Energy and water management for drip-irrigation of tomatoes in a semi- arid district

Yahyaoui, Imene; Tadeo, Fernando; Segatto, Marcello Vieira

doi:10.1016/j.agwat.2016.08.003

Cited by 36 publications

(15 citation statements)

References 30 publications

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“…This fitness is defined as the sum of the cost of the system (cost of the delivery pipe, cost of the pump, cost of the tank and cost of the PV plant) plus a penalty function to consider the supply deficit. A supply deficit occurs when one specific induvial (system design) is unable to supply the target water demands for irrigation (see Equation (13)).…”

Section: Objective Functionmentioning

confidence: 99%

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Multistage Bounded Evolutionary Algorithm to Optimize the Design of Sustainable Photovoltaic (PV) Pumping Irrigation Systems with Storage

et al. 2020

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Small off-grid photovoltaic (PV) pumping irrigation systems with storage tanks are an environmentally friendly, cost effective and efficient way of taking advantage of solar energy to irrigate crops, and they are increasingly being used today. However, finding the optimal design of this type of system is cumbersome since there are many possible designs. In this work, a new heuristic method based on the hybrid approach, which uses search space reduction, is developed and adapted to the optimal design for this type of PV irrigation system. At different stages, the proposed approach iteratively combines a bounding strategy based on the application of engineering rules with the aim of reducing the search space with a genetic algorithm to find the optimal design within this search space. The proposed methodology was applied to minimize the cost of a benchmark case study consisting of a real farm placed in the province of Almería (Spain). The proposed methodology was able to provide a faster and an accurate convergence due to the reduction of the search space. This fact led to a reduced total cost of the system. This study proved that the most sensitive variables were the number of modules and the type of pump, whereas the diameter of the pipe and volume of the storage tank remained more stable.

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Section: Objective Functionmentioning

confidence: 99%

“…For example, Glasnovic and Margeta [4] developed a simulation model in order to find the optimal solution by performing a sensitivity analysis. Yahyaoui et al [13] developed an algorithm for sizing PV irrigation systems for tomato crops. Campana et al [14] followed a similar approach.…”

Section: Introductionmentioning

confidence: 99%

Multistage Bounded Evolutionary Algorithm to Optimize the Design of Sustainable Photovoltaic (PV) Pumping Irrigation Systems with Storage

et al. 2020

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“…In this new scenario, and considering the current state of the technology, this approach deals with the advantages of solar energy as a green alternative [12,14]; however, it deals with the problem as a new optimization irrigation schedule minimizing the number of PV panels to be installed while also minimizing the energy requirements of the system. Some previous research has already faced this problem without considering the synchronization between the energy available and the energy required by pumping devices [20]. Some other works [21,22] solve this synchronization problem by considering a fixed number of PV panels (and also the available energy).…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption Optimization in Irrigation Networks Supplied by a Standalone Direct Pumping Photovoltaic System

2018

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Due to the fact that irrigation networks are water and energy hungry and that both resources are scarce, many strategies have been developed to reduce this consumption. Solar energy sources have emerged as a green alternative with lower energy costs and, consequently, lower environmental impacts. In this work, a new methodology is proposed to select a scheduled program for irrigation which minimizes the number of photovoltaic solar panels to be installed and which better fits energy consumption (calculated for discrete potential combinations, assisted by programming software) to available energy obtained by panels without any power conditioning unit. Thus, the irrigation hours available to satisfy the water demands are limited by sunlight, the schedule type of irrigation has to be rigid (rotation predetermined), and the pressure at any node has to be above the minimum pressure required by standards. A case study was undertaken and, after running the software 10 5 times, the best result was an irrigation schedule which satisfied all the requirements, involving the installation of 651 solar panels and energy consumption of 428.74 kWh per day, to deliver water to orchards of different varieties of citrus fruit spread over 167.7 ha.

