Distribuição de pressão em rede de irrigação localizada otimizada por algoritmos genéticos

Marcuzzo, Francisco Fernando Noronha; Wendland, Edson

doi:10.1590/s0100-69162011000300010

Cited by 3 publications

(2 citation statements)

References 7 publications

(5 reference statements)

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“…The complete algorithm for the optimized design is in [20] and each analysis step for better presentations is in [21] [22]. The sensitivity analysis can be finding in [23].…”

Section: Methodsmentioning

confidence: 99%

The Optimization of Irrigation Networks Using Genetic Algorithms

Marcuzzo¹,

Wendland²

2014

JWARP

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Mathematical-computational optimisation models of irrigation networks with a distributed flow that are capable of providing hydraulic data are important for understanding the behaviour of a system in relation to the distribution of the hydraulic head (energy) and the pressure in the pipes of the network. The objective of this study was to examine the distribution of the parameters of hydraulic irrigation pipes, which were optimised using genetic algorithms. The degree of the optimisation was evaluated with the help of the genetic algorithms based on the diameters of stretch of the network: two for the lateral lines, four for the derivation lines, four for the secondary lines and one for the main line. A MatLab code was developed that considered all of the losses of energy, both distributed losses and those at specific locations between the beginning of the network and the pump system. The sensitivity analysis was based on the variations in the slope of the ground (0%, 2.5% and 5%). The results show that for pipes with a distributed flow, the influence of the behaviour of the kinetic energy in the pipe contributed to the distance between the energy lines and the piezometric lines at the beginning of each stretch after the decrease in the diameter of the pipes. At the end of the pipes, the values of the energy lines and the piezometric lines were very similar, and they were essentially the same for the final emitter.

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“…The complete algorithm for the optimized design is in [20] and each analysis step for better presentations is in [21] [22]. The sensitivity analysis can be finding in [23].…”

Section: Methodsmentioning

confidence: 99%

The Optimization of Irrigation Networks Using Genetic Algorithms

Marcuzzo¹,

Wendland²

2014

JWARP

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“…One of the variations can be observed in undulating areas where there is variability in the internal pressure of the lateral line, which changes the flow rate (Marcuzzo & Wendland, 2011). Furthermore, downslope lateral lines can obtain greater lengths due to the higher inlet pressure, according to an analytical method of dimensioning developed by Khemaies et al (2013) for localized irrigation.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic performance of drippers with different waters and lateral line slopes

Szekut

Azevedo

Boas

et al. 2018

Rev. bras. eng. agríc. ambient.

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The operation of drip lateral lines is affected by the topography of the irrigated area and represent, depending on the type of water applied, changes in the discharge characteristics of the emitters. The research had as objective to evaluate the hydraulic performance of built-in labyrinth drippers, non-pressure compensating, with different waters and slopes of the lateral lines. The experiment was carried out on a test bench and consisted of a randomized block design with split-plots: first factor with four types of water, representing the plots: clean water, water with fertilizers, cassava starch wastewater and poultry slaughterhouse wastewater; second factor with slopes of the lateral line, constituting the sub-plots: upslope, level and downslope. The experimental statistics consisted of analysis of variance with subsequent simple-effect analysis and Tukey test at 0.05 probability level to compare the means of dripper flow rates. Quality control statistics was performed using Shewhart’s control charts with interpretations based on upper and lower control limits, as well as non-random pattern recognition. Waters of inferior quality modified the flow rates of the tested drippers regardless of the variation of internal pressure caused by the slope of the lateral line. Water with fertilizer (300 mg L-1) obtained the best conditions of temporal irrigation quality verified by the control charts. Irrigation with poultry slaughterhouse wastewater obtained the same flow rates in all slopes. Cassava starch wastewater caused the lowest flow rates among all the waters.

