Guidelines for the prediction and control of methane emissions on longwalls

• Corporate Authors: National Institute for Occupational Safety and Health., Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
• Other Authors: Schatzel, Steven J.
• Format: eBook
• Language: English
• Published: Pittsburgh, PA : Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory, [2008]
• Series: DHHS publication ; no. (NIOSH) 2008-114.; Information circular (National Institute for Occupational Safety and Health) ; IC 9502.
• Subjects: Coalbed methane.; Longwall mining > Safety measures.; Methane.; Mine gases.; elektronické knihy; electronic books
• ISBN: 9781615839575; 1615839577
• Physical Description: 1 online resource (83 pages).
• Item Description: Title from title screen (viewed June 27, 2008).; "March 2008."
• Access: Plný text je dostupný pouze z IP adres počítačů Univerzity Tomáše Bati ve Zlíně nebo vzdáleným přístupem pro zaměstnance a studenty

"Although longwall mining productivity can far exceed that of room-and-pillar mining, the total methane emissions per extracted volume associated with longwall sections are generally higher than those for continuous miner or pillar removal sections. Increased face advance rates, increased productivities, increased panel sizes, and more extensive gate road developments have challenged existing designs for controlling methane on longwalls. Methane control research by the National Institute for Occupational Safety and Health (NIOSH) recently examined a number of practices designed to maintain concentrations in mine air within statutory limits and consistently below the lower explosive limit. In this report, several practical guidelines are recommended for controlling longwall coalbed methane. All predictions are based on determinations made for the Pittsburgh Coalbed in southwestern Pennsylvania."