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“…Carrillo Cobo et al (2014) combinó la sectorización de redes de distribución de agua de riego con la energía solar como fuente parcial de suministro, estimando un 72% de ahorro en el coste energético. Yahyaoui et al (2016) desarrolló un modelo para la gestión del suministro energético mediante energía fotovoltaica y el apoyo con baterías para el llenado del embalse que alimenta a la red de riego.…”

Section: -Introducciónunclassified

Sincronización de la producción fotovoltaica y el calendario de riego en olivar en la zona mediterránea

García¹,

García²,

Poyato³

et al. 2017

XXXV Congreso Nacional De Riegos

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ResumenLa modernización del sector del regadío ha implicado su transformación hacia redes a presión, con el consiguiente aumento en la dependencia energética de las explotaciones agrícolas de regadío. De forma paralela, la intensificación del olivar, así como la respuesta positiva del cultivo al aporte de agua en términos de productividad, ha motivado la puesta en riego de numerosas explotaciones. Dado que la campaña de riego en olivar coincide con el periodo de mayor radiación en la zona mediterránea, la incorporación de la energía fotovoltaica como fuente de suministro energético ofrece una alternativa viable y sostenible. El principal inconveniente radica en la variabilidad de la radiación tanto horaria como diaria, lo que requiere nuevas formas de gestión. El objetivo de este trabajo ha sido desarrollar un sistema de riego solar inteligente, capaz de sincronizar la producción fotovoltaica con la demanda diaria de agua y energía de los distintos sectores que componen una red de riego. Para ello el sistema aplica la dosis de riego automáticamente según un orden de prioridades establecido a través de la potencia solar generada y requerida por los sectores, determinando la secuencia de activación de los mismos. Al final del día, el modelo establece un balance de agua en el suelo, el cual permite determinar si es necesario aplicar correcciones sobre el tiempo de riego previsto para el día siguiente. Estas correcciones se deben a la diferencia entre el volumen de riego requerido y el aplicado, que será función de la disponibilidad de radiación. Así, al final de la campaña, el volumen total aplicado coincide con la dotación asignada. Finalmente, se llevó a cabo la simulación de una campaña de riego para una parcela de olivar en Córdoba, para la cual el sistema consiguió proveer de energía a la red de riego de forma satisfactoria. De este modo, la integración de la energía solar como fuente de suministro energético ofrece una alternativa real, sostenible y viable para el sector del regadío. 1-IntroducciónLa demanda energética por parte de las explotaciones de regadío ha aumentado de forma considerable tras la modernización del sector. Paralelamente, el precio de la energía eléctrica y el combustible fósil ha seguido una marcada tendencia creciente. Debido a ello, el coste de la energía representa, a día de hoy, un importante porcentaje de los costes totales de operación de muchas de las explotaciones agrícolas. En el caso concreto del olivar, el coste ligado al riego supone en torno a un 20% de los costes totales de operación (AEMO, 2010) (Figura 1). Al mismo tiempo, a las cuestiones económicas se suma la creciente preocupación ambiental ligada a la contaminación atmosférica y el calentamiento global, demandando con urgencia la búsqueda de fuentes de energía alternativas y sostenibles que garanticen el suministro y rentabilidad de las explotaciones, manteniendo los niveles de producción actuales.

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Energy and water management for drip-irrigation of tomatoes in a semi- arid district

Cited by 36 publications

References 30 publications

Multistage Bounded Evolutionary Algorithm to Optimize the Design of Sustainable Photovoltaic (PV) Pumping Irrigation Systems with Storage

Multistage Bounded Evolutionary Algorithm to Optimize the Design of Sustainable Photovoltaic (PV) Pumping Irrigation Systems with Storage

Energy Consumption Optimization in Irrigation Networks Supplied by a Standalone Direct Pumping Photovoltaic System

Sincronización de la producción fotovoltaica y el calendario de riego en olivar en la zona mediterránea

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