Optimal Operation of Pressurized Irrigation Networks with Several Supply Sources

I. Fernández García (), J. Rodríguez Díaz (), E. Camacho Poyato () and P. Montesinos ()

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2013, vol. 27, issue 8, 2855-2869

Abstract: The evolution of water distribution systems to pressurized networks has improved water use efficiency, but also significantly increased energy consumption. However, sustainable irrigated agriculture must be characterized by the reasonable and efficient use of both water and energy. Irrigation sectoring where farmers are organized in turns is one of the most effective measures to reduce energy use in irrigation water distribution networks. Previous methodologies developed for branched irrigation networks with one single source node have resulted in considerable energy savings. However, these methodologies were not suitable for networks with several water supply points. In this work, we develop an optimization methodology (WEBSOM) aimed at minimizing energy consumption and based on operational sectoring for networks with several source nodes. Using the NSGA-II multi-objective genetic algorithm, the optimal sectoring operation calendar that minimizes both energy consumption and pressure deficit is obtained. This methodology is tested in the irrigation district of Palos de la Frontera (Huelva, Spain) with three pumping stations, showing that potential annual energy savings of between 20 % and 29 % can be achieved, thus ensuring full pressure requirements in nearly all hydrants, along with the total satisfaction of irrigation requirements. Copyright Springer Science+Business Media Dordrecht 2013

Keywords: Energy efficiency; Genetic algorithms; Water distribution systems; Spain (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (19)

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DOI: 10.1007/s11269-013-0319-y

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