Developing a Novel Graphical Method Based on Pinch Technology for Optimizing of Water Distribution Network from Energy Consumption Point of View

In this paper a new graphical method as “Hydraulic Pinch” has been proposedfor optimal design of water distribution network point of view of energy consumption. Name Pinch Technology is the known and familiar name for researchers and scientists active in the field of energy. This technology, first were used for analysis and optimizing of heat exchanger network to reduce energy consumption. Then researcher developed this approach as optimization method in different engineering fields such as hydrogen pinch in order to reduce the required hydrogen in refinery industry, Oxygen Pinch in water treatment field, Water Pinch in water reuse systems and etc. we have developed a new application of pinch method. This approach is used for factories and plants, cities, regions and countries that have considerable resources of water for transfer to consumers. The proposed method determines the minimum number of equipment and lowest necessary energy to the pumping operation. In the first phase innovative pinch method suggests transferring of water from resources to consumers by using the gravity force. Then optimal position and head of required pumps that transfer the remaining water needed to be used in consumers are discovered by using graphical decision maker of Hydraulic Pinch. In this way, the height differences between water resources and consumers are the important key parameters. The investigation conducted in this article, over 80 percent of the water needed by consumers has been transferred by gravity force and the remaining 20 percent have transferred by using the pumping devices that have optimal position and characterization of energy consumption viewpoints. The results of this analysis introduce the Hydraulic Pinch as efficient and suitable method for optimal designing of water distribution network.