Gas Studies on Bleeder and Gob Gas Ventilation Design
Keywords: Longwall mining Methane control Ventilation control
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: February 2000
Authors: TP Mucho, WP Diamond, F Garcia, JD Byars, SL Cario
Conference Paper - February 2000
Download PDF Document (0.40 MB)
NIOSHTIC2 Number: 20021020
SME Annual Meeting, 2000 Feb 25 - Mar 1, Salt Lake City, Utah, SME Preprint No. 00-8, Littleton, CO, 2005; :1-17
The National Institute for Occupational Safety and Health (NIOSH) has been conducting research at a Pittsburgh Coalbed longwall mine to evaluate and optimize bleeder ventilation and gob gas venthole longwall methane control systems. Gas flow into these two methane control systems was investigated using a combination of Sulphur Hexafluoride (SF6) tracer gas studies and gob venthole pressure monitoring experiments. The insights gained from this research has facilitated the development of a longwall subsided strata methane control system conceptual model. This model provides the basis for design suggestions to increase the efficiency of the gob gas venthole system to permit the bleeder ventilation system to become a "safety net" for methane control.
Image of publication Implications of Recent NIOSH Tracer Gas Studies on Bleeder and Gob Gas Ventilation DesignConference Paper - February 2000
Download PDF Document (0.40 MB)
NIOSHTIC2 Number: 20021020
SME Annual Meeting, 2000 Feb 25 - Mar 1, Salt Lake City, Utah, SME Preprint No. 00-8, Littleton, CO, 2005; :1-17
See Also
The Borehole Monitoring Experiment: Field Measurements of Reservoir Conditions and Responses in Longwall Panel Overburden During Active Mining
Computational Fluid Dynamics Modeling for Underground Mines
Degasification System Selection for U.S. Longwall Mines Using an Expert Classification System
Guidelines for the Prediction and Control of Methane Emissions on Longwalls
Modeling and Prediction of Ventilation Methane Emissions of U.S. Longwall Mines Using Supervised Artificial Neural Networks
Predicting Methane Emissions from Longer Longwall Faces by Analysis of Emission Contributors
Prediction of Longwall Methane Emissions and the Associated Consequences of Increasing Longwall Face Lengths: A Case Study in the Pittsburgh Coalbed
Prediction of Longwall Methane Emissions: An Evaluation of the Influence of Mining Practices on Gas Emissions and Methane Control Systems
Studying Longwall Ventilation with Physical Modeling
Technology News 448 - Improving the Performance of Longwall Gob Gas Ventholes
Page last reviewed: July 21, 2015
Page last updated: July 21, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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