Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality Models

Urban looped water distribution systems are highly vulnerable to water quality issues. They could be subject to contamination events (accidental or deliberate), compromising the water quality inside them and causing damage to the users’ health. An efficient monitoring system must be developed to pre...

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Main Authors: Stefania Piazza, Mariacrocetta Sambito, Gabriele Freni
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/15/3/559
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author Stefania Piazza
Mariacrocetta Sambito
Gabriele Freni
author_facet Stefania Piazza
Mariacrocetta Sambito
Gabriele Freni
author_sort Stefania Piazza
collection DOAJ
description Urban looped water distribution systems are highly vulnerable to water quality issues. They could be subject to contamination events (accidental or deliberate), compromising the water quality inside them and causing damage to the users’ health. An efficient monitoring system must be developed to prevent this, supported by a suitable model for assessing water quality. Currently, several studies use advective–reactive models to analyse water quality, neglecting diffusive transport, which is claimed to be irrelevant in turbulent flows. Although this may be true in simple systems, such as linear transport pipes, the presence of laminar flows in looped systems may be significant, especially at night and in the peripheral parts of the network. In this paper, a numerical optimisation approach has been compared with the results of an experimental campaign using three different numerical models as inputs (EPANET advective model, the AZRED model in which diffusion–dispersion equations have been implemented, and a new diffusive–dispersive model in dynamic conditions using the random walk method, EPANET-DD). The optimisation problem was formulated using the Monte Carlo method. The results demonstrated a significant difference in sensor placement based on the numerical model.
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spelling doaj.art-b3922c8020eb49408475e22ce6a9fe082023-11-16T18:24:20ZengMDPI AGWater2073-44412023-01-0115355910.3390/w15030559Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality ModelsStefania Piazza0Mariacrocetta Sambito1Gabriele Freni2School of Engineering and Architecture, University of Enna “Kore”, Cittadella Universitaria, 94100 Enna, ItalySchool of Engineering and Architecture, University of Enna “Kore”, Cittadella Universitaria, 94100 Enna, ItalySchool of Engineering and Architecture, University of Enna “Kore”, Cittadella Universitaria, 94100 Enna, ItalyUrban looped water distribution systems are highly vulnerable to water quality issues. They could be subject to contamination events (accidental or deliberate), compromising the water quality inside them and causing damage to the users’ health. An efficient monitoring system must be developed to prevent this, supported by a suitable model for assessing water quality. Currently, several studies use advective–reactive models to analyse water quality, neglecting diffusive transport, which is claimed to be irrelevant in turbulent flows. Although this may be true in simple systems, such as linear transport pipes, the presence of laminar flows in looped systems may be significant, especially at night and in the peripheral parts of the network. In this paper, a numerical optimisation approach has been compared with the results of an experimental campaign using three different numerical models as inputs (EPANET advective model, the AZRED model in which diffusion–dispersion equations have been implemented, and a new diffusive–dispersive model in dynamic conditions using the random walk method, EPANET-DD). The optimisation problem was formulated using the Monte Carlo method. The results demonstrated a significant difference in sensor placement based on the numerical model.https://www.mdpi.com/2073-4441/15/3/559advectiondispersionoptimal position of sensorsrandom walk modelwater qualitywater distribution network
spellingShingle Stefania Piazza
Mariacrocetta Sambito
Gabriele Freni
Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality Models
Water
advection
dispersion
optimal position of sensors
random walk model
water quality
water distribution network
title Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality Models
title_full Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality Models
title_fullStr Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality Models
title_full_unstemmed Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality Models
title_short Analysis of Optimal Sensor Placement in Looped Water Distribution Networks Using Different Water Quality Models
title_sort analysis of optimal sensor placement in looped water distribution networks using different water quality models
topic advection
dispersion
optimal position of sensors
random walk model
water quality
water distribution network
url https://www.mdpi.com/2073-4441/15/3/559
work_keys_str_mv AT stefaniapiazza analysisofoptimalsensorplacementinloopedwaterdistributionnetworksusingdifferentwaterqualitymodels
AT mariacrocettasambito analysisofoptimalsensorplacementinloopedwaterdistributionnetworksusingdifferentwaterqualitymodels
AT gabrielefreni analysisofoptimalsensorplacementinloopedwaterdistributionnetworksusingdifferentwaterqualitymodels