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Mining Publication: The Effects of Ventilation and Preburn Time on Water Mist Extinguishing of Diesel Fuel Pool Fires
Keywords: Diesel fuel Fire suppression
Original creation date: September 2004
Authors: L Yuan, CP Lazzara
Peer Reviewed Journal Article - September 2004
Download PDF Document
NIOSHTIC2 Number: 20025446
J Fire Sci 2004 Sep 22(5):379-404
The goal of the NIOSH Pittsburgh Research Laboratory's Firefighting and Prevention Program is to reduce the number of fires and fire-related injuries in the mining industry. Under this effort, water mist is being evaluated for suppressing underground mine fires, such as those in diesel fuel storage areas. In this study, a series of large-scale fire tests was conducted to investigate the effects of ventilation and preburn time on water mist extinguishing of three diesel fuel pool fires with heat release rates of 230 kW, 1 MW, and 3 MW. The experiments were done in a simulated underground coal mine diesel fuel storage area under three ventilation conditions: no ventilation, natural ventilation, and forced ventilation and with two preburn times for the no ventilation condition--30 sec and 1 min. Without ventilation, the 230-kW fire was the most difficult to extinguish; with natural ventilation, the 1-MW fire took the longest time to extinguish; and with forced ventilation, the 3-MW fire was the most challenging. With the 30-sec preburn time, the extinguishing time was nearly the same for the 230-kW fire as for the 1-min preburn time, whereas it increased for both 1-MW and 3-MW fires, with the 1-MW fire being the most difficult to extinguish. The extinguishing mechanisms, including fuel surface cooling, flame cooling, and oxygen depletion and displacement, are discussed. The critical water flow rate is estimated for the fires extinguished by the surface cooling mechanism.
Peer Reviewed Journal Article - September 2004
Download PDF Document
NIOSHTIC2 Number: 20025446
J Fire Sci 2004 Sep 22(5):379-404
See Also
Aerosols Emitted in Underground Mine Air by Diesel Engine Fueled with Biodiesel
The Effects of Water Emulsified Fuel on Diesel Particulate Matter Concentrations in Underground Mines
Evaluation of the Bagged Stone Dust Barrier Effectiveness in a Bord and Pillar Mine
Inflatable Partitions for High-Expansion Foam Generators
Low Temperature Limits for Mixing Recycled Oil, Diesel Fuel, and Ammonium Nitrate to Make ANFO-Type Blasting Agents
Mine Fires - Measuring the Efficacy of Gas-Enhanced Foam
Technical Solutions for Enhancements to Mine Safety Using Barricade II Fire Blocking Gel
Testing and Evaluation of an Inflatable Temporary Ventilation Control Device
Thermal Stability of ANFO Made with Recycled Oil
Understanding Mine Fire Disasters by Determining the Characteristics of Deep-Seated Fires
Page last reviewed: March 30, 2017
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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