Effectiveness of Swirl Water Mist Nozzles for Fire Suppression

Natalia Kraus-Namroży and Dorota Brzezińska ()
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Natalia Kraus-Namroży: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213 Street, 90-924 Lodz, Poland
Dorota Brzezińska: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213 Street, 90-924 Lodz, Poland

IJERPH, 2022, vol. 19, issue 23, 1-11

Abstract: Water mist nozzles are becoming increasingly popular as water extinguishing devices in buildings, increasing people’s safety during evacuation. There are questions as to whether or not they are as effective as conventional sprinkler systems. The measurement of the size distribution of the created droplets is one of the components for determining the extinguishing effectiveness of water mist nozzles. The project’s goal was to look into the characteristics of the atomized stream produced by a swirl water mist nozzle. The general properties of the tested nozzle are covered in the article. The measurement technique and test stand were given. The collected data was compared to data from the literature. The results are displayed as graphs that depict the distribution of mean droplets with a quantitative volume that varies with pressure and proximity to the test nozzle. The results proved the extinguishing and cooling capabilities of hot fire gases in the water stream created by the tested nozzle.

Keywords: people safety; evacuation; low pressure water mist nozzle; fire extinguishing; sprinkler; water mist (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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