Leak Analysis in Pipeline Systems by Means of Optimal Valve Regulation

Tucciarelli, Tullio; Criminisi, Antonio; Termini, Donatella

doi:10.1061/(asce)0733-9429(1999)125:3(277)

Cited by 148 publications

(96 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…M a n u s c r i p t Tucciarelli et al (1999) and Giustolisi et al (2008). The total leakage is calculated as sum of respective leakages associated with each network node (see Eq.…”

Section: Leakagementioning

confidence: 99%

See 1 more Smart Citation

Optimal Design of Water Distribution Systems Using Many-Objective Visual Analytics

Kapelan

Kasprzyk

et al. 2013

J. Water Resour. Plann. Manage.

150

View full text Add to dashboard Cite

This study investigates the use of many-objective optimization for water distribution system (WDS) design or rehabilitation problems. The term many-objective optimization refers to optimization with four or more objectives. The increase in the number of objectives brings new challenges for both optimization and visualization. This study uses a multi-objective evolutionary algorithm termed the epsilon Nondominated Sorted Genetic Algorithm II (ε-NSGAII) and interactive visual analytics to reveal and explore the tradeoffs for the Anytown network problem. The many-objective formulation focuses on a suite of six objectives: (1) capital cost, (2) operating cost, (3) hydraulic failure, (4) leakage, (5) water age and (6) fire fighting capacity. These six objectives are optimized based on decisions related to pipe sizing, tank siting, tank sizing, and pump scheduling under five different loading conditions. Solving the many-objective formulation reveals complex tradeoffs that would not be revealed in a lower-dimensional optimization problem. Visual analytics are used to explore these complex tradeoffs and identify solutions that simultaneously improve the overall WDS performance but with reduced capital and operating costs. This study demonstrates that the many-objective visual analytics approach has clear advantages and benefits in supporting more informed, transparent decision making in the WDS design process.

show abstract

“…M a n u s c r i p t Tucciarelli et al (1999) and Giustolisi et al (2008). The total leakage is calculated as sum of respective leakages associated with each network node (see Eq.…”

Section: Leakagementioning

confidence: 99%

“…The leakage along a pipe is allocated to two end nodes for simulation. According to Tucciarelli et al (1999), the background leakage in half-pipes linked to node i is calculated using…”

Section: Leakagementioning

confidence: 99%

Optimal Design of Water Distribution Systems Using Many-Objective Visual Analytics

Kapelan

Kasprzyk

et al. 2013

J. Water Resour. Plann. Manage.

150

View full text Add to dashboard Cite

show abstract

“…Recently, global-local hybridisations have been proposed in the literature (Kapelan et al 2003;Soares et al 2003), which have proven to be more efficient in parameter calibration than conventional search methods. By using an iterative two-step procedure, Tucciarelli et al (1999) Practical applications of current leak detection techniques have been a hard task as experienced by Covas et al (2004) and Stephens et al (2004Stephens et al ( , 2005. Savic et al (2009) pointed out some reasons why inverse transient analysis has not yet been widely accepted by practitioners, such as the problems with pressure wave speed calibration and wave reflections in complex distribution systems, cost of field measurement, lack of commercially available software incorporating calibration routines and system security.…”

Section: Leak Detection In Water Pipe Systemsmentioning

confidence: 99%

Leak detection by inverse transient analysis in an experimental PVC pipe system

Soares

Covas

Reis

2010

Journal of Hydroinformatics

View full text Add to dashboard Cite

Leakage reduction in water supply systems and distribution networks has been an increasingly important issue in the water industry since leaks and ruptures result in major physical and economic losses. Hydraulic transient solvers can be used in the system operational diagnosis, namely for leak detection purposes, due to their capability to describe the dynamic behaviour of the systems and to provide substantial amounts of data. In this research work, the association of hydraulic transient analysis with an optimisation model, through inverse transient analysis (ITA), has been used for leak detection and its location in an experimental facility containing PVC pipes.Observed transient pressure data have been used for testing ITA. A key factor for the success of the leak detection technique used is the accurate calibration of the transient solver, namely adequate boundary conditions and the description of energy dissipation effects since PVC pipes are characterised by a viscoelastic mechanical response. Results have shown that leaks were located with an accuracy between 4-15% of the total length of the pipeline, depending on the discretisation of the system model. Key words 9 9 9 9 calibration, hydraulic transients, inverse models, leak detection, plastic pipes

show abstract

“…Mini hydro power plants are a common practice in water transmission lines [7,8], where a stable discharge and pressure drop are present and can be exploited to produce energy. Pressure reducing valves (PRV) were first proposed to obtain optimal pressure values in water distribution lines, with the benefit of reducing the amount of water leakage [9,10]. Several methods for the optimal location of PRVs have been developed [11,12].…”

Section: Introductionmentioning

confidence: 99%

Energy Saving in a Water Supply Network by Coupling a Pump and a Pump As Turbine (PAT) in a Turbopump

Carravetta

Antipodi²,

Golia

et al. 2017

Water

View full text Add to dashboard Cite

Abstract:The management of a water distribution network (WDN) is performed by valve and pump control, to regulate both the pressure and the discharge between certain limits. The energy that is usually merely dissipated by valves can instead be converted and used to partially supply the pumping stations. Pumps used as turbines (PAT) can be used in order to both reduce pressure and recover energy, with proven economic benefits. The direct coupling of the PAT shaft with the pump shaft in a PAT-pump turbocharger (P&P plant) allows us to transfer energy from the pressure control system to the pumping system without any electrical device. Based on experimental PAT and pump performance curves, P&P equations are given and P&P working conditions are simulated with reference to the operating conditions of a real water supply network. The annual energy saving demonstrates the economic relevance of the P&P plant.

show abstract

Leak Analysis in Pipeline Systems by Means of Optimal Valve Regulation

Cited by 148 publications

References 15 publications

Optimal Design of Water Distribution Systems Using Many-Objective Visual Analytics

Optimal Design of Water Distribution Systems Using Many-Objective Visual Analytics

Leak detection by inverse transient analysis in an experimental PVC pipe system

Energy Saving in a Water Supply Network by Coupling a Pump and a Pump As Turbine (PAT) in a Turbopump

Contact Info

Product

Resources

About