A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method to Evaluate the Performance of Coal Fire Extinguishants
The U.S. Bureau of Mines developed an experimental method to evaluate the relative effectiveness of water additives on the extinguishment of coal fires. The experiments were conducted in the fire zone of the multiple entry section of the Bruceton Experimental Mine. Four-hundred pound Pittsburgh seam coalbeds were ignited and allowed to burn until well developed fires were achieved. Extinguishing agent-water solutions were then applied to the fires and the quantity required to extinguish the fires compared to the amount of water alone required to extinguish similar fires. A 20% diammonium phosphate-water solution required an average of 5.8 gal to extinguish the coal fires, while two commercially available water additive solutions required an average of 8.1 and 8.0 gal, respectively. The average amount of water required to extinguish the fires was 7.4 gal. An analysis of covariance, using the thermal energy of the coalbed, Q, to quantify the fire at the time of extinguishment, showed that the diammonium phosphate-water solution was slightly more effective at extinguishing these coal fires than water alone, while the two commercially available water additive solutions were statistically equivalent to water alone.
Method to Evaluate the Performance of Coal Fire Extinguishants
The U.S. Bureau of Mines developed an experimental method to evaluate the relative effectiveness of water additives on the extinguishment of coal fires. The experiments were conducted in the fire zone of the multiple entry section of the Bruceton Experimental Mine. Four-hundred pound Pittsburgh seam coalbeds were ignited and allowed to burn until well developed fires were achieved. Extinguishing agent-water solutions were then applied to the fires and the quantity required to extinguish the fires compared to the amount of water alone required to extinguish similar fires. A 20% diammonium phosphate-water solution required an average of 5.8 gal to extinguish the coal fires, while two commercially available water additive solutions required an average of 8.1 and 8.0 gal, respectively. The average amount of water required to extinguish the fires was 7.4 gal. An analysis of covariance, using the thermal energy of the coalbed, Q, to quantify the fire at the time of extinguishment, showed that the diammonium phosphate-water solution was slightly more effective at extinguishing these coal fires than water alone, while the two commercially available water additive solutions were statistically equivalent to water alone.
Method to Evaluate the Performance of Coal Fire Extinguishants
A. C. Smith (author) / D. Ng (author) / M. W. Ryan (author) / C. P. Lazzara (author)
1991
19 pages
Report
No indication
English
Concentration Profiles of Extinguishants in a Fire Environment; Gas Sampling and Analysis
| British Library Conference Proceedings | 1992
Commentary on the Chemical Action of Halogenated Extinguishants
| Online Contents | 2005
Halogenated Flame Extinguishants - Some Additional Support for the Physical Mechanism
| Online Contents | 2005