Diseño óptimo de redes de riego a turnos y caracterización de su flexibilidad

Pérez-García, Rafael; Aliod-Sebastián, Ricardo; Martínez-Solano, F. Javier

doi:10.24850/j-tyca-2020-01-07

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…Networks must be designed to meet minimum technical requirements such as functionality, service capacity, and durability [14]. These predominantly branched networks are sized using technical and financial optimization techniques, aiming to minimize a function encompassing fixed installation and operating costs [15] or only operating costs [16]. Some projects focus solely on speed criteria for sizing [17].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Collective Irrigation Network Layout through the Application of the Analytic Hierarchy Process (AHP) Multicriteria Analysis Method

González-Pavón,

Palau,

Juárez

et al. 2024

Water

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On numerous occasions, we often have very little information or must make a decision considering qualitative aspects that are difficult to evaluate. This study focuses on obtaining objective criteria to assist in decision-making in the design phase of pressurized water pipes in collective irrigation networks. In the layout of these networks, various types of paths and roads for laying pipes can be encountered, and it is not always a simple task to obtain the least costly layout or the one with the fewest issues during construction. In order to obtain objective results, different layout alternatives are evaluated using the Analytic Hierarchy Process (AHP) Multicriteria Analysis Methodology and the Dijkstra algorithm to obtain optimal solutions. This is applied to twelve case studies where the types of available layout paths are identified as alternatives, and four criteria are established for their evaluation. Recognized experts in irrigation modernization conduct the evaluation to derive weighting coefficients for selecting the optimal layout. The coefficients or resistances obtained weigh the lengths of the pipes, allowing the selection of the most suitable alternative based on the defined criteria. The results are compared with a network designed by an expert using classical methodologies, revealing cost improvements in the design phase and a reduction in conflict points, thus leading to faster execution of the works.

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Section: Introductionmentioning

confidence: 99%

Optimization of Collective Irrigation Network Layout through the Application of the Analytic Hierarchy Process (AHP) Multicriteria Analysis Method

González-Pavón,

Palau,

Juárez

et al. 2024

Water

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“…

In the recent times, due to increasing water scarcity, irrigation districts in arid and semiarid regions have been dealing with the difficult challenge of reducing water demand (Belaud et al, 2020;Mireya Lapo et al, 2020). In the last two decades, the goal "more crop per drop" has fostered improvements in hydraulic infrastructures, by replacing old open channel networks with pressurized systems.

…”

mentioning

confidence: 99%

Exploring the Optimal Location of Pumps as Turbines Within Branched Irrigation Networks by Global Optimization

Morani

Chacón

Morillo

et al. 2023

Water Resources Research

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In this study a new procedure to address the optimization of the location and selection of pumps as turbines (PATs) within irrigation networks is presented in order to reduce network pressure and recover energy. The proposed procedure consists of two steps: in the first step the optimization of the location of devices is performed, then the optimal selection and regulation is investigated in the second step. Two new mixed integer non‐linear models have been developed and a global optimization solver has been employed to perform both optimization procedures. The procedure has been tested on a real irrigation network in Spain. The entire 2015 irrigation season has been used to properly model the water demand within the system. According to the results, the optimal solution consists of 5 PATs, installed in the middle region of the system. The investment cost has been estimated as 169,278 € with a payback period of almost 4.2 irrigation seasons. According to the solution, the effective amount of produced energy is equal to 289 MWh if the system is properly regulated and the pressure exceeding the minimum requirements is exploited to produce energy. Compared to other studies in literature focused on irrigated agriculture, the number of PATs is not fixed but rather it results from the maximization of the energy recovery and the minimization of capital costs, simultaneously. Moreover, the proposed procedure relies on a deterministic approach, achieving promising results in terms of accuracy.

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Análisis hidráulico de la red presurizada de la sección 01 del Distrito de Riego 001 ante diferentes escenarios de operación

Galván-Cano,

Exebio-García,

Prado-Hernández

et al. 2023

Tecnol. cienc. agua

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La modernización del Distrito de Riego 001 inició en 2004, actualmente sigue en proceso de construcción y operando las secciones de riego completamente terminadas. El proyecto presenta cambios constructivos y de operación respecto al original, por lo que se planteó como objetivo analizar el comportamiento hidráulico de la red de distribución de la sección 01 en siete escenarios de operación, para identificar el más idóneo para el manejo del riego. La demanda de los 126 hidrantes de la sección de estudio se obtuvo por gasto modular, asignando aleatoriamente uno de los cultivos del patrón. Se consideraron el patrón de cultivos e intervalo de riego actuales, y una precipitación nula en todos los escenarios. Los tres primeros escenarios consideran una distribución por turnos, con diferencias en las necesidades de riego y en las láminas horarias de los emisores. El cuarto escenario consideró una distribución mixta por turnos y a la demanda. Estos cuatro escenarios consideraron un intervalo de riego de 48 horas, tiempo de riego de 3.2 horas por turno y fueron simulados en el programa EPANET. El quinto, sexto y séptimo escenario consideraron una distribución a la demanda, aplicando la primera fórmula generalizada de Clément, con una garantía de suministro de 90, 95 y 99 %, respectivamente, con un intervalo de riego diario, y se implementaron en MATLAB. Los resultados indicaron que la red no está capacitada para operar con un riego a la demanda y que, ante el patrón actual de cultivos, un riego por turnos estrictos es una mejor opción.

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Diseño óptimo de redes de riego a turnos y caracterización de su flexibilidad

Cited by 3 publications

References 15 publications

Optimization of Collective Irrigation Network Layout through the Application of the Analytic Hierarchy Process (AHP) Multicriteria Analysis Method

Optimization of Collective Irrigation Network Layout through the Application of the Analytic Hierarchy Process (AHP) Multicriteria Analysis Method

Exploring the Optimal Location of Pumps as Turbines Within Branched Irrigation Networks by Global Optimization

Análisis hidráulico de la red presurizada de la sección 01 del Distrito de Riego 001 ante diferentes escenarios de operación

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