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Semi-arranged demand as an energy saving measure for pressurized irrigation networks

Author

Listed:
  • Fernández García, I.
  • González Perea, R.
  • Moreno, M.A.
  • Montesinos, P.
  • Camacho Poyato, E.
  • Rodríguez Díaz, J.A.

Abstract

In many regions, water resource scarcity has required adapting irrigated agriculture towards more efficient water distribution networks and irrigation systems. These systems, however, have higher energy requirements. To overcome this problem, a new semi-arranged demand model combining network sectoring and critical points have been developed. The model computes a new indicator known as the optimal number of disabled hydrants (ONDHY) to determine the number of critical hydrants in the sector that are only allowed to irrigate at off-peak hours, while the rest of non-critical hydrants can irrigate at any time. The proposed model has been applied to each of the 11 irrigation networks in the Bembezar MD irrigation district located in southern Spain. The results showed potential energy savings of 5.6%–25.8% with 14.5% and 7.8% of critical hydrants that could only operate during off-peak hours, respectively, thus satisfying crop irrigation requirements. The proposed methodology is a useful and easy tool to optimize energy consumption in pressurized irrigation networks.

Suggested Citation

  • Fernández García, I. & González Perea, R. & Moreno, M.A. & Montesinos, P. & Camacho Poyato, E. & Rodríguez Díaz, J.A., 2017. "Semi-arranged demand as an energy saving measure for pressurized irrigation networks," Agricultural Water Management, Elsevier, vol. 193(C), pages 22-29.
    • Handle: RePEc:eee:agiwat:v:193:y:2017:i:c:p:22-29
    DOI: 10.1016/j.agwat.2017.07.025
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    References listed on IDEAS

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    1. I. Fernández García & J. Rodríguez Díaz & E. Camacho Poyato & P. Montesinos, 2013. "Optimal Operation of Pressurized Irrigation Networks with Several Supply Sources," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(8), pages 2855-2869, June.
    2. J. Rodríguez Díaz & P. Montesinos & E. Poyato, 2012. "Detecting Critical Points in On-Demand Irrigation Pressurized Networks – A New Methodology," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(6), pages 1693-1713, April.
    3. R. Khadra & M. A Moreno & H. Awada & N. Lamaddalena, 2016. "Energy and Hydraulic Performance-Based Management of Large-Scale Pressurized Irrigation Systems," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(10), pages 3493-3506, August.
    4. Juan Córcoles & José Tarjuelo & Pedro Carrión & Miguel Moreno, 2015. "Methodology to Minimize Energy Costs in an On-Demand Irrigation Network Based on Arranged Opening of Hydrants," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(10), pages 3697-3710, August.
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