A research on water pumping with cetrifugal pump using solar energy

In this study, some technical parameters of irrigation system powered with solar energy (PVWP) used to run a centrifugal pump have been investigated. For this purpose, the electrical properties such as current, voltage and power and efficiency of the PVWP system consists of 5 modules including 72 PV cells were determined. Water pumped, hydraulic powers and efficiencies of the centrifugal pump run with electricity generated PV cells were calculated. The efficiency of electricity generation of the PV system varied from 4.8 % to 5.4% and the average electrical efficiency was 5.2 %. When the power given to shaft of pump are 1000 W, 1500 W, 2000 W and 3000 W, the flow rates of the pump were determined as 4,76 L/s, 7,14 L/s, 9,52 L/s and 14,28 L/s, respectively. In this case, hydraulic powers of the pump were calculated as 700 W, 1050 W, 1400 W and 2100 W, respectively. The average efficiency of the centrifugal pump was 70% at different flow rates and shaft powers and constant total head (Hm= 15 mSS)