History of Pressure-Dependent Analysis of Water Distribution Networks and Its Applications

This paper describes the development and application of a new multiobjective evolutionary optimization approach for the design and upgrading of water distribution systems with multiple pumps and service reservoirs. The optimization model employs a pressure-driven analysis simulator that accounts for the minimum node pressure constraints and conservation of mass and energy. Pump scheduling, tank siting and tank design are integrated seamlessly in the optimization without introducing additional heuristic procedures. The computational solution of the optimization problem is entirely penalty-free, thanks to pressure-driven analysis and the inclusion of explicit criteria for tank depletion and replenishment. The model was applied to the Anytown network that is a benchmark optimization problem. Many new solutions were achieved that are cheaper and offer superior performance compared to previous solutions in the literature. Detailed and extensive simulations of the solutions achieved were carried out. Spatial and temporal variations in water quality were investigated by simulating the chlorine residual and disinfection by-products in addition to water age. The hydraulic requirements were satisfied; efficiency of pumps was consistently high; effective operation of the new and existing tanks was achieved; water quality was improved; and overall computational efficiency was high. The formulation is entirely generic.Keywords Demand-driven analysis . Pressure-driven analysis . Penalty-free constrained multiobjective evolutionary optimization . Water distribution system . Optimal pump scheduling . Service reservoir design and operation Water Resour Manage (2016) 30:3671-3688

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“…The demand satisfaction ratio is also known as the available demand fraction (see e.g. Abdy Sayyed et al 2015;Gupta 2015).…”

Section: Formulation Of the Optimization Modelmentioning

confidence: 99%

Penalty-Free Multi-Objective Evolutionary Approach to Optimization of Anytown Water Distribution Network

Siew

Tanyimboh

Seyoum

2016

Water Resour Manage

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“…The hydraulic grade and pressure head provide insights into the hydraulic conditions at each junction, indicating the elevation of the water surface and the pressure exerted, respectively. Overall, the table provides a comprehensive overview of the hydraulic performance and demand distribution across the network, aiding in the assessment and optimization of water distribution systems (Gupta et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…Conventionally, the design and analysis of water distribution networks is "demand driven". This approach assumes that demand/discharge at a junction remains constant irrespective of the residual pressure at that junction (Gupta 2015). This approach is suitable as planning, designing, revamping or re-organization of networks is easier.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Approaches of Analysis of Water Distribution Network

Done

2024

STAIJ

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Water Distribution Networks are one of the most important infrastructures. The success of a water distribution network depends upon its capability and efficiency to cater water demand and available residual pressures at consumer ends. Conventionally, Demand Driven Approach is used for designing and analyzing a water distribution network. But this approach fails to consider practical situations that can arise in an operational system like valve closure, pipe burst, pump failure, source failure, fire flow, DMA operations and their adverse effects on the network. Practically, residual pressures in the system vary quiet often and so the discharges at consumer ends. As the pressure increases, discharge also increases and vice-versa. Therefore discharges/demands depend upon the available residual pressure. This approach of analyzing a water distribution network is known as Pressure Driven Analysis. The aim of the paper is to study both Demand Driven Approach and Pressure Driven Approach and compare their results.

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“…Since the demand-driven analysis (DDA) fails to predict the actual behavior of the network under pressure deficient conditions, it is necessary to carry out pressuredriven analysis (PDA) which considers both demand and pressure requirements through node head flow relationship (NHFR) [40]. Several NHFRs are available [41] in the literature amongst which, the most commonly used relationship is suggested by Wagner et al [42] and is mathematically expressed as…”

Section: Hydraulic Simulationmentioning

confidence: 99%

Partitioning of Water Distribution Network into District Metered Areas Using Existing Valves

Sharma¹,

Dongre²,

Gupta³

et al. 2022

Computer Modeling in Engineering &Amp; Sciences

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Water distribution network (WDN) leakage management has received increased attention in recent years. One of the most successful leakage-control strategies is to divide the network into District Metered Areas (DMAs). As a multi-staged technique, the generation of DMAs is a difficult task in design and implementation (i.e., clustering, sectorization, and performance evaluation). Previous studies on DMAs implementation did not consider the potential use of existing valves in achieving the objective. In this work, a methodology is proposed for detecting clusters and reducing the cost of additional valves and DMA sectorization by considering existing valves as much as possible. The procedure of DMAs identification has been divided into three stages, i.e., a) clusters identification; b) sectorization or boundaries optimization and c) performance evaluation of the partitioned network. The proposed methodology is evaluated on a simple network and a real-world water network with the findings provided and compared to the DMAs, established for a raw water network with no existing valves. It is found that there is an adequate difference in cost of strategy implementation in both the cases for the network under consideration and the existing valve system achieved better network performance in terms of resilience index.

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History of Pressure-Dependent Analysis of Water Distribution Networks and Its Applications

Cited by 9 publications

References 61 publications

Penalty-Free Multi-Objective Evolutionary Approach to Optimization of Anytown Water Distribution Network

Penalty-Free Multi-Objective Evolutionary Approach to Optimization of Anytown Water Distribution Network

Comparison of Different Approaches of Analysis of Water Distribution Network

Partitioning of Water Distribution Network into District Metered Areas Using Existing Valves

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