Effectiveness of an active dust and gas explosion suppression system

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

Abstrakty

EN

The research aimed to test the effectiveness of gas and dust explosion suppression by means of a super fast explosion suppression system with a volume of 5 dm3. Smokeless powder as an explosive charge and sodium bicarbonate as a suppressing material were used. The experiments were carried out using a prototype device - a 5 liter steel container, closed by means of an aluminum membrane. Approximately 1.75 kg of extinguishing powder was placed in the container. The membrane was ruptured by exploding a specially developed charge located inside a perforated steel combustion chamber and mounted over the suppressing powder surface. The system was triggered by a signal from the protected volume, sent by a pressure transducer or by a photodiode reacting to a developing flame. The investigations into the efficiency of the active explosion suppression system were carried out in the 1.3 m3 explosion chamber. The explosion was initiated in a corn starch-air mixture of 0.2 kg/m3 concentration, or in a methane-air mixture of 7.5% and 8.5% CH4 concentration. The explosion suppression process occurred through the action of the extinguishing powder blown out from the extinguisher after the compressed combustion products perforated the membrane.

Słowa kluczowe

EN

dust explosion; supressing materials; active explosion supression systems

PL

wybuch pyłu; materiały tłumiące hałas; systemy tłumienia wybuchu

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2012
• Tom: Vol. 92, nr 1
• Strony: 1--11
• Opis fizyczny: Bibliogr. 24 poz., tab., rys., wykr.

Twórcy

autor

Gieras M.

autor

Klemens R.

• Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25 Street, 00-665 Warsaw, Poland,

Bibliografia

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