CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO

Detalhes bibliográficos
Autor(a) principal: Frigo, Jiam Pires
Data de Publicação: 2014
Tipo de documento: Tese
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações do UNIOESTE
Texto Completo: http://tede.unioeste.br:8080/tede/handle/tede/208
Resumo: The sprinkler irrigation system is widely used because of the possibility of high uniform distribution and to adapt itself to different crops and soils. On the other hand, the water uniform application in irrigation is affected by meteorological factors that decrease the system efficiency. There has always been some concern about the quality of products and services in human history, since all products should have desirable characteristics to be accepted by consumers. Currently, development, improvement and monitoring of new management models quality during the production process have become essential for many organizations. Thus, inspection control has enhanced by statistical techniques, losses have been decreased and it was possible to stimulate some trading competition. In this context, this study aimed at evaluating the irrigation system in a conventional sprinkler using the Christiansen Uniformity Coefficient (CUC) and the index Process Capability (CP) to correlate techniques with the system efficiency as well as verify the wind influence on irrigation by Shewhart control chart and compare the results of Shewhart control charts use with the EWMA and tabular CUSUM control charts, applied in quality control of the conventional sprinkler irrigation. In this study, 60 essays were carried out on a four irrigation sprinklers system, Xcel-Wobbler model, 1.0 m height above soil and 6.0 x 6.0 m spaced. The collectors were 1.0 m spaced apart with 0.5 m height from soil. The service pressure was monitored and appropriate to the sprinklers specifications, while wind was monitored in situ by a 2.0 m high digital anemometer. In order to evaluate the system, Christiansen Uniformity Coefficient (CUC), the index Process Capability (CP), Shewhart charts (Xbarra) and the charts of exponentially weighted moving average (EWMA) and cumulative sum (CUSUM) were used. The irrigation sprinkler system showed the best performance and was under control when the average wind speed was less than 1.0 m s-1. The use of individual Shewhart control charts visually allowed affirming that wind has a direct influence on CUC. Night irrigation showed less variability on the studied data, when compared to daytime ones and this has resulted in greater efficiency in irrigation. The CPi index showed great similarity with the Christiansen Uniformity Coefficient (CUC). It proved to be very sensitive to efficiency sprinkler (Ea) variation and able to indicate the quality of sprinkler irrigation. The EWMA chart, when compared to the control charts, was susceptible when used in autocorrelated data, according to the occurrence of false alarms. But, to the residue data without autocorrelation (the ARIMA model), the CUSUM tabular chart was more sensitive to detect variations in irrigation due to wind speed, when compared to EWMA and Shewhart charts for the same data. In sprinkler irrigation, when there is a relation between CUC and wind speed, the Shewhart chart was more indicated by simplicity, reliability and ease of interpretation, even in the presence of autocorrelated data.
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spelling Boas, Marcio Antonio VilasCPF:55200834600http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723608D4&dataRevisao=nullHernández, Ricardo HernándezCPF:64353249991http://lattes.cnpq.br/0620411908531578Hermes, ElianeCPF:04429934983http://lattes.cnpq.br/6070182918590833Mello, Eloy Lemos deCPF:02131113900http://lattes.cnpq.br/2106300099734952Siqueira, Jair Antonio CruzCPF:76514188915http://lattes.cnpq.br/5644626331586827CPF:00436241030http://lattes.cnpq.br/6443025153770870Frigo, Jiam Pires2017-05-12T14:47:09Z2015-08-252014-06-02FRIGO, Jiam Pires. STATISTICAL CONTROL OF QUALITY IN THE SPRINKLER IRRIGATION. 2014. 