NIOSHTIC-2 Publications Search

Predicting methane emissions from longer longwall faces by analysis of emission contributors.

Krog RB; Schatzel SJ; Garcia F; Marshall JK

Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :383-392

https://doi.org/10.1201/9781439833391

20030321

NIOSH conducted a longwall methane emission and mining time study at a mine operating in the Pittsburgh Coalbed to access the methane emission consequences of mining a longer face. The methane emission contributors from mining a longwall face are: (1) gas released from the coal broken by the shearer, (2) gas emitted from the coal on the face conveyor, (3) gas emitted from the coal transported on the belt, and (4) background gas emitted from the coal face and adjoining ribs. Based on the results of the study, a set of site-specific mathematical formulas and constants were developed to characterize each of the four longwall emission contributors. The formulas were then applied to longer longwall face mining scenarios to predict the methane emissions from these faces.

Mining-industry; Underground-mining; Coal-mining; Longwall-mining; Ventilation; Air-flow; Gases

NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236

74-82-8

20060605

Conference/Symposia Proceedings

Mutmansky JM; Ramani RV

2006

0415401488

PRL

Disease and Injury: Traumatic Injuries

Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006

PA