Spreadsheet for droplet size and calibration decisions for agricultural aircraft
1994
Smith, D.B. | Willcutt, M.H. | Spencer, T.T.
A spreadsheet for IBM compatible computers was written to assist with atomization decisions associated with high speed air streams and the calibration of agricultural aircraft. The "AER-ATOM" program requires up to 13 input variables. The user-supplied data are used to calculate the Volume Median Diameter (D(V0.5)), the accuracy the D(V0.5), percent of the spray volume which was initially less than or equal to 154 micrometers in diameter, and the number of nozzles which will be needed to deliver a desired volumetric application rate (gpa of total spray). The abundant presence of significant operating or equipment variables in the D(V0.5) equations indicates that the aerial applicator has wide latitude in controlling the atomization/calibration results. Successive simulations can be made by changing the data for one or more variables. These results can be saved either in a computer file or as a printed copy for future reference. The magnitude of the calibration errors resulting from fly-ins in Mississippi indicate that the 'AER-ATOM' can help improve application accuracy.
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