TEMPERATURE REDUCTION IN A PREMISE BY SUPPLY OF THE AIR-WATER MIXTURE
Purpose. Determination of parameters of the air-water mixture supply into the dangerous premise by means of the smoke exhausters to reduce the temperature.Methods. Analytical investigations of the process of heat-mass exchange of drops of water dispersedwith high-temperature combustion products.Results. The equations for calculation of the temperature in the dangerous premise, change of dimensions of drops subject to the time and intensity of the air-water mixture supply were received.Scientific novelty. The dependence of the radius of the water drop being evaporated on its physicalparameters and temperature of the gaseous medium was established.Practical value. The methods of calculation of the decrease of the smoke gases temperature by supply of water dispersed into the dangerous premise by means of the portable smoke exhausters being in theinventory of the fire-rescue forces of the Ministry of Emergency Situations of the Donetsk People’s Republic were worked out. This will allow determining the necessary time of operation of the smoke exhauster and theconsumption of the air-water mixture to guarantee safety by elimination of the emergency situations.