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Mining Publication: CFD Analysis of Mine Fire Smoke Spread and Reverse Flow Conditions
Keywords: Fires Rates Smoke
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: June 1999
Authors: JC Edwards, CC Hwang
Conference Paper - June 1999
Download PDF Document (0.38 MB)
NIOSHTIC2 Number: 20024905
Proc Eighth U.S. Mine Ventilation Symposium. Rolla, MO; University of Missouri-Rolla, Press, Rolla, Missouri, 1999 Jun; :417-422
A Computational Fluid Dynamics (CFD) program was used to model buoyancy induced Product-Of-Combustion (POC) spread from experimental fires in the National Institute for Occupational Safety and Health (NIOSH), Pittsburgh Research Laboratory (PRL), safety research coal mine. In one application, the CFD program was used to predict spread from fires in an entry under zero airflow conditions. At a location, 0.41 m below the entry's roof at a distance of 30 m from the fire, the measured smoke spread rates were 0.093 and 0.23 m/s for a 30 and a 296 kw fire, respectively. The CFD program predicted spread rates of 0.15 and 0.26 m/s based upon the measured fire heat production rates. Based upon a computation with c3h8 as the hydrocarbon fuel, a predicted 5 PPM co alert time of 70 s at a distance of 30 m from the fire is to be compared with the measured alert time of 148 s. In a second application, the CFD program was used to analyze smoke flow reversal conditions, and the results were compared with visual observations of smoke reversal for 12 diesel fuel fires. The CFD predictions were in qualitative agreement with visual observations of smoke reversal.
Image of publication CFD Analysis of Mine Fire Smoke Spread and Reverse Flow ConditionsConference Paper - June 1999
Download PDF Document (0.38 MB)
NIOSHTIC2 Number: 20024905
Proc Eighth U.S. Mine Ventilation Symposium. Rolla, MO; University of Missouri-Rolla, Press, Rolla, Missouri, 1999 Jun; :417-422
See Also
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
Fire-Generated Smoke Rollback Through Crosscut from Return to Intake - Experimental and CFD Study
How Smoke Hinders Escape from Coal Mine Fires
Improvement of a Mine Fire Simulation Program � Incorporation of Smoke Rollback into MFIRE 3.0
Smoke, Carbon Monoxide, and Hydrogen Chloride Production from the Pyrolysis of Conveyor Belting and Brattice Cloth
Some Relevant Parameters for Assessing Fire Hazards of Combustible Mine Materials Using Laboratory Scale Experiments
Summary of Combustion Products from Mine Materials: Their Relevance to Mine Fire Detection
Technology News 497 - "You Are My Sunshine": A New Video Release From NIOSH on the Sunshine Mine Fire
Technology News 549 - MFIRE 3.0 - NIOSH Brings MFIRE into 21st Century
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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