Upgrading Reliability of Water Distribution Networks Recognizing Valve Locations

Gupta, Rajesh; Baby, A.; Arya, Prabha; Ormsbee, Lindell

doi:10.1016/j.proeng.2014.11.201

Cited by 18 publications

(4 citation statements)

References 18 publications

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“…As the results are compared and summarized in Table 3, it is surprising that the improved WDS reliability (0.423) close to that of the rule-based approach (0.483), with only 21% of the construction cost of the rule-based approach. Therefore, it is generally proposed to maximize valve installation and minimize piping replacement to improve WDS reliability, which is effective at a given budget that is consistent with previous research [30][31][32].…”

Section: Application Results Of Rules 1 Andsupporting

confidence: 54%

A Framework for Improving Reliability of Water Distribution Systems Based on a Segment-Based Minimum Cut-Set Approach

Kim

Jun

Yoo

et al. 2019

Water

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A framework is presented to effectively improve the water distribution system (WDS) reliability. The proposed framework first classifies pipes in a WDS into three reinforcement types through topological analyses and hydraulic simulations over the WDS; type 1: no reinforcement, type 2: increasing pipe durability, and type 3: installing valve(s) at both ends. Then two rules, rules 1 and 2, are implemented, in which rule 1 first reinforces the pipe with the lowest reliability but rule 2 preferentially reduces damage size by pipe failures represented as the expected number of customers out of service (EN). The proposed method was applied to Cherry Hill network, and considerably improved the WDS reliability from 0.137 to 0.483. Both approaches showed notable differences in changes of the EN at each step of reinforcement, where rule 2 showed a better capability to reduce the EN and detect vulnerable areas in the WDS than rule 1. In addition, a practical approach, maximizing valve installations and minimizing pipe replacements according to the reinforcement types in the system, provided an improved WDS reliability (0.423) close to that of the rule-based approach (0.483) using only 21% of the construction cost by the rule-based approach. The proposed framework can be guidelines for improving the WDS reliability under restricted budget and site conditions.

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Section: Application Results Of Rules 1 Andsupporting

confidence: 54%

A Framework for Improving Reliability of Water Distribution Systems Based on a Segment-Based Minimum Cut-Set Approach

Kim

Jun

Yoo

et al. 2019

Water

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show abstract

“…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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“…25 The reliability of a water distribution network can be improved by adding a parallel pipe to an existing one. 26 In actual industrial operations, more than one pipeline is often utilized to provide higher flows, mainly in mining operations which require a great amount of water in their operations, so one pipeline cannot satisfy the water requirements. Parallel pipes must be included in the WDN design.…”

Section: Introductionmentioning

confidence: 99%

“…Parallel pipelines are arranged to divide flow and to keep the head loss at the same rate, meaning that head loss in all parallel pipes remains the same . The reliability of a water distribution network can be improved by adding a parallel pipe to an existing one . In actual industrial operations, more than one pipeline is often utilized to provide higher flows, mainly in mining operations which require a great amount of water in their operations, so one pipeline cannot satisfy the water requirements.…”

Section: Introductionmentioning

confidence: 99%

Design of Desalinated Water Distribution Networks: Complex Topography, Energy Production, and Parallel Pipelines

Araya

Lucay

Cisternas

et al. 2018

Ind. Eng. Chem. Res.

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A methodology was developed to determinate the location and size of desalination plants, the water distribution network, and the location and size of energy recovery devices to provide desalinated water in regions with complex topography. The novelty of this methodology is that energy recovery devices such as pumps as turbines are incorporated to produce energy. Another novelty is the consideration of using multiple pipelines. The methodology proposed uses a superstructure with a set of alternatives in which the optimal solution is found. A mathematical model is generated that corresponds to a mixed integer nonlinear programming (MINLP) problem, which is linearized to become a mixed integer linear programming (MILP) problem solved using the CPLEX solver in GAMS. A case study is presented to demonstrate the applicability of the methodology to real size problems.

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Upgrading Reliability of Water Distribution Networks Recognizing Valve Locations

Cited by 18 publications

References 18 publications

A Framework for Improving Reliability of Water Distribution Systems Based on a Segment-Based Minimum Cut-Set Approach

A Framework for Improving Reliability of Water Distribution Systems Based on a Segment-Based Minimum Cut-Set Approach

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

Design of Desalinated Water Distribution Networks: Complex Topography, Energy Production, and Parallel Pipelines

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