Search results for " intermittent distribution"

showing 2 items of 2 documents

Implementation of pressure reduction valves in a dynamic water distribution numerical model to control the inequality in water supply

2013

The analysis of water distribution networks has to take into account the variability of users' water demand and the variability of network boundary conditions. In complex systems, e.g. those characterized by the presence of local private tanks and intermittent distribution, this variability suggests the use of dynamic models that are able to evaluate the rapid variability of pressures and flows in the network. The dynamic behavior of the network also affects the performance of valves that are used for controlling the network. Pressure reduction valves (PRVs) are used for controlling pressure and reducing leakages. Highly variable demands can produce significant fluctuation of the PRV set po…

Atmospheric ScienceEngineeringPressure controlbusiness.industryFlow (psychology)Complex systemWater supplyGeotechnical Engineering and Engineering Geologydynamic model intermittent distribution method of characteristic pipe-filling process PRVs water distribution network modelingVariable (computer science)Control theoryBoundary value problemWater qualityTransient (oscillation)businessSimulationCivil and Structural EngineeringWater Science and TechnologyJournal of Hydroinformatics
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Analysis of intermittent supply systems in water scarcity conditions and evaluation of the resource distribution equity indices

2007

Generally, urban water distribution shortage situations are solved by introducing discontinuous service and rationing the available water resources. This approach is widely adopted, not only in developing countries but also in developed ones, for solving short term scarcity conditions which can be caused by unpredicted drought periods. Intermittent distribution has the advantage of requiring small financial efforts but it leads to network operating conditions that are very far from the usual design ones. With the aim to analyse and describe the water supply network behaviour in intermittent conditions, a network hydraulic model has been set up in which both user and manager dependent regula…

Microeconomicsdistribution network performance water scarcity conditions intermittent distributionNatural resource economicsEconomicsEquity (finance)Resource distributionWater scarcity
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