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Droplet size characteristics for insecticide and herbicide spray atomizers
Author(s) -
Picot J. J. C.,
Vliet M. W. Van,
Payne N. J.
Publication year - 1989
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450670506
Subject(s) - nozzle , volume (thermodynamics) , wind tunnel , volume fraction , laser , mechanics , materials science , optics , chemistry , analytical chemistry (journal) , composite material , chromatography , physics , thermodynamics
Rotary atomizers and hydraulic nozzles used in forestry spraying were extensively tested with laser light scattering, laser light imaging, and photographic methods in a specially designed wind tunnel. Data on droplet size distribution and cumulative volume fraction versus droplet size are given. Correlations for reduced volume median diameter ( D v,0.5 / d 0 ) and reduced span (( D v.0.9 – D v.0.1 )/ d 0 ) presented. Accuracy of prediction is of the order of 20% for hydraulic nozzle volume median diameter. Accuracy of prediction for high‐speed rotating wire mesh atomizers is of the order of 35% for the volume median diameter. When these accuracies are inadequate, a specific test of the device in question is recommended.