Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal

Detalhes bibliográficos
Autor(a) principal: Leira, Ramón Pérez
Data de Publicação: 2011
Outros Autores: Román, Rodrigo Máximo Sánchez [UNESP], Frizzone, José Antônio [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://irriga.fca.unesp.br/index.php/irriga/article/view/314
http://hdl.handle.net/11449/72941
Resumo: A theoretical model was developed in order to determine the optimal moment for substituting the sprayer and pressure regulator kit on a center pivot irrigation machine. The model is based on the hypothesis that pressure regulator and sprayer deterioration decrease irrigation uniformity. To compensate the deficit that happens at under irrigated areas, an increase on irrigation depth is required. The model considers: additional water consumption and energy costs, maintenance and labor costs, as well as yield losses associated with under or over irrigated areas. The sum of all these components is compared to buying and installing a new spray kit cost, allowing the farmer to decide the best moment to renovate the sprayer and pressure regulator kits on a center pivot irrigation machine based on economic criteria.
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spelling Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposalCostsEfficiencyIrrigationMathematical modelPivotA theoretical model was developed in order to determine the optimal moment for substituting the sprayer and pressure regulator kit on a center pivot irrigation machine. The model is based on the hypothesis that pressure regulator and sprayer deterioration decrease irrigation uniformity. To compensate the deficit that happens at under irrigated areas, an increase on irrigation depth is required. The model considers: additional water consumption and energy costs, maintenance and labor costs, as well as yield losses associated with under or over irrigated areas. The sum of all these components is compared to buying and installing a new spray kit cost, allowing the farmer to decide the best moment to renovate the sprayer and pressure regulator kits on a center pivot irrigation machine based on economic criteria.Hydraulic Investigations Center Instituto Superior Politécnico 'Jose Antonio Echeverria' (ISPJAE)Universidade Estadual Paulista (UNESP), Faculdade de Ciências Agronômicas (FCA), Departamento de Engenharia Rural, Botucatu, SP, BrasilUniversidade de São Paulo (USP), Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), Piracicaba, SP, BrasilUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agronômicas (FCA), Departamento de Engenharia Rural, Botucatu, SP, BrasilInstituto Superior Politécnico 'Jose Antonio Echeverria' (ISPJAE)Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Leira, Ramón PérezRomán, Rodrigo Máximo Sánchez [UNESP]Frizzone, José Antônio [UNESP]2014-05-27T11:26:16Z2014-05-27T11:26:16Z2011-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article436-449application/pdfhttp://irriga.fca.unesp.br/index.php/irriga/article/view/314Irriga, v. 16, n. 4, p. 436-449, 2011.1413-78951808-3765http://hdl.handle.net/11449/729412-s2.0-848562809142-s2.0-84856280914.pdf42856985037087510000-0002-5957-061XScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIrriga0,283info:eu-repo/semantics/openAccess2024-04-30T14:02:23Zoai:repositorio.unesp.br:11449/72941Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T14:02:23Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
title Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
spellingShingle Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
Leira, Ramón Pérez
Costs
Efficiency
Irrigation
Mathematical model
Pivot
title_short Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
title_full Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
title_fullStr Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
title_full_unstemmed Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
title_sort Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
author Leira, Ramón Pérez
author_facet Leira, Ramón Pérez
Román, Rodrigo Máximo Sánchez [UNESP]
Frizzone, José Antônio [UNESP]
author_role author
author2 Román, Rodrigo Máximo Sánchez [UNESP]
Frizzone, José Antônio [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Instituto Superior Politécnico 'Jose Antonio Echeverria' (ISPJAE)
Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Leira, Ramón Pérez
Román, Rodrigo Máximo Sánchez [UNESP]
Frizzone, José Antônio [UNESP]
dc.subject.por.fl_str_mv Costs
Efficiency
Irrigation
Mathematical model
Pivot
topic Costs
Efficiency
Irrigation
Mathematical model
Pivot
description A theoretical model was developed in order to determine the optimal moment for substituting the sprayer and pressure regulator kit on a center pivot irrigation machine. The model is based on the hypothesis that pressure regulator and sprayer deterioration decrease irrigation uniformity. To compensate the deficit that happens at under irrigated areas, an increase on irrigation depth is required. The model considers: additional water consumption and energy costs, maintenance and labor costs, as well as yield losses associated with under or over irrigated areas. The sum of all these components is compared to buying and installing a new spray kit cost, allowing the farmer to decide the best moment to renovate the sprayer and pressure regulator kits on a center pivot irrigation machine based on economic criteria.
publishDate 2011
dc.date.none.fl_str_mv 2011-12-01
2014-05-27T11:26:16Z
2014-05-27T11:26:16Z
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://irriga.fca.unesp.br/index.php/irriga/article/view/314
Irriga, v. 16, n. 4, p. 436-449, 2011.
1413-7895
1808-3765
http://hdl.handle.net/11449/72941
2-s2.0-84856280914
2-s2.0-84856280914.pdf
4285698503708751
0000-0002-5957-061X
url http://irriga.fca.unesp.br/index.php/irriga/article/view/314
http://hdl.handle.net/11449/72941
identifier_str_mv Irriga, v. 16, n. 4, p. 436-449, 2011.
1413-7895
1808-3765
2-s2.0-84856280914
2-s2.0-84856280914.pdf
4285698503708751
0000-0002-5957-061X
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Irriga
0,283
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 436-449
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_ 1803650031948922880

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