LIQUID WATER SPRAY USE FOR THE FIRE EXTINGUISHING IN ROOM

The paper presents a certain theoretical approach concerning the droplet evaporation processes from the liquid jet, sprayed in an air vapour mixture. One of the main aims of the paper is to estimate the life time of the liquid droplet, in function of its dimension and of the air humidity. From the particularities of the transfer phenomena involved in the droplet evaporation, the way in which the experimental tests should be lead results. The influence of the liquid temperature on the spray atomisation in the surrounding was exposed The aspects regarding the experimental tests were mentioned as the jet development followed by the evaporation quality. The enhancement of the fire extinguish efficiency by using the preheated liquid was revealed. The free jet of warm liquid water represents an adequate way to change the surrounding composition, than the oxygen concentration fall under the ignition limit. By using the clean water as working fluid the ecological demand of the proposed system was realised.