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Implications of recent NIOSH tracer gas studies on bleeder and gob gas ventilation design.

Authors
Mucho-TP; Diamond-WP; Garcia-F; Byars-JD; Cario-SL
Source
2000 SME Annual Meeting, Salt Lake City, Utah, February 28 - March 1, 2000. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., Preprint 00-08, 2000 Feb; :1-17
Link
NIOSHTIC No.
20021020
Abstract
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 starta 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.
Keywords
Ventilation; Ventilation-systems; Mining-industry; Mine-shafts; Coal-mining; Methanes; Methane-drainage; Methane-control; Monitoring-systems; Models; Safety-measures; Control-systems; Control-technology; Monitors; Coal-miners; Underground-mining; Underground-miners; Mining-equipment; Explosive-atmospheres; Explosive-gases
CAS No.
74-82-8
Publication Date
20000228
Document Type
Conference/Symposia Proceedings
Fiscal Year
2000
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
2000 SME Annual Meeting, Salt Lake City, Utah, February 28 - March 1, 2000
State
PA; UT; CO
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