Optimization of deposition efficiency for airblast sprayers

Airblast spray applications were made using different combinations of the n ozzle disc-core sizes, number of nozzles, and groundspeed. Spray targets we re positioned at several spatial locations in open space and deposition was determined by copper colorimetry. Overall, deposition efficiency increased as speed increased or core size decreased. However for low-volume applicat ions, the use of fewer smaller nozzles at lower speeds was more effective t han using more nozzles at higher speeds. The trend was opposite for larger nozzles and high-volume rates.