Optimal Intermittent Operation of Water Distribution Networks under Water Shortage

Document Type : Research Paper


1 MSc Student of Irrigation and Reclamation Engineering, University of Tehran

2 Prof. of Irrigation and Reclamation Engineering, University of Tehran

3 MSc Student of Water Engineering, university of Shahrekord


Under water shortage conditions, it is necessary to exercise water consumption management practices in water distribution networks (WDN). Intermittent supply of water is one such practice that makes it possible to supply consumption nodal demands with the required pressure via water cutoff to some consumers during certain hours of the day. One of the most important issues that must be observed in this management practice is the equitable and uniform water distribution among the consumers. In the present study, uniformity in water distribution and minimum supply of water to all consumers are defined as justice and equity, respectively. Also, an optimization model has been developed to find an optimal intermittent supply schedule that ensures maximum number of demand nodes are supplied with water while the constraints on the operation of water distribution networks are also observed. To show the efficiency of the proposed model, it has been used in the Two-Loop distribution network under several different scenarios of water shortage. The optimization model has been solved using the honey bee mating optimization algorithm (HBMO) linked to the hydraulic simulator EPANET. The results obtained confirm the efficiency of the proposed model in achieving an optimal intermittent supply schedule. Moreover, the model is found capable of distributing the available water in an equitable and just manner among all the consumers even under severe water shoratges.


Main Subjects

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