Evolution of water network using improved source shift algorithm and water path analysis

An improved source shift algorithm (SSA) and water path analysis (WPA) is proposed in this work to evolve a preliminary water network. The earlier version of SSA, which reduces the complexity of a preliminary water network, is iterative in nature and involves trial-and-error solution. The improved SSA proposed in this work is noniterative and is able to evolve the preliminary water network while maintaining its minimum freshwater and wastewater flow rates. Moreover, the WPA is used to shift the water loads along a water path to reduce the number of interconnections by incurring a penalty on both freshwater and wastewater flow rates. Three literature examples are solved to illustrate the applicability of the developed methods.