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Uniformity of Drip Irrigation System With Liquid Peat on Different Slopes

Lopes

Boas²,

Pazuch³

et al. 2021

R_I

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UNIFORMITY OF DRIP IRRIGATION SYSTEM WITH LIQUID PEAT ON DIFFERENT SLOPES ALLAN REMOR LOPES1; MARCIO ANTONIO VILAS BOAS1; FELIX AUGUSTO PAZUCH1; LUCIANO DALLA CORTE1; BENEDITO MARTINS GOMES1; ROSEBEL TRINDADE CUNHA PRATES2 1 Programa de Pós-Graduação em Engenharia Agrícola (PGEAGRI) – Departamento de Recursos Hídricos e Saneamento Ambiental (RHESA), Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária 2069, Jardim Universitário, CEP: 85819-110, Cascavel, Paraná, Brasil, allanremorlopes@gmail.com; marcio.vilasboas@unioeste.br; felix_pazuch@hotmail.com; dallacorte@hotmail.com; bmgomes2002@yahoo.com.br 2Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rodovia PR 182 Km 02, Francisco Beltrão, Paraná, Brasil, rosebel.prates@gmail.com 1 ABSTRACT The use of liquid peat is an alternative to use of mineral fertigation However, it is necessary to monitor the uniformity of this organomineral fertilizer in order to obtain its adequate use, so the organomineral fertilizer can produce better quality crops. This study aimed to evaluate the uniformity of a drip fertigation system with liquid peats on different slopes. The experiment was carried out on a test bench, where the flow rate of the drippers was determined and subsequently its uniformity was calculated using the Christiansen uniformity coefficient (CUC) fot the treatments in level (0%), uphill (2%) and downhill (2%). The experimental statistics were performed by analysis of variance (ANOVA) and Tukey’s test at 5% probability to compare uniformity, in addition to the analysis of the process by Shewhart and CUSUM control charts. Liquid peat showed excellence in its uniformity (>90%) while used for drip irrigation systems. The liquid peat applied at the level slope was the most uniform, followed by upslope and downslope treatments, respectively. Through Shewhart and CUSUM control charts, it was possible to affirm that fertigation with liquid peat in level obtained a better performance. Keywords: control chart, uniformity, organomineral fertilizer, microirrigation. LOPES, A. R.; VILAS BOAS, M. A.; PAZUCH, F. A.; DALLA CORTE, L.; GOMES, B. M.; PRATES, R. T. C. UNIFORMIDADE DE SISTEMA DE IRRIGAÇÃO POR GOTEJAMENTO COM TURFA LÍQUIDA EM DIFERENTES INCLINAÇÕES 2 RESUMO O uso da turfa líquida é uma alternativa ao uso da fertirrigação mineral. No entanto, é necessário o monitoramento da uniformidade deste fertilizante organomineral para obter seu uso adequado, assim o fertilizante organomineral pode produzir culturas de melhor qualidade. O objetivo deste estudo foi avaliar a uniformidade de um sistema de fertirrigação por gotejamento com turfa líquida em diferentes inclinações. O experimento foi conduzido em uma bancada de testes, onde a vazão dos gotejadores foi determinada e consequentemente sua uniformidade pelo Coeficiente de uniformidade de Christiansen (CUC) para os tratamentos em nível (0%), aclive (2%) e declive (2%). A estatística experimental foi determinada pela análise de variância (ANOVA) e teste de Tukey a 5% de probabilidade na comparação da uniformidade, complementando os gráficos de controle de Shewhart e CUSUM. A turfa líquida apresentou excelência na sua uniformidade (> 90%) em sistemas de irrigação por gotejamento. A turfa aplicada em nível (0%) foi a mais uniforme, seguido pelos tratamentos em aclive e declive, respectivamente. Através dos gráficos de controle de Shewhart e CUSUM foi possível afirmar que a fertirrigação em nível obteve uma melhor performance. Palavras-chave: gráficos de controle, uniformidade, fertilizante organomineral, microirrigação.

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Distribuição de pressão em rede de irrigação localizada otimizada por algoritmos genéticos

Cited by 3 publications

References 7 publications

The Optimization of Irrigation Networks Using Genetic Algorithms

The Optimization of Irrigation Networks Using Genetic Algorithms

Hydraulic performance of drippers with different waters and lateral line slopes

Uniformity of Drip Irrigation System With Liquid Peat on Different Slopes

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