Numerical Experimentations for a New Set of Local Indices of a Water Network

Bonora, Marco Amos; Caldarola, Fabio; Muranho, João; Sousa, Joaquim; Maiolo, Mario

doi:10.1007/978-3-030-39081-5_42

Cited by 6 publications

(8 citation statements)

References 19 publications

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“…[9], refer to "design conditions". In accordance with what was found in [6], these conditions are often linked to simplified hypotheses, which vary from author to author. As this paper is dealing with an existing network, it properly refers to the design conditions as "requested" conditions.…”

Section: Local Performance Indicessupporting

confidence: 79%

“…The software WaterNetGen is a standalone EPANET plugin developed by J. Muranho, A. Ferreira, J. Sousa, A. Gomes, and A. Sa Marques (see, for example, [2,3]); it incorporates the well-known EPANET capabilities [4] and also adds some new ones (see Section 2). The theme of local indices is also present in [5], where the use of local indices is considered in the case of WDNs with non-uniform minimal design pressure, and in [6], where the network of Kang and Lansey [7] is considered as a case study for testing local indices. In addition to promoting a local analysis of a WDN, the local performance indices can be viewed as "elementary building bricks" to construct new global indices and to write well-known global others in a new way.…”

Section: Introductionmentioning

confidence: 99%

“…Examples are represented by the resilience indices as formulated by Todini [8] and by Di Nardo and others [9]. Using their new formulation through local indices, it is in fact very easy to conduct a deeper analysis on them and on their reciprocal differences; see, for instance, [1,5,6].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Bonora

Caldarola

Maiolo

et al. 2020

The 4th EWaS International Conference: Valuing the Water, Carbon, Ecological Footprints of Human Activities

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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.

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Section: Local Performance Indicessupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Bonora

Caldarola

Maiolo

et al. 2020

The 4th EWaS International Conference: Valuing the Water, Carbon, Ecological Footprints of Human Activities

Self Cite

View full text Add to dashboard Cite

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“…Authors have investigated on several occasions the necessary hypotheses and simplifications useful for estimating the conditions required in different application cases [20][21][22].…”

Section: Resilience Indices Assessmentmentioning

confidence: 99%

Why aren't surrogate reliability indices so reliable? Can they be improved?

Sousa,

Muranho,

Bonora

et al. 2022

Proceedings - 2nd International Join Conference on Water Distribution System Analysis (WDSA)& Computing and Control in the

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Water distribution networks are known to be costly infrastructures. A few decades ago, the research efforts concerning water distribution network design were focused on economic aspects and the goal was to obtain the least cost solutions. Beyond economics, these infrastructures must mostly be reliable since they provide an essential service to society. But reliability assessment is a complex task and involves various aspects: mechanical, hydraulic, water quality, water safety, among others. This paper focus is on the hydraulic reliability. As hydraulic reliability is computationally hard to measure directly, researchers came up with surrogate measures, like entropy and the resilience index. But these surrogate measures had some flaws and researchers quickly started suggesting new ones trying to avoid those known flaws, like the diameter-sensitive flow entropy or the modified resilience index. But even these new approaches are still not so reliable to be used in the design of water distribution networks. This paper presents a thorough analysis of the performance of these reliability surrogate measures, supported by illustrative examples, highlighting their pros and cons to help in deciding which one to use for design purposes. In the end, some guidelines will be presented in order to improve these indices performance, presenting some results obtained from these improvements.

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“…To determine the resilience of water distribution systems, Todini [24] already described the basis for assessing the systems using a heuristic optimisation approach 24 years ago. The mathematical framework described in [24] has recently been further developed by Caldarola et al [25][26][27][28][29], among others. The mathematical principles are used in many hydraulic models, such as EPANET (Version 2.0) or the WaterNetGen software (EPANET extension-pipe dimensioning) [30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Water Supply Security—Risk Management Instruments in Water Supply Companies

Heumer,

Grischek,

Tränckner

2024

Water

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Piped drinking water supplies are exposed to a range of threats. Changing hazard situations arise from climate change, digitisation, and changing conditions in the power supply, among other things. Risk and crisis management adapted to the hazard situation can increase the resilience of the piped drinking water supply. Analogous to the risk management system, this article describes a methodology that ranges from hazard analysis with the prioritisation of 57 individual hazards to vulnerability assessment with the help of balance sheet structure models (BSM) and the planning and implementation of measures to increase the resilience of the piped drinking water supply in a targeted manner. The work steps mentioned build on each other and were tested using the case study of a water supply company in Saxony (Germany). As a result, priority hazards are identified, the remaining supply periods and replacement and emergency water requirements are determined as part of the vulnerability assessment, and finally, planning principles for increasing resilience are documented. The methodology focuses primarily on practicable application by water supply companies.

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Numerical Experimentations for a New Set of Local Indices of a Water Network

Cited by 6 publications

References 19 publications

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

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

Why aren't surrogate reliability indices so reliable? Can they be improved?

Water Supply Security—Risk Management Instruments in Water Supply Companies

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