Results 1 - 8 of 8

• Reservoir Engineering Considerations for Coal Seam Degasification and Methane Control in Underground Mines
  11/1/2009 - Conference papers
  This paper demonstrates the applications of coal bed reservoir engineering and modeling techniques for optimizing and controlling methane emissions in longwall and continuous miner sections.
• Numerical Study on Spontaneous Combustion of Coal in U.S. Longwall Gob Areas
  11/1/2009 - Conference papers
  In this paper, computational fluid dynamics (CFD) modeling results for both bleeder and bleederless ventilation systems are presented and the difference between two systems is discussed.
• Structural Vibration as a Noise Source on Vibrating Screens
  11/1/2009 - Conference papers
  For horizontal vibrating screens, NIOSH testing indicates that the screen sides and feed box are dominant noise sources for the 250 Hz through 800 Hz one-third octave bands, while the electric motor is the most significant source for the 1 kHz band.
• A Comparison Between Ignition Behaviours of 7 Different UK and World-Traded Coals in Air, and in a Mixture of Oxygen and Carbon Dioxide Gases Representative of Oxy-Combustion Conditions
  9/1/2009 - Conference papers
  This paper describes the results of testing using a 20L ignition test chamber to test suspensions of 7 UK and world traded coals in air and O2/C02 mixtures typical of oxy-combustion conditions.
• Remote Vision System for Dozers on Coal Stockpiles
  9/1/2007 - Conference papers
  NIOSH participated in an experiment to facilitate the remote control of dozers used on coal stockpiles. The normal sensory cues an operator requires to manipulate the dozer from a remote location were supplemented, such as with a vision system.
• Effect of Coal Type and Oxyfuel Combustion Parameters on Pulverised Fuel Ignition
  8/1/2007 - Conference papers
  This paper describes ignition tests on pulverised coal suspensions using a suite of coals of different rank and from different countries of origin and over a range of oxygen and coal concentrations of interest for oxyfuel combustion.
• Field-Scale Void Detection in Coal Piles Using Resistivity Imaging
  7/1/2002 - Conference papers
  This paper summarizes the results obtained from a field-scale test and shows that mapping voids within a coal pile is possible.
• The Modified Direct Method: A Solution for Obtaining Accurate Coal Desorption Measurements
  5/1/2001 - Conference papers
  This paper covers the development of NIOSH's modified direct method to measure the gas content of coal samples.