Studies on process of dust explosion suppression by water spray

• Autorzy: Gieras, M.
• Języki publikacji: EN

Abstrakty

EN

Processes of dusty flame quenching and its acceleration by water sprays were investigated. For better understanding of these problems the neutral sand particles and typical extinguishing powders were also used. The study was carried out in the 1.25 m3 explosion chamber. A corn starch-air mixture was used in the explosion processes. It was shown that action of the water spray with the smallest droplets on the dust explosion suppression was the most effective. Also simulations of flame suppression process by water sprays with using the computer code FLACS were made for better understanding of the mechanism of flame acceleration and quenching processes (during dust explosion) caused by water sprays. An idea of optimal water spray droplets extinguishing diameter has been discussed. The obtained results confirmed that the water spray can be more effective as a dust explosion suppression medium than typical extinguishing powders.

Słowa kluczowe

EN

combustion; water spray

• Czasopismo: Archivum Combustionis
• Rocznik: 2011
• Tom: Vol. 31 nr 1-2
• Strony: 63-77
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Gieras, M.

• Warsaw University ofTechno1ogy, Institute ofHeat Engineering,

Bibliografia

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