Mining Publication: Smoke Reversal Interaction with Diagonal Airway - Its Elusive Character
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Original creation date: January 2006
The reversal of smoke products-of-combustion from a mine fire was determined in a mine section with the airway connectivity of an electrical Wheatstone bridge. Four diesel-fuel fire experiments with fire heat-release rates between 504 and 771 kW were conducted in the Safety Research Coal Mine located at the National Institute for Occupational Safety and Health's Pittsburgh Research Laboratory. Smoke reversal propagated upwind from the fire with significant leakage into the upwind diagonal airway and without causing a complete reversal of airflow in the diagonal airway. A control measure consisting of a brattice suspended half entry height from the entry roof was determined to abate the smoke rollback. Computational fluid dynamics analysis of the smoke movement agreed with the measurements.
Authors: JC Edwards, GF Friel, L Yuan, RA Franks
Peer Reviewed Journal Article - January 2006
NIOSHTIC2 Number: 20031788
Trans Soc Min Metall Explor 2006 Jan; 320:149-156
See Also
- CFD Analysis of Mine Fire Smoke Spread and Reverse Flow Conditions
- Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
- Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
- In-depth Survey Report: Control Technology for Environmental Enclosures - The Effect of Wind Speed Upon Aerosol Penetration Into an Enclosure at Clean Air Filter, Defiance, IA
- Laboratory Testing To Quantify Dust Entrainment During Shield Advance
- Measurement of Airflow in a Simulated Underground Mine Environment Using an Ultrasonic Anemometer
- Novel Stopping Designs for Large-Opening Metal/Nonmetal Mines
- Ringelmann Smoke Chart
- Smoke, Carbon Monoxide, and Hydrogen Chloride Production from the Pyrolysis of Conveyor Belting and Brattice Cloth
- Sonic Anemometer Airflow Monitoring Technique for Use in Underground Mines
- Content source: National Institute for Occupational Safety and Health, Mining Program