Results 31 - 40 of 238

• Stability Evaluation of Active Gas Wells in Longwall Abutment Pillars
  9/16/2020 - Research projects
  A project to evaluate and quantify subsurface overburden deformations in longwall abutment pillars under shallow overburden depths, and to employ field instrumentation results and 3D numerical modeling to identify critical parameters.
• Evaluating the Stability of Shale Gas Wells in Longwall Barrier Pillars
  11/1/2019 - Non-peer reviewed journal articles
  An article discussing NIOSH's research on gas well stability in longwall pillars.
• Ventilation of Longwall Faces
  1/29/2019 - Research projects
  A project to improve the capabilities to detect changing ventilation conditions along a longwall face arising from poor roof caving characteristics and increasing face length.
• Methane Detection and Monitoring
  1/8/2019 - Research areas
  Methane Detection and Monitoring Topic Page
• Numerical and Experimental Investigation of Carbon Monoxide Spread in Underground Mine Fires
  9/27/2018 - Peer reviewed journal articles
  An article describing an evaluation of MFIRE, a mine fire simulation software based on ventilation networks, for its carbon monoxide spread prediction capabilities using experimental results from large-scale diesel fuel and conveyor belt fire tests.
• Estimation of Metabolic Heat Input for Refuge Alternative Thermal Testing and Simulation
  8/1/2018 - Peer reviewed journal articles
  A paper describing a study where miner size and activity level were used to determine the metabolic heat rate, oxygen requirements and carbon dioxide generation that are representative of miners in a refuge situation.
• CFD Gas Distribution Analysis for Different Continuous-miner Scrubber Redirection Configurations
  2/1/2018 - Peer reviewed journal articles
  A study in which a series of models using computational fluid dynamics (CFD) were used to examine gas distribution around a continuous miner with various fan-powered flooded bed scrubber discharge configurations in an exhaust curtain working face.
• Intrinsically Safe Low-Power Methane Wireless Sensors for Mapping of Methane Gas Clouds
  11/28/2016 - Contracts and cooperative agreements
  A contract to develop intrinsically safe, low-power-consumption methane sensors for mapping of methane gas clouds accumulated in underground coal mines.
• Wireless Sensor Network with Methane Gas Cloud Detector and Absolute Pressure Sensor
  11/28/2016 - Contracts and cooperative agreements
  A contract to (1) conduct absolute pressure measurement and recording in both non-permissable and permissable areas of a coal mine and (2) explore methane gas cloud detection, measurement, and visualization.
• Integration of Sensing Technologies for Post-Event Monitoring of Hazardous Conditions in the Mining Environment
  11/22/2016 - Contracts and cooperative agreements
  A contract to provide detection of ambient conditions in lesser traversed, remote areas of a mine by way of a repeater system with sensing modules capable of linking into the existing, hardened communications and tracking system.