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Title: INFLUENCE OF WATER MIST AND ITS PARAMETERS ON FIRE SUPPRESSION
INFLUENCE OF WATER MIST AND ITS PARAMETERS ON FIRE SUPPRESSION

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Marek Miskay; Miriam Kadlubcova; Karla Barcova
10.5593/sgem2024/5.1/s20.21
10.5593/sgem2024/5.1
1314-2704
978-619-7603-72-9
English
24
5.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Ecology and Environmental Protection
Water mist systems are increasingly used in a wide range of applications. These systems play an important role in fire suppression, firefighting, and generally in combating the effects of fire. Water has the ability to reduce ambient, flame and fuel temperatures. It is also capable of wetting the fuel and preventing the spread of flames to unburned fuel. It has the ability to displace oxygen and combustible gases from an area, reduce the spread of radiant heat, or trap toxic or other particles from smoke. The effectiveness of water mist depends on its parameters. This article focuses on the most important ones, namely spray angle, water flow rate, flow velocity, working pressure, water mist droplet size, and also the temperature of the water source. The different parameters are interrelated and changing one parameter we can achieve a change in another parameter. It is necessary to keep in mind that it may not be the case that the highest or lowest values are the most effective. It is always necessary to determine experimentally or numerically the most effective value of a given parameter. At the same time, it is worth mentioning that it is not only the extinguishing agent that matters, but also the fuel that burns. With that said, the results cannot be applied in general and each fuel type may react differently to water mist. The paper describes the different parameters and the method we use to measure the droplet sizes of water mist, including the results from experimental measurements made using laser diffraction at the Technical University of Ostrava.
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The development was possible thanks to the project no. SP2022/104, entitled: "Particle distribution characteristics for different types of mist nozzles", which was approved and implemented under the Specific research of the Ministry of Education of the Czech Republic.
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https://doi.org/10.5593/sgem2024/5.1/s20.21
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
147-154
1 - 7 July, 2024
website
9969
Water mist, water mist parameters, droplet size distribution, laser diffraction

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