Externet Posted January 16, 2009 Share Posted January 16, 2009 Some devices used for delivering insecticides into open areas operate on "thermal" principle... How is that in detail ? I do not think it is just matter of heating-up the fluid under an air blower flow. Any light please? Example : http://www.dynafog.com/international/foggers/ Miguel Link to comment Share on other sites More sharing options...
morganparkar Posted March 3, 2009 Share Posted March 3, 2009 Hi, There are several ways. A natural fog (cloud or ground fog) is formed by condensation of vapor as the temperature drops below the dew point. A thermal fogger heats an oil-based liquid so it can condense in ambient air. Small droplets can also be created by pumping liquid through a small orifice; by slinging liquid from a spinning disk; by ultrasonic excitation; and by turbulent zone atomization. Foggers use a high turbulence vortex air nozzle to atomize liquid into tiny droplets. Link to comment Share on other sites More sharing options...
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