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Investigation of characteristics of shock-waves produced by water bag explosion
Języki publikacji
Abstrakty
W artykule przedstawiono wyniki badań parametrów fali uderzeniowej powstającej przy wytwarzaniu aerozolu wodnego metodą wybuchową.
The paper presents results of investigations of parameters of the shock-wave generated in the process of explosive formation of water-spray. The spray was produced by exploding a charge located inside a hag fitled with water (called shortly water-bag). The measurements have been carried on for three kinds of explosive materials (Emulinit, Saletrol and Plastic), for three sizes of the water-bag (600 dm3, 1200 dm3 and 1500 dm3) and for explosion energies varying from 4 MJ to 20 MJ. The experimental setup consisted of the water-bag hung 10 m over the ground, of a fast video-camera registering expansion of the water-spray cloud, and of piezoelectric sensors placed along the direction of the shock-wave propagation that were coupled on-line with a registering-controlling computer system. The objective of the investigations consisted in measuring the shock-wave propagation velocity and pressure variation as well as determining expansion velocity of the cloud as a function of its diameter for various explosive energies, water-bag sizes and explosive material used. The measurements served as a test for verification of theoretical hypotheses concerning explosive production and expansion of the water-spray cloud. The tests allowed to optimize the water-bag size, the kind of explosive material and the explosion energy from the point of view of maximizing cloud's diameter and minimizing droplets' radii.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
71--78
Opis fizyczny
Bibliogr. 10 poz., rys., tab., wykr.
Twórcy
autor
autor
autor
autor
- Wyższa Szkoła Gospodarki, Bydgoszcz
Bibliografia
- [1] Tarnogrodzki A.: Dynamika gazów, WKŁ, Warszawa, 2003.
- [2] Teie W.: Firefighter’s handbook of wildland firefighting, Dear Valley Press, Recue CA 1994.
- [3] Kuhrt E., Knollenberg J., Martens V., Annals of Burns and Fire Disasters 14 (2001) 151.
- [4] Liu Z., Kim A. K., Carpenter D.: Extinguishment of large cooking oil pool fires by the use of water mist system, in Combustion Institute/Canada Section, Spring Technical Meeting, May 9-12, 2004, pp. 1-6.
- [5] International ESMG Symposium Process Safety and Industrial Explosion Protection, March 16-18, Nurnberg.
- [6] Shoigu S., Annals of Burns and Fire Disasters 6 (1993) 187.
- [7] Zukas A. A., Walters W. P. (eds.): Explosive Effects and Applications, Springer, New York 2003.
- [8] Houghes W. F., Brighton J. A.: Fluid Dynamics, McGraw-Hill, New York 1967. 12
- [9] Roman S. Dygdała, Krzysztof Stefański, Damian Lewandowski, Maria Ingwer Żabowska, Michał Kaczorowski; „Aerosol Produced by Explosive Detonation in a Water Bag as Fire Extinguishant.”, 3rd International Conference IPOEX 2006, Ustroń – Jaszowiec 20 –22 czerwca 2006 r.
- [10] Dz. U. Nr 163, poz. 1577 - Rozporządzenie ministra gospodarki, pracy i polityki społecznej w sprawie bezpieczeństwa i higieny pracy przy produkcji, transporcie wewnątrzzakładowym oraz obrocie materiałów wybuchowych, w tym wyrobów pirotechnicznych.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-PWAA-0021-0009