Balancing reservoir based approach for solution to pressure deficient water distribution networks
2011
Hydraulic simulation models that simulate the behavior of water distribution systems under pressure deficient conditions is becoming an important tool for reliability assessments and also for deriving the operational strategies during the failure of components. The conventional demand driven analysis (DDA) cannot directly simulate the network under pressure deficient conditions. In such cases, pressure dependent analysis (PDA) is superior to DDA. This paper introduces a new approach for solving pressure-deficient condition by connecting balancing reservoirs named as complementing reservoir at the nodes having deficiencies. The basis of this proposed approach is to complement flow from a complementary reservoir to the pressure deficient node; while the complementary reservoir is an imaginary balancing reservoir and the complement flow to a node is actually the shortfall at the node. The new approach called CRS (Complementary Reservoir Solution) approach is demonstrated through few cases. The results indicate that the proposed approach CRS approach is a promising method.
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