Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment

The 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...

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Main Authors: Beata Cieniawska, Katarzyna Pentos
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Agriculture
Subjects:
Online Access:https://www.mdpi.com/2077-0472/11/2/151
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author Beata Cieniawska
Katarzyna Pentos
author_facet Beata Cieniawska
Katarzyna Pentos
author_sort Beata Cieniawska
collection DOAJ
description The 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<sup>−1</sup> and 1.6 m∙s<sup>−1</sup>) and angling of the nozzle by 20° in the opposite direction to the direction of travel.
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spelling doaj.art-33536331210240a6aaca5c6268fcc9d52023-12-11T16:52:21ZengMDPI AGAgriculture2077-04722021-02-0111215110.3390/agriculture11020151Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality AssessmentBeata Cieniawska0Katarzyna Pentos1Institute of Agricultural Engineering, Wrocław University of Environmental and Life Sciences, 37b Chełmońskiego Street, 51-630 Wrocław, PolandInstitute of Agricultural Engineering, Wrocław University of Environmental and Life Sciences, 37b Chełmońskiego Street, 51-630 Wrocław, PolandThe 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<sup>−1</sup> and 1.6 m∙s<sup>−1</sup>) and angling of the nozzle by 20° in the opposite direction to the direction of travel.https://www.mdpi.com/2077-0472/11/2/151average degree of coveragecoverage unevenness coefficientoptimizationneural network
spellingShingle Beata Cieniawska
Katarzyna Pentos
Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment
Agriculture
average degree of coverage
coverage unevenness coefficient
optimization
neural network
title Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment
title_full Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment
title_fullStr Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment
title_full_unstemmed Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment
title_short Average Degree of Coverage and Coverage Unevenness Coefficient as Parameters for Spraying Quality Assessment
title_sort average degree of coverage and coverage unevenness coefficient as parameters for spraying quality assessment
topic average degree of coverage
coverage unevenness coefficient
optimization
neural network
url https://www.mdpi.com/2077-0472/11/2/151
work_keys_str_mv AT beatacieniawska averagedegreeofcoverageandcoverageunevennesscoefficientasparametersforsprayingqualityassessment
AT katarzynapentos averagedegreeofcoverageandcoverageunevennesscoefficientasparametersforsprayingqualityassessment