Network Analysis, Control Valve Placement and Optimal Control of Flow Velocity for Self-Cleaning Water Distribution Systems

Edo Abraham, EJM Blokker, Ivan Stoianov

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

3 Citations (Scopus)

Abstract

In this paper, we consider the proactive control of flow velocities to maximise the self-cleaning capacity of the drinking water distribution systems under normal operations both through a change of the network topology and through an optimal control of pressure reducing valve (PRV) settings. Inspired by line outage flow distribution in electrical networks, we show how a fast network graph analysis of link closures can be used to estimate the potential changes in flow velocities, which are then used to determine the most favourable pipes for closure. Where closing of pipes cannot be used because of other conflicting objectives, we consider the optimal control of PRVs to maximise self-cleaning at peak demand periods. We formulate a novel optimisation problem to maximise the network operations for increased self-cleaning capacity, while satisfying hydraulic and regulatory pressure constraints at demand nodes. A new smooth objective function approximation for cleaning capacity of the network is proposed along with a scalable sequential convex programming method to solve the resulting valve optimization problems. We use a published benchmark network as a case study to show the efficacy of these new approaches.
Original languageEnglish
Title of host publication18th Conference on Water Distribution System Analysis
Subtitle of host publicationLos Andes, Colombia
PublisherElsevier
Pages576-583
Volume186
DOIs
Publication statusPublished - May 2017
Externally publishedYes
Event18th Conference on Water Distribution System Analysis - Los Andes, Colombia
Duration: 24 Jul 201628 Jul 2016
Conference number: 18
https://wdsa2016.uniandes.edu.co/

Conference

Conference18th Conference on Water Distribution System Analysis
Abbreviated titleWDSA2016
CountryColombia
CityLos Andes
Period24/07/1628/07/16
Internet address

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