Multi Nozzle fire fighting system

The development of water mist fire suppression technology has made substantial progress over the last decade. Water mist based techniques are becoming popular but the fire extinguishment products call for high initial investment. There exists a need to develop cost effective water mist generation techniques appropriate for fire suppression. A standard portable water-CO2 fire extinguisher nozzle is selected for study with an application density of 1.0 l/min/m2.A multi-jet nozzle with opposed jet configuration is developed to get improved spray characteristics. Droplet Sauter Mean Diameters (SMD) were empirically calculated using correlations available in the literature. The spray developed has resulted in droplets with SMD in the range of 0.3 â€“ 0.4 mm as calculated from correlations and confirmed using experimental measurements.

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