PT Journal AU Ondrusik, D Balner, D Thomitzek, A TI Extinguishing of Pool Fires using the Water Mist SO Communications - Scientific Letters of the University of Zilina PY 2020 BP 191 EP 200 VL 22 IS 4 DI 10.26552/com.C.2020.4.191-200 WP https://komunikacie.uniza.sk/artkey/csl-202004-0023.php DE water mist; pool fire; extinguishing time; flammable liquid; nozzle SN 13354205 AB Currently, there is progressive use of fire protection systems that use the high-pressure water mist. The extinguishing effect of water mist on flammable liquids is not sufficiently elucidated. Therefore, experiments were designed to gain new knowledge about the mechanism of the high-pressure water mist extinguishing.As a source of the pool fire, gasoline, kerosene, diesel and ethanol were used. Flammable liquids were stored in a circular steel container with a diameter of 165mm and a depth of 12mm. The container was placed in an enclosed room of 2.7 x 2.7m x 3m. In the experiment, the time to extinguish flammable liquids was measured using nozzles of different spray characteristics of the water mist. The nozzles with orifice 400 um, 800 um and 1000 um were used at a constant pressure of 70 bar. ER