A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sodium-Fire Protection by Covered Trench: FFTF Proof Test F4
The effectiveness of a covered trench for extinguishing sodium fires was evaluated by performing a large scale proof test. The trench was a steel lined concrete mockup of a section of pipe trench located in the Fast Flux Test Facility (FFTF) secondary sodium pump cells. The trench had a steel cover with holes to permit rapid drainage of sodium into the trench. Approximately 100 gallons of sodium at 1120 exp 0 F were spilled onto a horizontal floor adjacent to the trench in a cell containing an air atmosphere. Approximately 98% of the sodium drained rapidly into the trench and the fire was immediately extinguished. Nitrogen flooding prevented oxygen re-entry. Measurements of temperature, pressure and O sub 2 , H sub 2 and H sub 2 O concentration confirmed that the covered trench provided an effective control of the sodium fire. Only 1.3% of the sodium entering the trench was oxidized. The liner prevented a direct sodium-concrete reaction but a significant quantity of water was released from the concrete by heat transfer through the liner. (ERA citation 07:053977)
Sodium-Fire Protection by Covered Trench: FFTF Proof Test F4
The effectiveness of a covered trench for extinguishing sodium fires was evaluated by performing a large scale proof test. The trench was a steel lined concrete mockup of a section of pipe trench located in the Fast Flux Test Facility (FFTF) secondary sodium pump cells. The trench had a steel cover with holes to permit rapid drainage of sodium into the trench. Approximately 100 gallons of sodium at 1120 exp 0 F were spilled onto a horizontal floor adjacent to the trench in a cell containing an air atmosphere. Approximately 98% of the sodium drained rapidly into the trench and the fire was immediately extinguished. Nitrogen flooding prevented oxygen re-entry. Measurements of temperature, pressure and O sub 2 , H sub 2 and H sub 2 O concentration confirmed that the covered trench provided an effective control of the sodium fire. Only 1.3% of the sodium entering the trench was oxidized. The liner prevented a direct sodium-concrete reaction but a significant quantity of water was released from the concrete by heat transfer through the liner. (ERA citation 07:053977)
Sodium-Fire Protection by Covered Trench: FFTF Proof Test F4
R. K. Hilliard (author) / L. D. Muhlestein (author)
1974
58 pages
Report
No indication
English
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NTIS | 1976
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