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Cost Reduction in Pressurized Irrigation Networks under a Rotation Schedule

Author

Listed:
  • Joaquin Monserrat

    (University of Lleida)

  • Andres Alduan

    (University of Lleida)

Abstract

Rotation scheduling implies a reduction in pipe flows and, consequently, in network cost. This kind of scheduling is considered rigid, but the recent development of new technologies, such as Supervisory Control And Data Acquisition systems (SCADA), has allowed high-frequency irrigation (1 day or less), making it an interesting option when either designing or managing an irrigation network. In this paper, simple formulas and relevant variables are presented to easily assess the relative flow reduction in networks under a rotation schedule. The flow reduction depends on the number of outlets supplied and the probability of these being opened. The presented equations were applied to different networks, and the results obtained were accurate, with an average error of only 5%. It was observed that the ratio between relative cost reduction and the relative flow reduction had a mean value of 0.50. This ratio might be used to roughly estimate the cost reduction from the calculated relative flow reduction. The flexibility of the networks under a rotation schedule was improved by adding just one outlet flow rate to those used to size the pipes.

Suggested Citation

  • Joaquin Monserrat & Andres Alduan, 2020. "Cost Reduction in Pressurized Irrigation Networks under a Rotation Schedule," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(10), pages 3279-3290, August.
    • Handle: RePEc:spr:waterr:v:34:y:2020:i:10:d:10.1007_s11269-020-02612-6
    DOI: 10.1007/s11269-020-02612-6
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    Cited by:

    1. Younes Aminpour & Nicola Lamaddalena & Eisa Maroufpoor, 2022. "Investigation of Infrastructural and Management Actions to Increase the Resilience of Existing Pressurized Irrigation Networks," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(15), pages 6073-6092, December.

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