Results 41 - 50 of 102

• Case Study of Controlled Recirculation at a Wyoming Trona Mine
  3/1/2014 - Peer reviewed journal articles
  A report detailing the results of two controlled recirculation tests over three days at a Wyoming trona mine, utilizing an inline booster fan to improve airflow to a remote and difficult-to-ventilate development section.
• Impact on Respirable Dust Levels When Operating a Flooded-bed Scrubber in 20-foot Cuts
  12/17/2013 - Reports of Investigations
  This Report of Investigations compares dust levels generated in 20-ft cuts when using traditional exhaust face ventilation without a scrubber to dust levels in 20-ft cuts when using extended curtain setbacks with a scrubber operating.
• Improving stopping construction to minimise leakage
  7/1/2012 - Peer reviewed journal articles
  The research presented in this paper investigates the total leakage of a stopping, including air leakage through the stopping, at the stopping perimeter, and through the coalbed.
• Development of a canopy air curtain to reduce roof bolters' dust exposure
  7/1/2012 - Peer reviewed journal articles
  This experimentally designed air curtain, adapted for roof bolting machines used in this study, is based upon previous design prototypes, computational fluid dynamics (CFD) simulations and trial-and-error testing.
• Breaking the Ice on the Booster Fan Dilemma in US Underground Coal Mines
  10/1/2010 - Peer reviewed journal articles
  This paper presents the history of booster fan use in coal mines of the United States during the last 90 years. Changes in regulations, as well as advantages and disadvantages of booster fan use, are discussed. Research and petitions for booster fan use...
• Diesel Aftertreatment Control Technologies in Underground Mines: The NO2 Issue
  6/1/2010 - Conference papers
  This paper provides an overview of what effects the different exhaust aftertreatment technologies and control strategies available to the mining industry have on the NO₂ emissions. Specific focus is given to their effect on the ventilation st...
• Impact of Air Velocity and Support Advance on Shield-Generated Dust
  4/1/2010 - Peer reviewed journal articles
  This paper investigates the influence of air velocity and shield advance rates on respirable dust levels. Also discussed are engineering controls currently used to reduce shield dust and alternative controls being investigated by NIOSH.
• Studying Intake Airway Pressurization by Ventilation Modeling and Leakage Evaluation
  2/1/2010 - Conference papers
  This paper discusses the role of ventilation modeling in evaluating primary escapeway pressurization in a three-entry development system to improve emergency escape in a coal mine using belt air.
• Use of CFD Modeling to Study Inert Gas Injection into a Sealed Mine Area
  2/1/2010 - Conference papers
  This paper presents an overview of a novel PSA (pressure swing adsorption) plant, the details of the gas injection tests and CFD modeling work.
• Methods to Improve Efficiency of Mine Ventilation Systems
  1/1/2010 - Peer reviewed journal articles
  This paper discusses some ways to find extra usable air when there is no extra ventilation capacity.