57 f. Tese (Doutorado em Engenharia) - Universidade Estadual do Oeste do Parana, Cascavel, 2014.http://tede.unioeste.br:8080/tede/handle/tede/208The sprinkler irrigation system is widely used because of the possibility of high uniform distribution and to adapt itself to different crops and soils. On the other hand, the water uniform application in irrigation is affected by meteorological factors that decrease the system efficiency. There has always been some concern about the quality of products and services in human history, since all products should have desirable characteristics to be accepted by consumers. Currently, development, improvement and monitoring of new management models quality during the production process have become essential for many organizations. Thus, inspection control has enhanced by statistical techniques, losses have been decreased and it was possible to stimulate some trading competition. In this context, this study aimed at evaluating the irrigation system in a conventional sprinkler using the Christiansen Uniformity Coefficient (CUC) and the index Process Capability (CP) to correlate techniques with the system efficiency as well as verify the wind influence on irrigation by Shewhart control chart and compare the results of Shewhart control charts use with the EWMA and tabular CUSUM control charts, applied in quality control of the conventional sprinkler irrigation. In this study, 60 essays were carried out on a four irrigation sprinklers system, Xcel-Wobbler model, 1.0 m height above soil and 6.0 x 6.0 m spaced. The collectors were 1.0 m spaced apart with 0.5 m height from soil. The service pressure was monitored and appropriate to the sprinklers specifications, while wind was monitored in situ by a 2.0 m high digital anemometer. In order to evaluate the system, Christiansen Uniformity Coefficient (CUC), the index Process Capability (CP), Shewhart charts (Xbarra) and the charts of exponentially weighted moving average (EWMA) and cumulative sum (CUSUM) were used. The irrigation sprinkler system showed the best performance and was under control when the average wind speed was less than 1.0 m s-1. The use of individual Shewhart control charts visually allowed affirming that wind has a direct influence on CUC. Night irrigation showed less variability on the studied data, when compared to daytime ones and this has resulted in greater efficiency in irrigation. The CPi index showed great similarity with the Christiansen Uniformity Coefficient (CUC). It proved to be very sensitive to efficiency sprinkler (Ea) variation and able to indicate the quality of sprinkler irrigation. The EWMA chart, when compared to the control charts, was susceptible when used in autocorrelated data, according to the occurrence of false alarms. But, to the residue data without autocorrelation (the ARIMA model), the CUSUM tabular chart was more sensitive to detect variations in irrigation due to wind speed, when compared to EWMA and Shewhart charts for the same data. In sprinkler irrigation, when there is a relation between CUC and wind speed, the Shewhart chart was more indicated by simplicity, reliability and ease of interpretation, even in the presence of autocorrelated data.O sistema de irrigação por aspersão é muito utilizado, devido à possibilidade de elevada uniformidade de distribuição e por adaptar-se às diversas culturas e solos. Porém, a uniformidade de aplicação de água nas irrigações é afetada por fatores meteorológicos que diminuem a eficiência do sistema. A preocupação com a qualidade de produtos e serviços oferecidos sempre esteve presente na história da humanidade, pois para que os produtos fossem aceitos, deveriam possuir características desejáveis pelos consumidores. Atualmente, com o surgimento de novos modelos gerenciais, a melhoria e o monitoramento da qualidade durante o processo de produção tornaram-se uma necessidade para muitas organizações. Assim, aprimorou-se o controle da inspeção por meio de técnicas estatísticas, reduziram-se perdas e foi possível competir no mercado. Neste contexto, o objetivo deste estudo foi avaliar a irrigação em um sistema por aspersão convencional, utilizando o Coeficiente de Uniformidade de Christiansen (CUC), o índice de Capacidade do Processo (CP) para correlacionar as técnicas com a eficiência do sistema, verificar a influência do vento na irrigação pelo gráfico de controle de Shewhart e confrontar os resultados da utilização dos gráficos de controle de Shewhart, com os gráficos de controle MMEP e CUSUM tabular, aplicados no controle de qualidade da irrigação por aspersão convencional. Neste estudo, foram realizados 60 ensaios em um sistema de irrigação por aspersão convencional. O sistema era constituído de quatro aspersores, modelo Xcel-wobbler, altura de 1,0 m em relação ao solo e espaçamento de 6,0 x 6,0 m. Os coletores foram espaçados em 1,0 m entre si com altura de 0,5 m do solo. A pressão de serviço foi monitorada e adequada às especificações dos aspersores, e o vento monitorado in loco, por um anemômetro digital com 2,0 m de altura. Para a avaliação do sistema, foram utilizados o Coeficiente de Uniformidade de Christiansen (CUC), o índice de Capacidade do Processo (CP), gráficos de Shewhart (Xbarra) e os gráficos de média móvel exponencialmente ponderada (MMEP) e de soma cumulativa (CUSUM). O sistema de irrigação por aspersão convencional teve melhor desempenho