New Expressions to Apply the Variation Operation Strategy in Engineering Tools Using Pumps Working as Turbines

The improvement in energy saving aspects water systems is currently a topic of major interest. utilization pumps working as turbines relevant strategy distribution networks consisting pressurized pipes, using these machines to recover energy, generate green and reduce leakages systems. need develop studies, prior the installation facilities, requires use simulation tools. These tools should be able define operation curves machine function flow rate. This research proposes new mathematics model for (PATs), considering modified affinity laws. proposed model, which can input into hydraulic (e.g., Epanet, WaterGems), allows estimation head, efficiency, power PATs when operating at different rotational speeds. used 87 15 model. improves results previously published models, reducing error height, values. reduced errors by between 30 50% compared rest models.