Results 11 - 15 of 15

• Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
  2/1/2005 - Conference papers
  Diesel fuel fire experiments were conducted to determine the critical air velocity for preventing smoke rollback. Experimental results compared very well with model predictions based upon a computational fluid dynamics (CFD) fire dynamics simulator.
• Raising the Bar of Ventilation for Large-Opening Stone Mines
  5/1/2004 - Conference papers
  Describes the results of a case study where NIOSH demonstrates that significant increases in total mine airflow can be achieved and the ventilation improved in a large-opening stone mine by replacing an axial-vane mine fan with two 12-ft diameter propel...
• Evaluating Factors Affecting the Performance of Three-Axis Ultrasonic Anemometers
  5/1/2004 - Conference papers
  Provides guidelines for more effective use of the ultrasonic anemometer.
• Laboratory Testing To Quantify Dust Entrainment During Shield Advance
  6/1/2001 - Conference papers
  A series of controlled laboratory tests were conducted in a test stand simulating shield dust entrainment to evaluate changes in airborne respirable dust levels at different air velocities.
• Laboratory Evaluation of Shield Dust Entrainment in High-Velocity Airstreams
  2/1/2001 - Conference papers
  Laboratory test to simulate dust liberation during shield movement were conducted.