Results 41 - 50 of 85

• Determining the Root Causes of Flame Cutting and Welding Fires in Underground U.S. Coal Mines
  6/1/2006 - Conference papers
  MSHA's reports and mining database were analyzed, and interviews and observations with mine workers and welders were conducted to determine the root causes of coal mine fires and explosions caused by flame cutting and welding operations.
• Fire-Generated Smoke Rollback Through Crosscut from Return to Intake - Experimental and CFD Study
  6/1/2006 - Conference papers
  Two mine fire experiments conducted in NIOSH Pittsburgh's Safety Research Coal Mine demonstrated that smoke from diesel-fuel fires in a return airway can develop into a roof layer that can migrate upwind, and smoke can penetrate an intake airway.
• Remotely Installed Mine Seals for Mine Fire Control
  3/1/2006 - Conference papers
  NIOSH is conducting full-scale tests at its Lake Lynn Experimental Mine to evaluate/improve remote mine seal construction technology, focusing on technology to completely close the mine opening, & reporting results from use of grout-based materials.
• Demonstration of Remote Mine Seal Construction
  1/1/2006 - Peer reviewed journal articles
  Mine seals can be remotely constructed in underground coal mines through vertical boreholes when direct access to a fire is impossible or considered to be too dangerous. Full-scale remote mine seal construction research is being conducted at the Nationa...
• Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
  1/1/2006 - Peer reviewed journal articles
  Results of diesel fuel fire experiments were conducted to determine the critical air velocity for preventing smoke rollback. Experimental results compared well with model predictions based on a computational fluid dynamics fire dynamics simulator.
• The Critical Ventilation Velocity in Tunnel Fires - A Computer Simulation
  4/1/2005 - Peer reviewed journal articles
  Discusses a study that used a CFD program (fire dynamics simulator) based on large eddy simulations (LES) to model floor-level fires in a ventilated tunnel. The CFD results are compared with two simple theories of critical ventilation.
• The Role of ASTM E27 Methods in Hazard Assessment: Part II - Flammability and Ignitability
  3/1/2005 - Peer reviewed journal articles
  This paper highlights some of the widely used standards for accurate flammability and ignitability data for chemicals, complemented with hypothetical but relevant examples describing the testing strategy, interpretation, and application of the results.
• 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.
• Expectations vs. Experience: Training Lessons Based Upon Miners' Difficulties when Using Emergency Breathing Apparatus
  4/1/2004 - Peer reviewed journal articles
  A field test of the NIOSH-developed training product "I Can't Get Enough Air" was conducted to determine if it led to improvements in miner's scores on a true/false test of their SCSR's functional capabilities and proper usage.
• Multiple Type Discriminating Mine Fire Sensors
  12/1/2003 - Peer reviewed journal articles
  Researchers determined that different types of fire sensors could distinguish mine fires from nuisance emissions produced by diesel equipment. A neural network was developed for coal, wood, & conveyor belt fires in the presence of diesel emissions.