Using EPA-SWMM to simulate intermittent water distribution systems

Campisano, Alberto; Gullotta, Aurora; Modica, Carlo

doi:10.1080/1573062x.2019.1597379

Cited by 27 publications

(18 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ability of EPA-SWMM in representing the behaviour of the filling process was evaluated by validating the results with a field experiment in a WDN in Sicily (Italy) by Campisano et al (2019a). Their method is the same as the method developed by Kabaasha's (2012) PDA approach, except that they introduced different head-flow relationship equations to the outlet.…”

Section: Modelling Of Iws With Epa-swmmmentioning

confidence: 99%

Review of hydraulic modelling approaches for intermittent water supply systems

Sarisen

Koukoravas

Farmani

et al. 2022

Journal of Water Supply: Research and Technology-Aqua

View full text Add to dashboard Cite

Intermittent water supply (IWS) is widely used around the world, and with the increase in population and predicted future water scarcity, IWS applications seem to continue. While most of the existing studies on water supply concentrate on continuous water supply (CWS), the research focused on the IWS is now becoming mainstream. Hydraulic modelling is an effective tool for the process of planning, design, rehabilitation, and operation of water distribution systems. It helps significantly in engineers’ decision-making process. The necessity of modelling IWS systems arises from the complexity and variety of problems caused by intermittency. This paper offers a review of the state-of-the-art IWS modelling and identifies the key strengths and limitations of the available approaches, and points at potential research directions. Currently, neither computer software nor a practically used approach is available for modelling IWS. For a rigorous simulation of IWS, system characteristics first need to be understood, i.e., the user behaviour under pressure-deficient conditions, water losses, and filling and emptying processes. Each of them requires further attention and improvement. Additionally, the necessity of real data from IWSs is stressed. Accurate modelling will lead to the development of improved measures for the problems caused by intermittency.

show abstract

Section: Modelling Of Iws With Epa-swmmmentioning

confidence: 99%

Review of hydraulic modelling approaches for intermittent water supply systems

Sarisen

Koukoravas

Farmani

et al. 2022

Journal of Water Supply: Research and Technology-Aqua

View full text Add to dashboard Cite

show abstract

“…Importantly, calculation of the value of UC through simulation of the network needs considering that intermittent WDSs are cyclically subject to transitory phases in the water supply (Campisano et al 2018). The alternate processes of filling and emptying of the network are always characterised by transitory conditions of unbalance between input and output flows.…”

Section: Evaluation Of Equity In Water Distributionmentioning

confidence: 99%

“…(1) UC = 1 − ADEV ASR vice-versa. Therefore, although originally developed for the analysis of urban drainage systems, it has demonstrated to simulate properly the intermittent behaviour of WDSs also in the description of the filling and emptying phases of the network (Campisano et al 2018;Gullotta et al 2021). A detailed description of the two SA optimization schemes is reported in the following paragraphs.…”

Section: Sa Algorithmsmentioning

confidence: 99%

“…EPA-SWMM was applied using a time step of simulation Δt = 10 s and assuming a maximum value of the spatial step Δx = 100 m for all the simulations. The chosen spatial scale value was proven to be sufficiently small to provide accurate results in the description of the dynamics of the processes of intermittency (Campisano et al 2018).…”

Section: Case Studymentioning

confidence: 99%

“…The authors developed specific multi-objective genetic algorithms based on the Non-Dominated Sorted Genetic Algorithm II (NSGA II) (Deb et al 2002). These algorithms were applied in combination with EPA Storm Water Management Model (SWMM), which was used to simulate the network under different configurations of installation of the control valves (Campisano et al 2018). An application of the methodology was carried out on a WDS in northern Italy by considering water shortage scenarios and users equipped with private storage tanks.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Simplified Methodology for Optimal Location and Setting of Valves to Improve Equity in Intermittent Water Distribution Systems

Gullotta

Campisano

Creaco

et al. 2021

Water Resour Manage

Self Cite

View full text Add to dashboard Cite

In this paper, a simplified methodology to increase the water distribution equity in existing intermittent water distribution systems (WDSs) is presented. The methodology assumes to install valves in the water distribution network with the objective to re-arrange the flow circulation, thus allowing an improved water distribution among the network users. Valve installation in the WDS is based on the use of algorithms of sequential addition (SA). Two optimization schemes based on SA were developed and tested. The first one allows identifying locations of gate valves in order to maximize the global distribution equity of the network, irrespectively of the local impact of the valves on the supply level of the single nodes. Conversely, the second scheme aims to maximize the global equity of the network by optimizing both location and setting (opening degree) of control valves, to include the impact of the new flow circulation on the supply level of each node. The two optimization schemes were applied to a case study network subject to water shortage conditions. The software EPA Storm Water Management Model (SWMM) was used for the simulations in the wake of previous successful applications for the analysis of intermittent water distribution systems. Results of the application of the SA algorithms were also compared with those from the literature and obtained by the use of the multi-objective Non-Dominated Sorted Genetic Algorithm II (NSGA II). The results show the high performance of SA algorithms in identifying optimal position and settings of the valves in the WDS. The comparison pointed out that SA algorithms are able to perform similarly to NSGA II and, at the same time, to reduce significantly the computational effort associated to the optimization process.

show abstract