Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations

Pags.- 4 Tabls.- 9 Figs. Available online 11 June 2014. The definitive version is available at: http://www.sciencedirect.com/science/journal/03783774

Detalles Bibliográficos
Autores: Ouazaa, Sofiane, Latorre Garcés, Borja, Burguete Tolosa, Javier, Serreta Oliván, Alfredo, Playán Jubillar, Enrique, Salvador Esteban, Raquel, Paniagua Antón, Pilar, Zapata Ruiz, Nery
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/98635
Acceso en línea:http://hdl.handle.net/10261/98635
Access Level:acceso abierto
Palabra clave:Center-pivot towers alignment
Towers dynamics
Center-pivot irrigation performance
Sprinkler application patterns
Fixed spray plate sprinklers
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spelling Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulationsOuazaa, SofianeLatorre Garcés, BorjaBurguete Tolosa, JavierSerreta Oliván, AlfredoPlayán Jubillar, EnriqueSalvador Esteban, RaquelPaniagua Antón, PilarZapata Ruiz, NeryCenter-pivot towers alignmentTowers dynamicsCenter-pivot irrigation performanceSprinkler application patternsFixed spray plate sprinklersPags.- 4 Tabls.- 9 Figs. Available online 11 June 2014. The definitive version is available at: http://www.sciencedirect.com/science/journal/03783774The simulation of center-pivot performance has been the subject of research efforts since the 1960s. Center-pivot models frequently use empirical equations relating pressure and sprinkler radial application pattern. Individual, stationary water application patterns are overlapped and the resulting water application is mapped in the field. Such models use constant tower angular velocity, neglecting the effect of tower alignment. In this work the discontinuous tower movement has been experimentally characterized and modelled, and a complete model has been developed by using a ballistic model of the center-pivot sprinklers considering nozzle diameter, operating pressure and wind speed. A detailed kinetic analysis of a four-tower commercial center-pivot was performed. Each tower was monitored using a high precision GPS, recording tower positions at high frequency. The experimental center-pivot was equipped with fixed spray plate sprinklers (FSPS). Five experimental center-pivot irrigation events were evaluated using catch-cans. The analysis of tower location data permitted to conclude that two key variables (linear speed and switching angle) showed normal distribution patterns. The center-pivot model was validated with catch-can data. Finally, the simulation tool was used to assess the effect of variable tower alignment quality, center-pivot travel speed and wind conditions on irrigation performance. Comparisons were performed in terms of radial, circular and total irrigation uniformity. Results indicate that the observed tower dynamics had no measurable effect on irrigation uniformity. Tower alignment quality started to be relevant when the switching angle lag was equal to or larger than 2°. In the conditions of this analysis, wind speed showed a clear effect on uniformity. As wind speed increased, uniformity first decreased and then increased. Further research is required to generalize these results to other center-pivot sizes and designs (sprinkler packages).This research was funded by the Ministry of Economy and Competitiveness of the Government of Spain through grant AGL2010-21681-C03-01.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201420142015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/98635reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.agwat.2014.05.013Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/986352026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
title Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
spellingShingle Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
Ouazaa, Sofiane
Center-pivot towers alignment
Towers dynamics
Center-pivot irrigation performance
Sprinkler application patterns
Fixed spray plate sprinklers
title_short Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
title_full Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
title_fullStr Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
title_full_unstemmed Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
title_sort Effect of the start-stop cycle of center-pivot towers on irrigation performance: experiments and simulations
dc.creator.none.fl_str_mv Ouazaa, Sofiane
Latorre Garcés, Borja
Burguete Tolosa, Javier
Serreta Oliván, Alfredo
Playán Jubillar, Enrique
Salvador Esteban, Raquel
Paniagua Antón, Pilar
Zapata Ruiz, Nery
author Ouazaa, Sofiane
author_facet Ouazaa, Sofiane
Latorre Garcés, Borja
Burguete Tolosa, Javier
Serreta Oliván, Alfredo
Playán Jubillar, Enrique
Salvador Esteban, Raquel
Paniagua Antón, Pilar
Zapata Ruiz, Nery
author_role author
author2 Latorre Garcés, Borja
Burguete Tolosa, Javier
Serreta Oliván, Alfredo
Playán Jubillar, Enrique
Salvador Esteban, Raquel
Paniagua Antón, Pilar
Zapata Ruiz, Nery
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Center-pivot towers alignment
Towers dynamics
Center-pivot irrigation performance
Sprinkler application patterns
Fixed spray plate sprinklers
topic Center-pivot towers alignment
Towers dynamics
Center-pivot irrigation performance
Sprinkler application patterns
Fixed spray plate sprinklers
description Pags.- 4 Tabls.- 9 Figs. Available online 11 June 2014. The definitive version is available at: http://www.sciencedirect.com/science/journal/03783774
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/98635
url http://hdl.handle.net/10261/98635
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.agwat.2014.05.013
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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