Titlebook: Improving Efficiency and Reliability in Water Distribution Systems; Enrique Cabrera,Antonio F. Vela Book 1995 Springer Science+Business Me

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Modelling Water Distribution Networks: From Steady Flow to Water Hammernt to use different models depending on the problem to be analyzed: from the simplest one, the static model, to the most complex one, the elastic inertial model, better known as water hammer..In this paper, general remarks of each model are explained, although the main emphasis is put on their conve

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General Overview of Unaccounted for Water in Water Distribution Systemsaper presents a series of techniques aimed at reducing water losses and increasing the efficiency in the supply..The proposed methodology covers the selection and optimization criterion of the strategies to be applied, in order to achieve the objectives in an optimum way. A hierarchy based on techni

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Using Variable Speed Pumps to Reduce Leakage and Improve Performanceaper, several models for investigating the performance of water distribution systems with variable speed pumps are presented. The models were developed to determine the optimum speeds for operating VFD (variable frequency drive) pumps to meet stated objectives.

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Valve Control Regulation for Reducing Leakagelogy is presented for the determination of optimal pressure reducing valve settings minimising excess pressure in a water supply network for varying consumer demands. The methodology takes fully into account the network hydraulic equations, including terms that relate leakage losses to network press

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Pump Scheduling for Reducing Energy Costs each case there is a discussion of methodology and procedures, with applications taken from actual networks and systems. The readily available computer programs related to pump scheduling consist of:.. for evaluation of hydraulic and cost models of pumps.. for calculation of pump energy costs under

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Analytical and Simulation Models for Reliability Analysis in Water Distribution Systemstion of reliability in the supply of water. These two objectives are in conflict, however, in that increases in reliability of supply almost invariably lead to increases in cost. The problem of design and operation of water distribution networks is therefore multi-objective in nature. One of the maj