scholarly journals The New Set Up of Local Performance Indices into WaterNetGen and Application to Santarém’s Network

2020 ◽  
Vol 2 (1) ◽  
pp. 18 ◽  
Author(s):  
Marco Amos Bonora ◽  
Fabio Caldarola ◽  
Mario Maiolo ◽  
Joao Muranho ◽  
Joaquim Sousa
Keyword(s):  
Water Distribution ◽  
Global Analysis ◽  
Distribution Network ◽  
Water Distribution Network ◽  
Mathematical Framework ◽  
Water Networks ◽  
Performance Indices ◽  
Set Up ◽  
Pressure Driven Analysis

A new set of local performance indices has recently been introduced within a mathematical framework specifically designed to promote a local–global analysis of water networks. Successively, some local indices were also set up and implemented on WaterNetGen to better exploit their potential. In this paper, after a very brief overview of tools and main notations, Santarém’s (Portugal) water distribution network (WDN) is examined, applying to it the mentioned set of local indices, as a new real case study. The paper also focuses on the Hypotesis required to assess these indices in a pressure driven analysis (PDA) approach, analyzing and discussing the results obtained from such a simulation.

scholarly journals Energy and Cost Savings through Pumping Stations Rehabilitation. Case Study in Bucharest

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 593
Author(s):  
Sorin Perju ◽  
Alexandru Aldea
Keyword(s):  
Water Distribution ◽  
Energy Savings ◽  
Distribution Network ◽  
Cost Savings ◽  
Water Distribution Network ◽  
Water Network ◽  
Water Losses ◽  
Pumping Stations ◽  
Technical Solutions

This paper presents the results recorded by upgrading and rehabilitating the pumping stations for an urban water network with a primary goal of diminishing the operation and maintenance costs and a secondary goal of reducing the water losses in the water distribution network. The adopted technical solutions within the structural and functional modifications of the pumping stations have led to both the improvement of hydraulic parameters of the pumping stations and also the improvement of registered energy consumption. The undertaken modifications and transformations within the pumping stations led to significant energy savings and at the same time to important water losses reductions within the distribution network.

scholarly journals A New Vulnerability Measure for Water Distribution Network

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 1005 ◽  
Author(s):  
Mario Maiolo ◽  
Daniela Pantusa ◽  
Manuela Carini ◽  
Gilda Capano ◽  
Francesco Chiaravalloti ◽  
...  
Keyword(s):  
Water Distribution ◽  
Distribution Network ◽  
Water Distribution Network ◽  
Structural Elements ◽  
Performance Indices ◽  
Water Network ◽  
Topological Approach ◽  
Vulnerability Measure ◽  
Failure Conditions ◽  
Service Standards

The main objective of a water distribution network is to provide water to users in compliance with quality and service standards under different conditions. The ability to meet the water demand at the nodes, under the required pressures head, depends on many characteristic factors of the water network, such as various infrastructural components. A water distribution network is a complex system consisting of numerous structural elements and dependent by several factors. Resilience, robustness and vulnerability are of great interest, for these systems, in relation to the possible failure conditions which may compromise the network’s ability to fulfill the project conditions. Vulnerability measures how much the network is fragile: a higher value of vulnerability means that the network is prone to fail in achieving the project conditions. In the present work, a new vulnerability measure based on a topological approach is proposed. A first application of the proposed vulnerability measure on two water networks known in the literature is described, and the obtained results are compared with other performance indices showing a significant correlation.

scholarly journals Improved Hydraulic Simulation of Valve Layout Effects on Post-Earthquake Restoration of a Water Distribution Network

2020 ◽  
Vol 12 (8) ◽  
pp. 3492
Author(s):  
Jeongwook Choi ◽  
Doosun Kang
Keyword(s):  
Water Distribution ◽  
Distribution Network ◽  
Water Distribution Network ◽  
Seismic Damage ◽  
Hydraulic Analysis ◽  
Hydraulic Simulation ◽  
Restoration Process ◽  
Restoration Strategies ◽  
The Impact ◽  
Pressure Driven Analysis

To restore water pipes damaged by earthquakes, it is common to block the water flow by closing the associated shut-off valves. In this process, water supply suspension in the area connected to the isolated pipes is inevitable, which decreases the serviceability of the water distribution network (WDN). In this study, we identified the impact of valve layout (i.e., number and location) on system serviceability during a seismic damage restoration process. By conducting a pressure-driven-analysis (PDA) using EPANET 3.0, a more realistic hydraulic analysis could be carried out under the seismically damaged condition. Furthermore, by considering the valve-controlled segment in the hydraulic simulation, a more realistic water suspension area was determined, and efficient seismic damage restoration strategies were identified. The developed model was implemented on a WDN to demonstrate the effect of valve layout on the post-earthquake restoration process. Finally, effective restoration strategies were suggested for the application network.

scholarly journals Effects Comparison of Different Resilience Enhancing Strategies for Municipal Water Distribution Network: A Multidimensional Approach

2015 ◽  
Vol 2015 ◽  
pp. 1-16 ◽  
Author(s):  
Xudong Zhao ◽  
Zhilong Chen ◽  
Huadong Gong
Keyword(s):  
Water Distribution ◽  
Distribution Network ◽  
Health And Safety ◽  
Water Distribution Network ◽  
Optimization Strategy ◽  
Comparison Results ◽  
The City ◽  
Considerable Body ◽  
Public Health And Safety

Water distribution network (WDN) is critical to the city service, economic rehabilitation, public health, and safety. Reconstructing the WDN to improve its resilience in seismic disaster is an important and ongoing issue. Although a considerable body of research has examined the effects of different reconstruction strategies on seismic resistance, it is still hard for decision-makers to choose optimal resilience enhancing strategy. Taking the pipeline ductile retrofitting and network meshed expansion as demonstration, we proposed a feasible framework to contrast the resilience enhancing effects of two reconstruction strategies—units retrofitting strategy and network optimization strategy—in technical and organizational dimension. We also developed a new performance response function (PRF) which is based on network equilibrium theory to conduct the effects comparison in integrated technical and organizational dimension. Through the case study of municipal WDN in Lianyungang, China, the comparison results were thoroughly shown and the holistic decision-making support was provided.

scholarly journals Water Distribution Network Model Building, Case Study: Milano, Italy

2015 ◽  
Vol 119 ◽  
pp. 573-582 ◽  
Author(s):  
Mario Castro Gama ◽  
Emilio Attilio Lanfranchi ◽  
Quan Pan ◽  
Andreja Jonoski
Keyword(s):  
Network Model ◽  
Water Distribution ◽  
Model Building ◽  
Distribution Network ◽  
Water Distribution Network
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