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Nozzle for evaporative cooling and air humidification systems

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Evaporative cooling underlies one of the earliest space cooling systems invented by human, where the air cooling realizes owing to the natural water evaporation. To combat the high temperatures in the warm season, spray cooling is used, and in the cold season nozzle is used to humidify the air. Injector with nozzle made in the form of arch with the expiration of water through the opposed openings is considered in the article. It was found that at the flow expiration from the holes barred by arch efficient crushing occurs owing to the collision counter flows and due to the occurrence of self-vibrating under the arch. Are presented test results of nozzles of various configurations, in order to determine the effective size of the nozzle for adiabatic air cooling. Also was evaluated the estimation of drops size depending upon the water pressure. It is found that by using of the described nozzle we can get smaller drops sizes at lower pressures compared to the known analogs. At a pressure of 10 bar can be obtained drop size of 15 microns.

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