Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Mining Publication: Predicting Methane Emissions from Longer Longwall Faces by Analysis of Emission Contributors

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.

Original creation date: June 2006

Image of publication Predicting Methane Emissions from Longer Longwall Faces by Analysis of Emission Contributors

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.

Authors: RB Krog, SJ Schatzel, F Garcia, JK Marshall

Conference Paper - June 2006

  • 0.18 MB

NIOSHTIC2 Number: 20030321

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


TOP