Minimum Cost Water Yield Strategy for Multiple Sources Water Distribution System

Minimizing water supply costs has always been the goal of companies. However, it is not an easy task to minimize and meet customers’ pressure needs in a system with multiple sources different unit discharge. In this paper, we develop search method that incorporates concepts local steepest descent. First, establish discharge each source as variable start searching neighborhood for feasible initial solution. The descent concept then used find most cost-effective solution neighborhood, before updated. We iterate described above until either constraint met or amount cost variation reaches acceptable level. A simple example explore optimal characteristics. This followed by analysis practical up six sources. Compared original operation model, optimized result can save 15.6%, 9.0%, 12.7% total during off-peak, normal, peak periods, respectively. use commonly hydraulic software EPANET build functional valve classes satisfy various constraints purpose simplifying codes automatically. uses low levels computational resources obtain reasonable short time.