Effect of working pressure and spacing of nozzles on the quality of spraying distribution
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.cropro.2021.105818 http://hdl.handle.net/11449/222444 |
Resumo: | The correct placement of the crop protection product on the target depends on the adequate distribution provided by the spray nozzles. In this research, the objective was to verify the influence of the working pressure and spacing between nozzles on the quality of the spray distribution. It was analyzed the nozzles jets concerning symmetry, opening angle and flow rate. Two methodologies for determining the volumetric distribution were used, considering (1) the simultaneous collection of a set of nozzles arranged in a spray boom and (2) the volumetric distribution of each discrete sample of nozzle. Overlapping between spray jets was used to calculate the coefficient of variation (CV) due the nozzles spacing. Nine models of flat fan nozzles were used, at two nominal flow rates and four working pressures. The working pressure achieved a big effect on the quality of volumetric distribution. The pressure of 100 kPa produced the worse results of volumetric distribution, with CVs higher than 10% along the boom for all nozzle models, in both flow rates. Continuous improvements in the quality of distribution were observed with the increase in pressure until reaching 300 kPa, followed by a slight decrease in quality when reaching 400 kPa pressure. The spray nozzle model has also a big effect on the quality of distribution and there are no implied design characteristics that can turn easier a better choice of nozzles. Both methodologies for the determination of spray distribution achieved similar results and can be used for the nozzles spray distribution quality determination. |
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Effect of working pressure and spacing of nozzles on the quality of spraying distributionAccumulated volumeFlat jet tipsFlow rateHydraulic nozzlesPatternatorThe correct placement of the crop protection product on the target depends on the adequate distribution provided by the spray nozzles. In this research, the objective was to verify the influence of the working pressure and spacing between nozzles on the quality of the spray distribution. It was analyzed the nozzles jets concerning symmetry, opening angle and flow rate. Two methodologies for determining the volumetric distribution were used, considering (1) the simultaneous collection of a set of nozzles arranged in a spray boom and (2) the volumetric distribution of each discrete sample of nozzle. Overlapping between spray jets was used to calculate the coefficient of variation (CV) due the nozzles spacing. Nine models of flat fan nozzles were used, at two nominal flow rates and four working pressures. The working pressure achieved a big effect on the quality of volumetric distribution. The pressure of 100 kPa produced the worse results of volumetric distribution, with CVs higher than 10% along the boom for all nozzle models, in both flow rates. Continuous improvements in the quality of distribution were observed with the increase in pressure until reaching 300 kPa, followed by a slight decrease in quality when reaching 400 kPa pressure. The spray nozzle model has also a big effect on the quality of distribution and there are no implied design characteristics that can turn easier a better choice of nozzles. Both methodologies for the determination of spray distribution achieved similar results and can be used for the nozzles spray distribution quality determination.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Máquinas Agrícolas Jacto, PompéiaFaculty of Agricultural and Veterinarian Sciences (FCAV) São Paulo State University (Unesp)Faculty of Agricultural and Veterinarian Sciences (FCAV) São Paulo State University (Unesp)Máquinas Agrícolas JactoUniversidade Estadual Paulista (UNESP)Griesang, FabianoSpadoni, Ana Beatriz Dilena [UNESP]Urah Ferreira, Pedro Henrique [UNESP]da Costa Ferreira, Marcelo [UNESP]2022-04-28T19:44:44Z2022-04-28T19:44:44Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.cropro.2021.105818Crop Protection, v. 151.0261-2194http://hdl.handle.net/11449/22244410.1016/j.cropro.2021.1058182-s2.0-85115169871Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCrop Protectioninfo:eu-repo/semantics/openAccess2022-04-28T19:44:44Zoai:repositorio.unesp.br:11449/222444Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:44:44Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution |
title |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution |
spellingShingle |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution Griesang, Fabiano Accumulated volume Flat jet tips Flow rate Hydraulic nozzles Patternator |
title_short |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution |
title_full |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution |
title_fullStr |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution |
title_full_unstemmed |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution |
title_sort |
Effect of working pressure and spacing of nozzles on the quality of spraying distribution |
author |
Griesang, Fabiano |
author_facet |
Griesang, Fabiano Spadoni, Ana Beatriz Dilena [UNESP] Urah Ferreira, Pedro Henrique [UNESP] da Costa Ferreira, Marcelo [UNESP] |
author_role |
author |
author2 |
Spadoni, Ana Beatriz Dilena [UNESP] Urah Ferreira, Pedro Henrique [UNESP] da Costa Ferreira, Marcelo [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Máquinas Agrícolas Jacto Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Griesang, Fabiano Spadoni, Ana Beatriz Dilena [UNESP] Urah Ferreira, Pedro Henrique [UNESP] da Costa Ferreira, Marcelo [UNESP] |
dc.subject.por.fl_str_mv |
Accumulated volume Flat jet tips Flow rate Hydraulic nozzles Patternator |
topic |
Accumulated volume Flat jet tips Flow rate Hydraulic nozzles Patternator |
description |
The correct placement of the crop protection product on the target depends on the adequate distribution provided by the spray nozzles. In this research, the objective was to verify the influence of the working pressure and spacing between nozzles on the quality of the spray distribution. It was analyzed the nozzles jets concerning symmetry, opening angle and flow rate. Two methodologies for determining the volumetric distribution were used, considering (1) the simultaneous collection of a set of nozzles arranged in a spray boom and (2) the volumetric distribution of each discrete sample of nozzle. Overlapping between spray jets was used to calculate the coefficient of variation (CV) due the nozzles spacing. Nine models of flat fan nozzles were used, at two nominal flow rates and four working pressures. The working pressure achieved a big effect on the quality of volumetric distribution. The pressure of 100 kPa produced the worse results of volumetric distribution, with CVs higher than 10% along the boom for all nozzle models, in both flow rates. Continuous improvements in the quality of distribution were observed with the increase in pressure until reaching 300 kPa, followed by a slight decrease in quality when reaching 400 kPa pressure. The spray nozzle model has also a big effect on the quality of distribution and there are no implied design characteristics that can turn easier a better choice of nozzles. Both methodologies for the determination of spray distribution achieved similar results and can be used for the nozzles spray distribution quality determination. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-28T19:44:44Z 2022-04-28T19:44:44Z 2022-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.cropro.2021.105818 Crop Protection, v. 151. 0261-2194 http://hdl.handle.net/11449/222444 10.1016/j.cropro.2021.105818 2-s2.0-85115169871 |
url |
http://dx.doi.org/10.1016/j.cropro.2021.105818 http://hdl.handle.net/11449/222444 |
identifier_str_mv |
Crop Protection, v. 151. 0261-2194 10.1016/j.cropro.2021.105818 2-s2.0-85115169871 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Crop Protection |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803650065322999808 |