Abstract
The Turgo turbine is a pico-scale water turbine that can produce less than 5kW electricity at low altitudes. Turgo turbines also have quite affordable investment and maintenance costs. Turgo turbine design is strongly influenced by the speed triangle and the size of the nozzle diameter. This study aims to compare the nozzle diameter with the nozzle distance on the coconut shell blade on the efficiency of the Turgo turbine. This turbine is designed with a height of 3.5 m, a flow rate of 32.5 l/m, with various diameters and nozzle distances. Variations in the diameter of the nozzle are 8,10,12 mm, and the nozzle distance is 100, 150,200 mm. based on the study results, the best diameter is 8 mm and a distance of 100 mm. The results of the computational efficiency of 49%.
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