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Mining Publication: Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
Keywords: Airflow Entries Fires Modeling Smoke 
 Ventilation
Original creation date: January 2006
Authors: JC Edwards, RA Franks, GF Friel, L Yuan
Peer Reviewed Journal Article - January 2006
Download PDF Document (0.35 MB)
NIOSHTIC2 Number: 20030021
Min Eng 2006 Apr; 58(4):53-58
To determine the critical air velocity for preventing smoke rollback, diesel-fuel fire experiments were conducted in the NIOSH Pittsburgh Research Laboratory's Safety Research Coal Mine. Such information is necessary for preplanning and implementing ventilation changes during mine firefighting and rescue operations. The fire intensity varied from 50 to 300 kW depending on the fuel tray area. Airflow in the 6.6-ft-high, 9.5-ft-wide coal mine entry was regulated during the course of each experiment. The airflow was measured upwind from the fire as an average over the entry cross-section with an ultrasonic airflow sensor and was recorded dynamically with a mine monitoring system. The extent of smoke reversal was monitored with light-obscuration monitors, ionization smoke sensors, and visual observations. Experimental results for the critical air velocity for smoke reversal as a function of fire intensity compared very well with model predictions based on a computational fluid dynamics (CFD) fire dynamics simulator.
Image of publication Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine EntryPeer Reviewed Journal Article - January 2006
Download PDF Document (0.35 MB)
NIOSHTIC2 Number: 20030021
Min Eng 2006 Apr; 58(4):53-58
See Also
CFD Analysis of Mine Fire Smoke Spread and Reverse Flow Conditions
CFD Modeling of Fire Spread Along Combustibles in a Mine Entry
Evaluation of the Bagged Stone Dust Barrier Effectiveness in a Bord and Pillar Mine
Evaluation of the Relative Importance of Coalbed Reservoir Parameters for Prediction of Methane Inflow Rates During Mining of Longwall Development Entries
Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry
Novel Stopping Designs for Large-Opening Metal/Nonmetal Mines
Reservoir Modeling-Based Prediction and Optimization of Ventilation Requirements During Development Mining in Underground Coal Mines
Smoke, Carbon Monoxide, and Hydrogen Chloride Production from the Pyrolysis of Conveyor Belting and Brattice Cloth
Study of Mine Fires and Mine Ventilation: Part I, Computer Simulation of Ventilation Systems Under the Influence of Mine Fires
Understanding Mine Fire Disasters by Determining the Characteristics of Deep-Seated Fires
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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