Impact of storage tanks in water distribution system of the city Krosno on energy consumption and costs in water pumping stations

The aim of the presented study is to evaluate the impact of water supply tanks that cooperate with the water distribution system on the energy costs of water supply pumping stations. Network tanks accumulate a supply of water at night with low water intakes, making it possible to design a smaller pumping station. To achieve the above goal, a model of the water distribution system of the city of Krosno was prepared and numerical simulations were carried out using the EPANET program for various variants with an additional water tank at various locations. For each variant, the daily cost of pumping station operation, as well as the average and maximum electricity consumption, were read. A comparison of the results shows a positive impact on the reduction in the energy costs of water pumping stations.