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Multi-Objective Optimization Model Based on Localized Loops for the Rehabilitation of Gravity-fed Pressurized Irrigation Networks

Author

Listed:
  • Abdelouahid Fouial

    (Mediterranean Agronomic Institute of Bari
    University of Bologna)

  • Irene Fernández García

    (University of Cordoba)

  • Cristiana Bragalli

    (University of Bologna)

  • Nicola Lamaddalena

    (Mediterranean Agronomic Institute of Bari)

  • Juan Antonio Rodríguez Diaz

    (University of Cordoba)

Abstract

Nowadays, some of the existing irrigation distribution networks (IDNs) are facing hydraulic performance problems, due partly to the ageing of pipe networks, initial design flaws, improper management or/and the increase in water demand. Rehabilitation of these networks may become an inevitable need to provide the best services to farmers. To this end, a comprehensive computer model was developed to assist planners and decision makers in the determination of the most cost-effective strategy for the rehabilitation of irrigation networks. This model incorporates an innovative algorithm for the automatic search of the best looping positions in the network. Two multi-objective optimizations were applied for the rehabilitation of a real medium-size network operating on-demand and by gravity, one included the looping option while the other excluded this option. The two Pareto fronts, associated with each optimization, clearly indicated that it is imperative to consider the localized loops option during the rehabilitation process as it provided superior cost-effective solutions. The comparison between two selected cases from each front showed that even though the two solutions offered the same magnitude of improvement to the network, a cost saving of about 77% is obtained by choosing the case with the looping option. The model developed in the framework of this work represents a powerful optimization tool for cost-effective rehabilitation of irrigation networks.

Suggested Citation

  • Abdelouahid Fouial & Irene Fernández García & Cristiana Bragalli & Nicola Lamaddalena & Juan Antonio Rodríguez Diaz, 2018. "Multi-Objective Optimization Model Based on Localized Loops for the Rehabilitation of Gravity-fed Pressurized Irrigation Networks," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 32(2), pages 465-480, January.
    • Handle: RePEc:spr:waterr:v:32:y:2018:i:2:d:10.1007_s11269-017-1821-4
    DOI: 10.1007/s11269-017-1821-4
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    References listed on IDEAS

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    1. Salah Saleh & Tiku Tanyimboh, 2013. "Coupled Topology and Pipe Size Optimization of Water Distribution Systems," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(14), pages 4795-4814, November.
    2. Qi Wang & Enrico Creaco & Marco Franchini & Dragan Savić & Zoran Kapelan, 2015. "Comparing Low and High-Level Hybrid Algorithms on the Two-Objective Optimal Design of Water Distribution Systems," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(1), pages 1-16, January.
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    Cited by:

    1. Giacomo Ferrarese & Alessandro Pagano & Umberto Fratino & Stefano Malavasi, 2021. "Improving Operation of Pressurized Irrigation Systems by an Off-grid Control Devices Network," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(9), pages 2813-2827, July.
    2. Nicola Lamaddalena & Abdelouahid Fouial, 2019. "Sensitivity Indicator for Pressurized Irrigation Distribution Systems," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 33(6), pages 1985-1998, April.

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