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Advisor(s)
Abstract(s)
Water losses reduction in Water Distribution Systems (WDSs) is nowadays an issue
of growing importance for water companies to ensure the economic sustainability of these
public services. In this context, the implementation of District Metered Areas (DMAs)
and/or pressure management are considered effective tools for leakage control,
particularly in large networks and in systems with deteriorated infrastructures and with
high pressure.
Based in previous studies performed by the authors (Gomes et al., 2012; Gomes et al.,
2015; Sousa et al., 2015), the methodology described in this paper follows the ‘water
losses management international best practices’ and makes it possible to evaluate the Net
Present Value (NPV) of DMAs project, as well as the benefits that can be achieved by
pressure management in WDS, particularly in terms of water production reduction.
Leakage assessment is performed using the analysis of the minimum night flow and the
FAVAD concept, and it uses a pressure driven simulation model to predict the network
hydraulic behaviour under different pressure conditions. The optimal location of DMAs
entry points, pipes reinforcement/replacement and locations/settings of the Pressure
Reduction Valves (PRVs) are identified by a Simulated Annealing algorithm. The
potential of this methodology is illustrated through an hypothetical case study.
Description
Keywords
District Metered Areas Pressure management Simulated Annealing Water losses
Citation
Publisher
EPiC Series in Engineering