Abstract
Pumps as turbine can be utilized in water systems to convert waste energy into electricity and reduce leakage rates, offering an effective and affordable solution. Accurately estimating the energy production of a pump as turbine (PAT) is crucial for water stakeholders in order to calculate the payback period. Unfortunately, pump manufacturers do not provide pump characteristics in turbine mode, necessitating the development of experimental correlations by researchers to predict the characteristics. In this study, recent correlations are compared to experimental results obtained from a test rig. The use of a large database improves the accuracy of the predictions of characteristic curves and best efficiency points (BEP) in variable rotational speed. Finally, a prediction guideline is made to enable accurate prediction of the performance of a pump in turbine mode.
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