Experimental study of suppressing effect of fine water droplets on propane/air premixed flames stabilized in the stagnation flowfield

Experimental investigation of atomized water droplet initial parameters influence on evaporation intensity in flaming combustion zone

“…These results are especially important with regard to the development of possible instruments and accesses for water massifs atomization, which are thrown down in the flame zone by aviation. Established regularities of water droplet evaporation in hightemperature flow are in sufficiently good agreement with results of experimental investigations [5][6][7][8][9][10][11][12][13][14]. Thus we can conclude that they correspond well to investigation results of salt mixtures [8], water droplet sizes [5][6][7], initial temperature and structure [9][10][11][12][13][14] influence on evaporation characteristics in the flame.…”

“…The variety of water droplet sizes was accomplished during experiments in typical for many supplements (for example [4][5][6][7][8][9][10][11][12][13][14]) range 0.01 rR m r0.4 mm, and also a relative droplet concentration in a flow of atomized liquid (0 o α m o1). The condition radius R m was taken as a characteristic droplet size (similar to experiments [11][12][13][14]), because water droplets took the form of ellipsoids during motion in the gas flow.…”

“…"Vapor-water curtains", "water fog", "vapor-droplet mixtures", and flows of atomized by special way liquids (in particular water and its emulsions) are characterized by improved efficiency at fire extinguishing and fire response in comparison with large volumes of non-atomized water [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. As a consequence the operations of traditionally used fire-extinguishing systems remodeling are conducted intensively.…”

“…Numerical and experimental investigations made in recent years [1][2][3][4][5][6][7][8][9][10][11][12][13][14] showed that the evaporation is intensified significantly, oxidant and combustion products are forced by forming vapor flow, temperature in the flame zone is decreased. It happens under specialized atomization of extinguishing liquids in the flaming combustion zone.…”

Fire extinguishing properties of novel ferrocene/surfynol 465 dispersions

“…Typical methods for measuring droplet size include laser grating [20], laser diffraction [21], phase Doppler [22], photographic [23], and immersion techniques [24]. The immersion method employed in this study involves collecting droplets using an immiscible liquid, and then determining the droplet size by microscopic observation (DMI 3000B, Leica, Germany).…”