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A platform for research: civil engineering, architecture and urbanism
Installations for the suppression of sodium fires
The basic operating principles are discussed of a passive baffle-catch tray fire suppression system for sodium fires. A new design is described incorporating increased compartmentalization of the collecting and drainage parts of the device. The burning and smoke generation rates from trays with varying aperture sizes have been measured. From the experiments it is found that the burning rate and smoke generation rates could be related satisfactorily to the aperture areas. For the smallest aperture size it was found that the smoke release was considerably less than that from a fire of the same area, because the smoke deposited on the underside of the baffle. A reignition problem has been found, where pillars of sodium oxide (wicks) grow upward from the surface of the drained sodium and begin to burn when level with the baffle aperture. From a knowledge of the rate of growth of the wicks, trays may be made sufficiently deep to avoid the problem. Self acting valves have been developed which will allow the passage of sodium through the aperture and will close when drainage is complete
Installations for the suppression of sodium fires
The basic operating principles are discussed of a passive baffle-catch tray fire suppression system for sodium fires. A new design is described incorporating increased compartmentalization of the collecting and drainage parts of the device. The burning and smoke generation rates from trays with varying aperture sizes have been measured. From the experiments it is found that the burning rate and smoke generation rates could be related satisfactorily to the aperture areas. For the smallest aperture size it was found that the smoke release was considerably less than that from a fire of the same area, because the smoke deposited on the underside of the baffle. A reignition problem has been found, where pillars of sodium oxide (wicks) grow upward from the surface of the drained sodium and begin to burn when level with the baffle aperture. From a knowledge of the rate of growth of the wicks, trays may be made sufficiently deep to avoid the problem. Self acting valves have been developed which will allow the passage of sodium through the aperture and will close when drainage is complete
Installations for the suppression of sodium fires
Installationen zum loeschen von Natriumbraenden
Newman, R.N. (author) / Payne, J.F.B. (author) / Lee, C.J. (author) / Rowe, D.M.J. (author)
Nuclear Energy ; 18 ; 343-347
1979
5 Seiten, 6 Bilder, 11 Quellen
Article (Journal)
English
NATRIUM , BRANDSCHUTZ , HITZE , RAUCH , UNTERDRUECKUNG , PRUEFUNG , FEUER
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