Results 1 - 10 of 97

• Investigation of Temperature Rise in Mobile Refuge Alternatives
  3/27/2014 - Reports of Investigations
  This Report of Investigations details the results of a NIOSH investigation of temperature rise in mobile refuge alternatives.
• Numerical Model Calibration for Simulating Coal Pillars, Gob and Overburden Response
  7/1/2010 - Conference papers
  The paper provides a basic set of input data and a modeling approach that can be used for numerical modeling investigations of various coal mine designs using the FLAC3D software package.
• Effect of Longwall Face Advance on Spontaneous Heating in Longwall Gob Areas
  3/1/2010 - Peer reviewed journal articles
  In this paper, Computational Fluid Dynamics modeling of the effect of longwall face advance on the spontaneous heating of coals in a two-panel gob area using a bleeder ventilation system is presented.
• CFD Modeling of Spontaneous Heating in a Large-Scale Coal Chamber
  7/1/2009 - Peer reviewed journal articles
  This paper discusses a study in which a three-dimensional CFD modeling of spontaneous heating of coal, based on the U.S. Bureau of Mines (USBM) large-scale coal chamber tests, was conducted.
• Degasification System Selection for U.S. Longwall Mines Using an Expert Classification System
  3/1/2009 - Peer reviewed journal articles
  This study describes the development of an expert classification system used as a decision tool which can be used for degasification system selection using site- and mine-specific conditions.
• Numerical Study on Effects of Coal Properties on Spontaneous Heating in Longwall Gob Areas
  11/1/2008 - Peer reviewed journal articles
  A computational fluid dynamics (CFD) study was conducted to model effects of coal properties on the potential for spontaneous heating in longwall gob (mined-out) areas.
• Key Design Factors of Enclosed Cab Dust Filtration Systems
  11/1/2008 - Reports of Investigations
  NIOSH experimentally investigated various factor effects on cab air filtration system performance.
• A Numerical Evaluation on the Effects of Impermeable Faults on Degasification Efficiency and Methane Emissions During Underground Coal Mining
  9/1/2008 - Peer reviewed journal articles
  This study uses reservoir simulations to illustrate the effects of impermeable faults on the production performance of vertical and horizontal degasification boreholes.
• Simulation of Spontaneous Heating in Longwall Gob Area with a Bleederless Ventilation System
  8/1/2008 - Peer reviewed journal articles
  To provide insights for the optimization of bleederless ventilation systems for U.S. underground coal mines, a computational fluid dynamics study was conducted to model spontaneous heating in longwall gob areas using a bleederless ventilation system.
• Effects of Ventilation and Gob Characteristics on Spontaneous Heating in Longwall Gob Areas
  6/1/2008 - Conference papers
  The results of field tests to understand how ventilation and gob characteristics affect the spontaneous heating process causing spontaneous combustion fires in longwall or worked-out gob areas are presented.