The division of water distribution networks (WDNs) into district metering areas (DMAs) is a challenging issue and can be effective for analysis, planning, and management purposes. This contribution proposes a novel two-step strategy for DMA planning. The first step is optimal segmentation design by maximizing the WDN-oriented modularity index versus minimizing the number of conceptual cuts (i.e., not accounting for devices). The second step is the actual optimal DMA design, returning the positions of flow meters and closed valves at the conceptual cuts. Since closed valves change the system's hydraulic paths, the implementation of DMAs could allow reductions in pressure and leakages through the WDN. Optimal DMA design is therefore achieved by solving a three-objective optimization minimizing the number of flow meters and total unsupplied customer demand while maximizing the reduction of background leakages; thus, pressure-driven modeling is mandatory. The effectiveness and flexibility of the procedure is demonstrated using the Apulian and Exnet networks. Results shows that DMA implementation can allow leakage reduction in systems with excess hydraulic capacity. © 2017 American Society of Civil Engineers.

Optimal design of district metering areas for the reduction of leakages

Berardi L.;
2017

Abstract

The division of water distribution networks (WDNs) into district metering areas (DMAs) is a challenging issue and can be effective for analysis, planning, and management purposes. This contribution proposes a novel two-step strategy for DMA planning. The first step is optimal segmentation design by maximizing the WDN-oriented modularity index versus minimizing the number of conceptual cuts (i.e., not accounting for devices). The second step is the actual optimal DMA design, returning the positions of flow meters and closed valves at the conceptual cuts. Since closed valves change the system's hydraulic paths, the implementation of DMAs could allow reductions in pressure and leakages through the WDN. Optimal DMA design is therefore achieved by solving a three-objective optimization minimizing the number of flow meters and total unsupplied customer demand while maximizing the reduction of background leakages; thus, pressure-driven modeling is mandatory. The effectiveness and flexibility of the procedure is demonstrated using the Apulian and Exnet networks. Results shows that DMA implementation can allow leakage reduction in systems with excess hydraulic capacity. © 2017 American Society of Civil Engineers.
File in questo prodotto:
File Dimensione Formato  
Optimal Design of District Metering Areas for the Reduction of Leakages (JWRPM 2017).pdf

Solo gestori archivio

Tipologia: PDF editoriale
Dimensione 1.57 MB
Formato Adobe PDF
1.57 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Optimal Design of District Metering Areas for the Reduction of Leakages_accepted.pdf

accesso aperto

Tipologia: Documento in Post-print
Dimensione 2.07 MB
Formato Adobe PDF
2.07 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11564/706566
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 41
  • ???jsp.display-item.citation.isi??? 36
social impact