Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment
Beata Cieniawska , Katarzyna Pentoś
AbstractThe purpose of the research was to determine the influence of selected factors on the average degree of coverage and uniformity of liquid spray coverage using selected single and dual flat fan nozzles. The impact of nozzle type, spray pressure, driving speed, and spray angle on the average degree of coverage and coverage unevenness coefficient were studied. The research was conducted with special spray track machinery designed and constructed to control and change the boom height, spray angle, driving speed, and spray pressure. Based on the research results, it was found that the highest average coverage was obtained for single standard flat fan nozzles and dual anti-drift flat fan nozzles. At the same time, the highest values of unevenness were observed for these nozzles. Inverse relationships were obtained for air-induction nozzles. Maximization of coverage with simultaneous minimization of unevenness can be achieved by using a medium droplet size for single flat fan nozzles (volume median diameter (VMD) = 300 μm) and coarse droplet size for dual flat fan nozzles (VMD = 352 μm), with low driving speed (respectively 1.1 m∙s−1 and 1.6 m∙s−1) and angling of the nozzle by 20° in the opposite direction to the direction of travel.
|Journal series||Agriculture (Switzerland), [Agriculture (Switzerland)], ISSN 2077-0472, e-ISSN 2077-0472, (N/A 100 pkt)|
|Publication size in sheets||0.65|
|Keywords in English||average degree of coverage; coverage unevenness coefficient; optimization; neural network|
|ASJC Classification||; ;|
|License||Journal (articles only); published final; ; with publication|
|Score||= 100.0, 03-03-2021, ArticleFromJournal|
|Publication indicators||: 2018 = 1.272|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.