PROBLEM TO BE SOLVED: To provide a spraying system for lowering a temperature capable of exhibiting enhanced cooling energy efficiency, capable of effectively evaporating sprayed mist, and capable of preventing the sprayed mist from being dropped in the form of a droplet.;SOLUTION: The spraying system for lowering the temperature for spraying the pressurized water as the mist and lowering the temperature of a target space is provided with a spraying nozzle for spraying the pressurized water as the mist from an orifice provided on an end to a conic spray region having the orifice as the apex, and a water pipe connected to the other end of the spraying nozzle and distributing the pressurized water to the spraying nozzle; and a center line of the conic spray region is tilted downward to the direction to which the mist is sprayed from the orifice with respect to a horizontal plane crossing the orifice for a half of a spraying angle of the spray region or more, or is tilted upward for a value obtained by adding 5 degrees to the half of the spraying angle of the spray region with respect to the horizontal plane.;COPYRIGHT: (C)2006,JPO&NCIPI
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