Results 1 - 10 of 14

• Evaluation of the SKC® DPM Cassette for Monitoring Diesel Particulate Matter in Coal Mines
  12/1/2004 - Peer reviewed journal articles
  A commercial version of the BOM impactor, called the DPM Cassette, was recently introduced by SKC®. Tests were conducted to evaluate the performance of the DPM Cassette for measuring diesel-source elemental carbon in the presence of coal dust.
• Frictional Ignitions in Underground Bituminous Coal Operations 1983-2005
  8/1/2009 - Peer reviewed journal articles
  NIOSH conducted a statistical study of available data regarding frictional ignitions in the United States from 1983 to 2005 to determine and define conditions controlling their occurrence.
• Post-Explosion Observations of Experimental Mine and Laboratory Coal Dust Explosions
  8/1/2006 - Conference papers
  NIOSH and MSHA conducted joint research on dust explosions by studying post-explosion dust samples of high and low volatile bituminous coals collected from full-scale explosions at NIOSH's Lake Lynn Experimental Mine and from laboratory explosions.
• Using Proximate Analysis to Characterize Airborne Dust Generation from Bituminous Coals
  6/1/2002 - Peer reviewed journal articles
  The amount of airborne respirable dust generated from breakage of different coals varies widely. This research was conducted to identify the facets of airborne respirable dust liberation from the coal product.
• Relationships Between Electrostatic Charging Characteristics, Moisture Content, and Airborne Dust Generation for Subbituminous and Bituminous Coals
  4/1/2000 - Peer reviewed journal articles
  Small scale laboratory pulverizing experiments were performed on humidified coal material sieved to size 6.35 mm (0.250 in) and below to eliminate effects due to inherent planes of weakness (cleats or joints). Experimental factors studied include the co...
• Investigation of Coal Properties and Airborne Respirable Dust Generation
  10/1/1998 - Reports of Investigations
  Laboratory testing and results are presented where five bituminous coals were prepared and processed through a double roll crusher located in a low-velocity wind tunnel. The results indicate that a combination of several factors are associated with air...
• Short-Delay Blasting in Underground Coal Mines
  1/1/1986 - Information Circulars
  Research was conducted to determine whether the total elapsed delay time for blasting bituminous coal in underground coal mines could be safely expanded beyond the 500-ms limitation without igniting a methane or methane-coal dust atmosphere.
• Methane Emissions from U.S. Coal Mines in 1980
  1/1/1984 - Information Circulars
  A tabulation of methane emissions during 1980 for all United States coal mines with emissions greater than 0.1 MMcfd. The report also compares records of 1975 and 1980 and describes relationships between emissions in 1980 and the Bureau's coalbed gas co...
• Estimating Methane Content of Bituminous Coalbeds From Adsorption Data
  1/1/1977 - Reports of Investigations
  The Bureau of Mines estimated the methane content of a coal, which depends primarily upon rank and pressure, from the adsorption equation V = kPn, where k and n are constants related to rank.
• Methane Emission from U.S. Coal Mines in 1975, A Survey : A Supplement to Information Circulars 8558 and 8659
  1/1/1977 - Information Circulars
  This Bureau of Mines report tabulates methane emissions from U.S. Bituminous coal mines with daily emission rates of at least 100,000 cfd according to states, counties, and coalbeds. Most of the methane emitted is from mines in the Appalachian States. T...