Rehabilitation of water distribution networks: when and how to rehabilitate

In this paper, a deterioration model is created and used to simulate the life cycle of a water distribution network (WDN). Then, two strategies – leakage fixing and pipe cleaning – are evaluated to rehabilitate its capacity to attend the demand. In order to implement the deterioration model, the fol...

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Main Authors: Leandro Alves Evangelista, Bruno Melo Brentan, Gustavo Meirelles Lima
Format: Article
Language:English
Published: IWA Publishing 2023-07-01
Series:Journal of Hydroinformatics
Subjects:
Online Access:http://jhydro.iwaponline.com/content/25/4/1329
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author Leandro Alves Evangelista
Bruno Melo Brentan
Gustavo Meirelles Lima
author_facet Leandro Alves Evangelista
Bruno Melo Brentan
Gustavo Meirelles Lima
author_sort Leandro Alves Evangelista
collection DOAJ
description In this paper, a deterioration model is created and used to simulate the life cycle of a water distribution network (WDN). Then, two strategies – leakage fixing and pipe cleaning – are evaluated to rehabilitate its capacity to attend the demand. In order to implement the deterioration model, the following parameters were considered: growth of the consumer population, increase in leakage rate, functional pipe deterioration and reduction of the hydraulic capacity of the pumps. For the leakage fixing, a fixed reduction rate in water losses was considered throughout the entire WDN until a minimum reference value was reached. For pipe rehabilitation, leaning was considered at a rate of 1% of the total length of the network per year. In each of the rehabilitation strategies, a cost–benefit analysis was carried out using the net present value. The results showed that both alternatives can restore the capacity of the WDN, with the pipe cleaning presenting a better economic impact. HIGHLIGHTS This study presents a methodology to understand the impact that the deterioration of a water distribution network (WDN) has on its operation.; This study brings an estimate of the time when a WDN should be rehabilitated as it deteriorates throughout its useful life.; This study presents two ways to rehabilitate a WDN and the economic impact of each of these implemented measures.;
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spelling doaj.art-72bb94740a74479c90fc5928abd763dd2023-08-10T13:23:01ZengIWA PublishingJournal of Hydroinformatics1464-71411465-17342023-07-012541329134010.2166/hydro.2023.206206Rehabilitation of water distribution networks: when and how to rehabilitateLeandro Alves Evangelista0Bruno Melo Brentan1Gustavo Meirelles Lima2 Engineering School, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil Engineering School, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil Engineering School, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil In this paper, a deterioration model is created and used to simulate the life cycle of a water distribution network (WDN). Then, two strategies – leakage fixing and pipe cleaning – are evaluated to rehabilitate its capacity to attend the demand. In order to implement the deterioration model, the following parameters were considered: growth of the consumer population, increase in leakage rate, functional pipe deterioration and reduction of the hydraulic capacity of the pumps. For the leakage fixing, a fixed reduction rate in water losses was considered throughout the entire WDN until a minimum reference value was reached. For pipe rehabilitation, leaning was considered at a rate of 1% of the total length of the network per year. In each of the rehabilitation strategies, a cost–benefit analysis was carried out using the net present value. The results showed that both alternatives can restore the capacity of the WDN, with the pipe cleaning presenting a better economic impact. HIGHLIGHTS This study presents a methodology to understand the impact that the deterioration of a water distribution network (WDN) has on its operation.; This study brings an estimate of the time when a WDN should be rehabilitated as it deteriorates throughout its useful life.; This study presents two ways to rehabilitate a WDN and the economic impact of each of these implemented measures.;http://jhydro.iwaponline.com/content/25/4/1329deteriorationenergy efficiencyleakagerehabilitationwater distribution network
spellingShingle Leandro Alves Evangelista
Bruno Melo Brentan
Gustavo Meirelles Lima
Rehabilitation of water distribution networks: when and how to rehabilitate
Journal of Hydroinformatics
deterioration
energy efficiency
leakage
rehabilitation
water distribution network
title Rehabilitation of water distribution networks: when and how to rehabilitate
title_full Rehabilitation of water distribution networks: when and how to rehabilitate
title_fullStr Rehabilitation of water distribution networks: when and how to rehabilitate
title_full_unstemmed Rehabilitation of water distribution networks: when and how to rehabilitate
title_short Rehabilitation of water distribution networks: when and how to rehabilitate
title_sort rehabilitation of water distribution networks when and how to rehabilitate
topic deterioration
energy efficiency
leakage
rehabilitation
water distribution network
url http://jhydro.iwaponline.com/content/25/4/1329
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