Accounting for Phasing of Isolation Valve Installation in Water Distribution Networks

Seungyub Lee, Donghwi Jung

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This study investigates the effect of applying scenario-based phase designs for isolation valve installation by developing an optimal multiphase valve design model while previous research focused on the single-phase design approach. During the design period, scenarios such as demand change, pipe breakage, and pipe age were considered. The model was applied to a medium-sized water distribution network, and optimal valve locations and installation timing for both single-phase and multiphase designs were determined. For the single-phase design, all valve locations were determined by forecasting changes in the future, while for the multiphase design, valves are added at the start of each phase. The results show that the single-phase design approach is more reliable and has fewer shortages than the multiphase design approach; however, the latter enables the determination of the valve installation locations based on need (e.g., the demand and changes in the pipe roughness and breakage probability). Further, cost and energy analyses show that the multiphase approach provides benefits such as low maintenance/operation costs.

Original languageEnglish
Article number06021007
JournalJournal of Water Resources Planning and Management
Issue number7
Publication statusPublished - 2021 Jul 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1C1C1006481).

Publisher Copyright:
© 2021 American Society of Civil Engineers.


  • Optimal valve installation
  • Segment
  • Water distribution network

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Water Science and Technology
  • Management, Monitoring, Policy and Law


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