e esteve sob controle, quando a velocidade média do vento esteve menor que 1,0 m s-1. O uso dos gráficos individuais de controle de Shewhart possibilitou afirmar visualmente que o vento tem influência direta sobre o CUC. A irrigação noturna apresentou menor variabilidade nos dados, quando comparados aos dados do período diurno e isso resultou em maior eficiência na irrigação. O índice CPi teve grande similaridade com o Coeficiente de Uniformidade de Christiansen (CUC); mostrou-se bastante sensível à variação da eficiência de aspersão (Ea) e capaz de indicar a qualidade da irrigação por aspersão. Em comparação aos gráficos de controle, o gráfico MMEP mostrou-se suscetível quando utilizado em dados autocorrelacionados, pelas ocorrências de alarmes falsos. Para dados de resíduos, sem autocorrelação (pelo modelo ARIMA), o gráfico CUSUM tabular foi mais sensível ao detectar as variações ocorridas na irrigação devido à velocidade do vento, quando comparado aos gráficos MMEP e Shewhart para os mesmos dados. Na irrigação por aspersão, relacionando CUC com velocidade do vento, o gráfico de Shewhart foi mais indicado pela simplicidade, confiabilidade e facilidade de interpretação, mesmo na presença de dados autocorrelacionados entre si.Made available in DSpace on 2017-05-12T14:47:09Z (GMT). No. of bitstreams: 1 Jiam Pires_ Frigo.pdf: 2243207 bytes, checksum: 76a818d3ba4a98ecda459c13486050ca (MD5) Previous issue date: 2014-06-02application/pdfporUniversidade Estadual do Oeste do ParanaPrograma de Pós-Graduação "Stricto Sensu" em Engenharia AgrícolaUNIOESTEBREngenhariairrigação diurna e noturnaventoeficiênciaCapacidade do ProcessoCoeficiente de Uniformidade de Christiansendaytime and nighttime irrigationwindefficiencyCapability ProcessChristiansen Uniformity CoefficientCNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLACONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃOSTATISTICAL CONTROL OF QUALITY IN THE SPRINKLER IRRIGATIONinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UNIOESTEinstname:Universidade Estadual do Oeste do Paraná (UNIOESTE)instacron:UNIOESTEORIGINALJiam Pires_ Frigo.pdfapplication/pdf2243207http://tede.unioeste.br:8080/tede/bitstream/tede/208/1/Jiam+Pires_+Frigo.pdf76a818d3ba4a98ecda459c13486050caMD51tede/2082017-05-12 11:47:09.097oai:tede.unioeste.br:tede/208Biblioteca Digital de Teses e Dissertaçõeshttp://tede.unioeste.br/PUBhttp://tede.unioeste.br/oai/requestbiblioteca.repositorio@unioeste.bropendoar:2017-05-12T14:47:09Biblioteca Digital de Teses e Dissertações do UNIOESTE - Universidade Estadual do Oeste do Paraná (UNIOESTE)false
dc.title.por.fl_str_mv CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
dc.title.alternative.eng.fl_str_mv STATISTICAL CONTROL OF QUALITY IN THE SPRINKLER IRRIGATION
title CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
spellingShingle CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
Frigo, Jiam Pires
irrigação diurna e noturna
vento
eficiência
Capacidade do Processo
Coeficiente de Uniformidade de Christiansen
daytime and nighttime irrigation
wind
efficiency
Capability Process
Christiansen Uniformity Coefficient
CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA
title_short CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
title_full CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
title_fullStr CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
title_full_unstemmed CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
title_sort CONTROLE ESTATÍSTICO DA QUALIDADE NA IRRIGAÇÃO POR ASPERSÃO
author Frigo, Jiam Pires
author_facet Frigo, Jiam Pires
author_role author
dc.contributor.advisor1.fl_str_mv Boas, Marcio Antonio Vilas
dc.contributor.advisor1ID.fl_str_mv CPF:55200834600
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723608D4&dataRevisao=null
dc.contributor.referee1.fl_str_mv Hernández, Ricardo Hernández
dc.contributor.referee1ID.fl_str_mv CPF:64353249991
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/0620411908531578
dc.contributor.referee2.fl_str_mv Hermes, Eliane
dc.contributor.referee2ID.fl_str_mv CPF:04429934983
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/6070182918590833
dc.contributor.referee3.fl_str_mv Mello, Eloy Lemos de
dc.contributor.referee3ID.fl_str_mv CPF:02131113900
dc.contributor.referee3Lattes.fl_str_mv http://lattes.cnpq.br/2106300099734952
dc.contributor.referee4.fl_str_mv Siqueira, Jair Antonio Cruz
dc.contributor.referee4ID.fl_str_mv CPF:76514188915
dc.contributor.referee4Lattes.fl_str_mv http://lattes.cnpq.br/5644626331586827
dc.contributor.authorID.fl_str_mv CPF:00436241030
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/6443025153770870
dc.contributor.author.fl_str_mv Frigo, Jiam Pires
contributor_str_mv Boas, Marcio Antonio Vilas
