Optimal moment to change pressure regulator and sprayer kit on center pivot irrigation machines: a theoretical proposal
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
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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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:29462024-08-05T20:46:37.609610Repositório 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_ |
1808129247001182208 |