A Graph-Theory Based PRV Placement Algorithm for Reducing Water Age in Water Distribution Systems

Tomer Shmaya, Avi Ostfeld

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Water age is the time taking the water to travel through a distribution system and reach the consumer. Generally, there is a trade-off between water pressure and water age in a water distribution system - higher pressure results in higher flow velocity, which often means shorter travelling time for the water, while lower pressure leads to slower flow and thus higher water age. Low pressure is a desired objective in a distribution system, as it reduces the physical stress on its components and minimizes water losses in an event of a leak. Low water age is a desired objective as well, as increased age is regarded as low water quality. Therefore, the two objectives compete with one another. The problem of trying to minimize both water pressure and age is a common problem in water distribution system design and management. This paper introduces an algorithm for pressure reducing valve (PRV) placement for reducing water age in water distribution systems. The algorithm is based on graph-theory elements and uses EPANET 2.2 for simulation and analysis. The method is demonstrated on a small-scale example, and the results present relatively significant improvements in respect to water age.

Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2023
Subtitle of host publicationAdaptive Planning and Design in an Age of Risk and Uncertainty - Selected Papers from World Environmental and Water Resources Congress 2023
EditorsSajjad Ahmad, Regan Murray
Pages807-816
Number of pages10
ISBN (Electronic)9780784484852
DOIs
StatePublished - 2023
EventWorld Environmental and Water Resources Congress 2023: Adaptive Planning and Design in an Age of Risk and Uncertainty - Henderson, United States
Duration: 21 May 202325 May 2023

Publication series

NameWorld Environmental and Water Resources Congress 2023: Adaptive Planning and Design in an Age of Risk and Uncertainty - Selected Papers from World Environmental and Water Resources Congress 2023

Conference

ConferenceWorld Environmental and Water Resources Congress 2023: Adaptive Planning and Design in an Age of Risk and Uncertainty
Country/TerritoryUnited States
CityHenderson
Period21/05/2325/05/23

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Pollution
  • Management, Monitoring, Policy and Law
  • Environmental Engineering

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