Optimization of Blade Curve of Pump as Turbine for Piko Hydro Power Plants

摘要

The use of the NS 50 water pump that functions as a turbine for the PikoHidro Power Plant was an idea in finding simple and easy alternative energy in its assembly. In this application a water pump was used as a turbine so the working principle was reversed, where water from a certain height will move the pump, so that the pump impeller rotates and continues to rotate the generator and will generate electrical energy. This study emphasizes the experimental pump functioned as a turbine (PAT) by modifying the same in and out angles on the PAT blade. An NS-50 pump water pump with a capacity of 563.22 liters / minute and a total head of 20 m was tested. The variables used were water level (H) was 3 meters and variations in the different entry and exit angles of the impeller in the 7 specimens used. The pump was then connected to a generator and the result was electricity. The results showed that the best variation was in variations in the exit and entry angles of 30/30, rotation was 810 rpm and the power produced was 90 watts. The experimental results show good results theoretically.