Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v36n6p1118-1125/2016 http://hdl.handle.net/11449/169252 |
Resumo: | The effect of blade angle on droplet size spectrum of five rotary cage atomizers and one rotary disc atomizer used in Brazil was evaluated in a high speed wind tunnel, with an air speed of 180 km h-1. This study included the characterization of the droplet size spectrum, via laser diffraction instrument, generated by three blades angles, of 45, 60 and 75 degrees. The spray solution was composed of Picoxystrobin + Cyproconazole fungicide (SC), at 20 mL c.p. L-1, and at a flow rate of 6 L min-1. As the angle decreased from 75 to 45 degrees, the rotational speed of the atomizers increased and the volume median diameter (VMD) decreased. However, increasing the rotational speed also increased the percentage of droplets smaller than 100 μm (% < 100 μm). At the blade angles of 45 and 60 degrees the atomizers showed that %<100 μm was higher than 20% and VMD was smaller than 198 μm. The disc type atomizer resulted in the lower values of relative span (RS). The use of 75 degrees blade angle produced the highest values of VMD and the lowest values of %<100 μm; these parameters were also affected by atomizer model and brand. |
id |
UNSP_b6c1e6d54d9bbc71222845d64a5b1232 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/169252 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Blade angle effect on droplet size spectrum of rotary atomizers used in BrazilApplication technologyAtomizationPesticidesSpray driftThe effect of blade angle on droplet size spectrum of five rotary cage atomizers and one rotary disc atomizer used in Brazil was evaluated in a high speed wind tunnel, with an air speed of 180 km h-1. This study included the characterization of the droplet size spectrum, via laser diffraction instrument, generated by three blades angles, of 45, 60 and 75 degrees. The spray solution was composed of Picoxystrobin + Cyproconazole fungicide (SC), at 20 mL c.p. L-1, and at a flow rate of 6 L min-1. As the angle decreased from 75 to 45 degrees, the rotational speed of the atomizers increased and the volume median diameter (VMD) decreased. However, increasing the rotational speed also increased the percentage of droplets smaller than 100 μm (% < 100 μm). At the blade angles of 45 and 60 degrees the atomizers showed that %<100 μm was higher than 20% and VMD was smaller than 198 μm. The disc type atomizer resulted in the lower values of relative span (RS). The use of 75 degrees blade angle produced the highest values of VMD and the lowest values of %<100 μm; these parameters were also affected by atomizer model and brand.AgroEfetivaUniversidade Estadual Paulista Faculdade de Ciências Agronômicas (UNESP/FCA)University of Nebraska-Lincoln West Central Research and Extension CenterUniversidade Estadual Paulista Faculdade de Ciências Agronômicas (UNESP/FCA)AgroEfetivaUniversidade Estadual Paulista (Unesp)West Central Research and Extension CenterCarvalho, Fernando K.Antuniassi, Ulisses R. [UNESP]Chechetto, Rodolfo G.Mota, Alisson A.B.Kruger, Greg R.2018-12-11T16:45:05Z2018-12-11T16:45:05Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1118-1125application/pdfhttp://dx.doi.org/10.1590/1809-4430-Eng.Agric.v36n6p1118-1125/2016Engenharia Agricola, v. 36, n. 6, p. 1118-1125, 2016.1808-43890100-6916http://hdl.handle.net/11449/16925210.1590/1809-4430-Eng.Agric.v36n6p1118-1125/2016S0100-691620160006011182-s2.0-85006783252S0100-69162016000601118.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEngenharia Agricola0,305info:eu-repo/semantics/openAccess2023-10-18T06:10:14Zoai:repositorio.unesp.br:11449/169252Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-18T06:10:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil |
title |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil |
spellingShingle |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil Carvalho, Fernando K. Application technology Atomization Pesticides Spray drift |
title_short |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil |
title_full |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil |
title_fullStr |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil |
title_full_unstemmed |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil |
title_sort |
Blade angle effect on droplet size spectrum of rotary atomizers used in Brazil |
author |
Carvalho, Fernando K. |
author_facet |
Carvalho, Fernando K. Antuniassi, Ulisses R. [UNESP] Chechetto, Rodolfo G. Mota, Alisson A.B. Kruger, Greg R. |
author_role |
author |
author2 |
Antuniassi, Ulisses R. [UNESP] Chechetto, Rodolfo G. Mota, Alisson A.B. Kruger, Greg R. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
AgroEfetiva Universidade Estadual Paulista (Unesp) West Central Research and Extension Center |
dc.contributor.author.fl_str_mv |
Carvalho, Fernando K. Antuniassi, Ulisses R. [UNESP] Chechetto, Rodolfo G. Mota, Alisson A.B. Kruger, Greg R. |
dc.subject.por.fl_str_mv |
Application technology Atomization Pesticides Spray drift |
topic |
Application technology Atomization Pesticides Spray drift |
description |
The effect of blade angle on droplet size spectrum of five rotary cage atomizers and one rotary disc atomizer used in Brazil was evaluated in a high speed wind tunnel, with an air speed of 180 km h-1. This study included the characterization of the droplet size spectrum, via laser diffraction instrument, generated by three blades angles, of 45, 60 and 75 degrees. The spray solution was composed of Picoxystrobin + Cyproconazole fungicide (SC), at 20 mL c.p. L-1, and at a flow rate of 6 L min-1. As the angle decreased from 75 to 45 degrees, the rotational speed of the atomizers increased and the volume median diameter (VMD) decreased. However, increasing the rotational speed also increased the percentage of droplets smaller than 100 μm (% < 100 μm). At the blade angles of 45 and 60 degrees the atomizers showed that %<100 μm was higher than 20% and VMD was smaller than 198 μm. The disc type atomizer resulted in the lower values of relative span (RS). The use of 75 degrees blade angle produced the highest values of VMD and the lowest values of %<100 μm; these parameters were also affected by atomizer model and brand. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01 2018-12-11T16:45:05Z 2018-12-11T16:45:05Z |
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/10.1590/1809-4430-Eng.Agric.v36n6p1118-1125/2016 Engenharia Agricola, v. 36, n. 6, p. 1118-1125, 2016. 1808-4389 0100-6916 http://hdl.handle.net/11449/169252 10.1590/1809-4430-Eng.Agric.v36n6p1118-1125/2016 S0100-69162016000601118 2-s2.0-85006783252 S0100-69162016000601118.pdf |
url |
http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v36n6p1118-1125/2016 http://hdl.handle.net/11449/169252 |
identifier_str_mv |
Engenharia Agricola, v. 36, n. 6, p. 1118-1125, 2016. 1808-4389 0100-6916 10.1590/1809-4430-Eng.Agric.v36n6p1118-1125/2016 S0100-69162016000601118 2-s2.0-85006783252 S0100-69162016000601118.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Engenharia Agricola 0,305 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1118-1125 application/pdf |
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_ |
1797789436520431616 |