Results 91 - 100 of 130

• 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.
• Evaluation of the Transverse Load Capacity of Block Stoppings for Mine Ventilation Control
  12/1/2005 - Theses/Dissertations
  A new protocol based on arching has been developed to determine the true transverse load capacity of stoppings.
• Using Ventilation Control Technology to Reduce Respirable Dust Exposures at U.S. Metal/Nonmetal Mining Operations
  7/1/2005 - Conference papers
  This manuscript will discuss five different research studies conducted by the National Institute for Occupational Safety and Health (NIOSH) which use ventilation in some application to lower workers' respirable dust exposures at surface and metal/nonmet...
• 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.
• 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.
• A Computer Software Program that Estimates Air Quantity Requirements in Large Opening Stone Mines
  5/1/2004 - Conference papers
  Describes a computer program developed by NIOSH for estimating the air quantity needed to dilute diesel particulate matter in underground large opening mines.
• Ventilation Planning Layouts for Large Opening Mines
  2/1/2004 - Conference papers
  Describes three alternative ventilation models for use in large opening underground mines with respect to their use in mines of various levels of development.
• Technology News 499 - Using Propeller Fans to Improve Ventilation in Large-Entry Stone Mines
  12/1/2002 - Technology News
  This Tech News reports on how the use of propeller fans can significantly improve the ventilation in large entry stone mines due to their efficiency at lower pressures and less required horsepower.
• Technology News 500 - Using In-Place Stone Stoppings to Direct Air in Underground Stone Mines
  12/1/2002 - Technology News
  The growing realization of the importance of a healthy work environment along with increased regulations will require many stone mines to implement new ways to improve ventilation. In-place stone stoppings are one option.
• Practical Techniques to Improve the Air Quality in Underground Stone Mines
  10/1/2002 - Conference papers
  Overview of a variety of techniques and methods that can be used to improve the air quality in underground stone mines.