INCREASING EXTINGUISHING EFFECT OF WATER MIST BY ELEKTRIFICATION
DOI:
https://doi.org/10.14311/CEJ.2017.01.0005Keywords:
Low-, medium- and high-pressure mist, fire-fighting nozzle, DC high-voltage generator, cathode, anode, extinguishing time.Abstract
This paper describes extinguishing experiments to verify the possibility of increasing the fire-extinguishing efficiency of low-, medium- and high-pressure water mist by its charging by the electric field of high DC voltage. The experimental results confirmed the effects of the electrical voltage, the configuration of electrodes (anode, cathode), the volumetric water flow rate, water pressure and the type of mist nozzle. Higher fire-extinguishing effect of electrically-charged water mist was shown by a shorter extinguishing time, a smaller volume of water to extinguish the fire and a higher percentage of successful extinguishing attempts. Benefit: faster and more efficient fire-fighting with a smaller risk of injury of persons and smaller subsequent damage in the protected space.
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References
NFPA 750 (USA): Standard on Water Mist Fire Protection Systems, Current Edition: 2015. Next Edition: 2019.
CEN/TS 14972 (EU) Fixed firefighting systems. Water-mist systems. Design and installation. 2011. [3] ČSN P CEN/TS 14972 (ČR) Stabilní hasicí zařízení. Mlhová zařízení. Navrhování a instalace. 2012.
FM 5560 (USA) Water Mist Systems. 2012.
ANSI/UL 2167 (USA) Standard for Safety for Water Mist Nozzles for Fire-Protection Service. 2011.
FM DS 4-2 (USA) FM Global Data Sheet. Water Mist Systems. 2006.
DD 8489 (UK) Fixed fire protection systems. Industrial and commercial water-mist systems. Code of practice for design and installation. 2011. [8] APSAD D2 (Francie) Guide pour l'installation de systèmes de protection incendie par brouillard d'eau. 2007.
Užitný vzor CZ 29 023 U1, 2015-12-28
Užitný vzor CZ 30 012 U1, 2016-11-15
zák. č. 478/1992 Sb., o užitných vzorech
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