Determination of Optimal Location and Settings of Pressure Reducing Valves in Water Distribution Networks for Minimizing Water Losses

Saldarriaga, Juan; Salcedo, Camilo

doi:10.1016/j.proeng.2015.08.986

Cited by 29 publications

(13 citation statements)

References 12 publications

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“…To consider the effect of water losses when solving the hydraulic problem in water pressurized networks, some commercial software has been developed [48]. One of the solutions to allow for minimizing water losses is pressure reduction in a water supply network [49]. Stringent monitoring of the water distribution network reduces water losses considerably [50].…”

Section: The Methods For Assessing the Water Supply Network Reliabilitymentioning

confidence: 99%

Method for Determining the Probability of a Lack of Water Supply to Consumers

Szpak

2020

Energies

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The water distribution subsystem is the most failing subsystem included in the water supply system. One of the main consequences of water supply failures is the lack of water supply to consumers, which is always very onerous. The paper presents a method of determining the conditional probability that a break in the supply of water to consumers of a certain duration will be caused by a specific type of failure. The result of the work was to identify water supply network failures that result in the longest water supply suspension time. The method was presented on a real water supply system. In order to reduce the incidence of long-term interruptions in water supply, water supply companies should mainly continue replacing gray cast iron pipes with thermoplastic materials. Actions taken to increase the safety of drinking water supply meet the current standards for the safety of drinking water, developed by the World Health Organization and the European Union.

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Section: The Methods For Assessing the Water Supply Network Reliabilitymentioning

confidence: 99%

Method for Determining the Probability of a Lack of Water Supply to Consumers

Szpak

2020

Energies

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“…The results showed that the scheme was able to maximize the energy produced by PATs. The non-dominated sorted genetic algorithm was used in [21,36,66] to solve the multi-objective optimization problems. The optimization problems were formulated to reduce the number of valves used and to also determine their optimal operation.…”

Section: Optimal Controlmentioning

confidence: 99%

A Survey of Pressure Control Approaches in Water Supply Systems

Mosetlhe

Hamam

2020

Water

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Pressure control in water distribution networks (WDNs) provides an avenue for improving both their sustainability and reliability. The complexities of the networks make the problem more challenging as various situational operations must be accounted for to ensure that the entire system performs under recommended conditions. In general, this problem is addressed by the installation of pressure reducing valves (PRVs) in WDNs and determining their appropriate settings. Researchers have proposed the utilization of several control techniques. However, the limitations of both computational and financial resources have compelled the researchers to investigate the possibility of limiting the PRVs while ensuring their control is sufficient for the entire system. Several approaches have been put forward to mitigate this sub-problem of the pressure control problem. This paper presents a review of existing techniques to solve both the localization of PRVs and their control problems. It dwells briefly on the classification of these methods and subsequently highlights their merits and demerits. Despite the available literature, it can be noted that the solution methods are yet to be harmonized. As a result, various avenues of research areas are available. This paper further presents the possible research areas that could be exploited in this domain.

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“…In the literature, diaphragm pressure-reducing valves have been extensively investigated, from device modelling, possibly in combination with an electronic control apparatus [18][19][20][21][22][23][24] also under transient regimes [25], to the optimisation of their location in networks and their setting value [26][27][28][29][30][31][32][33][34][35][36][37]. The efficiency of the use of PRVs in reducing losses has been demonstrated in several studies [13,14,16,17,38].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Analysis of a Piston-Actuated Pressure-Reducing Valve under Low Flow Conditions

Marsili¹,

Zarbo²,

Alvisi³

et al. 2020

Water

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The effectiveness of pressure-reducing valves (PRVs) for optimal pressure management of water distribution networks (WDNs) is proven, but problems and operational limitations have been highlighted by some recent experiences. In this study, we analyse the functioning of a piston-actuated pressure-reducing valve (PA-PRV) with a mechanical pilot which is subjected to low-flow regimes, a condition that is often observed in real water distribution networks. The analyses were carried out by means of laboratory tests featuring two sets of experiments, i.e., (a) by testing the behaviour of the PRV when a pre-established initial value and subsequent variation of flow rate occurs in the system and (b) by testing the PRV against a temporal series of flow rates observed at the inlet section of a real district metered area. The first set of tests showed that the PA-PRV tends not to maintain pressure at the imposed set-point and exhibits an unstable behaviour characterised by significant pressure oscillations under some flow rate conditions. The second set of laboratory tests showed that the anomalous behaviour identified in the first set of tests can occur under ordinary operational conditions of a network.

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Determination of Optimal Location and Settings of Pressure Reducing Valves in Water Distribution Networks for Minimizing Water Losses

Cited by 29 publications

References 12 publications

Method for Determining the Probability of a Lack of Water Supply to Consumers

Method for Determining the Probability of a Lack of Water Supply to Consumers

A Survey of Pressure Control Approaches in Water Supply Systems

Laboratory Analysis of a Piston-Actuated Pressure-Reducing Valve under Low Flow Conditions

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