Hernández, Ricardo Hernández
Hermes, Eliane
Mello, Eloy Lemos de
Siqueira, Jair Antonio Cruz
dc.subject.por.fl_str_mv irrigação diurna e noturna
vento
eficiência
Capacidade do Processo
Coeficiente de Uniformidade de Christiansen
topic irrigação diurna e noturna
vento
eficiência
Capacidade do Processo
Coeficiente de Uniformidade de Christiansen
daytime and nighttime irrigation
wind
efficiency
Capability Process
Christiansen Uniformity Coefficient
CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA
dc.subject.eng.fl_str_mv daytime and nighttime irrigation
wind
efficiency
Capability Process
Christiansen Uniformity Coefficient
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA
description The sprinkler irrigation system is widely used because of the possibility of high uniform distribution and to adapt itself to different crops and soils. On the other hand, the water uniform application in irrigation is affected by meteorological factors that decrease the system efficiency. There has always been some concern about the quality of products and services in human history, since all products should have desirable characteristics to be accepted by consumers. Currently, development, improvement and monitoring of new management models quality during the production process have become essential for many organizations. Thus, inspection control has enhanced by statistical techniques, losses have been decreased and it was possible to stimulate some trading competition. In this context, this study aimed at evaluating the irrigation system in a conventional sprinkler using the Christiansen Uniformity Coefficient (CUC) and the index Process Capability (CP) to correlate techniques with the system efficiency as well as verify the wind influence on irrigation by Shewhart control chart and compare the results of Shewhart control charts use with the EWMA and tabular CUSUM control charts, applied in quality control of the conventional sprinkler irrigation. In this study, 60 essays were carried out on a four irrigation sprinklers system, Xcel-Wobbler model, 1.0 m height above soil and 6.0 x 6.0 m spaced. The collectors were 1.0 m spaced apart with 0.5 m height from soil. The service pressure was monitored and appropriate to the sprinklers specifications, while wind was monitored in situ by a 2.0 m high digital anemometer. In order to evaluate the system, Christiansen Uniformity Coefficient (CUC), the index Process Capability (CP), Shewhart charts (Xbarra) and the charts of exponentially weighted moving average (EWMA) and cumulative sum (CUSUM) were used. The irrigation sprinkler system showed the best performance and was under control when the average wind speed was less than 1.0 m s-1. The use of individual Shewhart control charts visually allowed affirming that wind has a direct influence on CUC. Night irrigation showed less variability on the studied data, when compared to daytime ones and this has resulted in greater efficiency in irrigation. The CPi index showed great similarity with the Christiansen Uniformity Coefficient (CUC). It proved to be very sensitive to efficiency sprinkler (Ea) variation and able to indicate the quality of sprinkler irrigation. The EWMA chart, when compared to the control charts, was susceptible when used in autocorrelated data, according to the occurrence of false alarms. But, to the residue data without autocorrelation (the ARIMA model), the CUSUM tabular chart was more sensitive to detect variations in irrigation due to wind speed, when compared to EWMA and Shewhart charts for the same data. In sprinkler irrigation, when there is a relation between CUC and wind speed, the Shewhart chart was more indicated by simplicity, reliability and ease of interpretation, even in the presence of autocorrelated data.
publishDate 2014
dc.date.issued.fl_str_mv 2014-06-02
dc.date.available.fl_str_mv 2015-08-25
dc.date.accessioned.fl_str_mv 2017-05-12T14:47:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
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dc.identifier.citation.fl_str_mv FRIGO, Jiam Pires. STATISTICAL CONTROL OF QUALITY IN THE SPRINKLER IRRIGATION. 2014. 57 f. Tese (Doutorado em Engenharia) - Universidade Estadual do Oeste do Parana, Cascavel, 2014.
dc.identifier.uri.fl_str_mv http://tede.unioeste.br:8080/tede/handle/tede/208
identifier_str_mv FRIGO, Jiam Pires. STATISTICAL CONTROL OF QUALITY IN THE SPRINKLER IRRIGATION. 2014. 57 f. Tese (Doutorado em Engenharia) - Universidade Estadual do Oeste do Parana, Cascavel, 2014.
url http://tede.unioeste.br:8080/tede/handle/tede/208
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dc.publisher.department.fl_str_mv Engenharia
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