Studi Eksperimental Performance Kincir Air Breastshot dengan Menggunakan Nozzle


  • Muhammd Helmi Kurniawan Universitas Brawijaya
  • Rudy Soenoko Universitas Brawijaya
  • Winarto Winarto Universitas Brawijaya
  • Alfeus Sunarso Politeknik Negeri Pontianak



Waterwheel, Breastshot, Nozzle, Efficiency


The purpose of this study was to determine the performance of a waterwheel with a breastshot using a nozzle. The test was carried out experimentally on a laboratory scale and to anticipate the relatively large size of the program because of the complexity in data acquisition and control, the Arduino Mega 2560 board was used. In this study, a breastshot-type waterwheel with 12 blades with a water flow rate of 12 liters/second was used. By using the analysis, the results show that the mechanical data and the efficiency of the wheel are affected by the flow of water hitting the blade using a nozzle. The tilt angle of the nozzle is very important, the steeper the nozzle, the faster the water flow will hit the blade of the wheel. In the rotation test (rpm), the highest mechanical power and efficiency at the use of a single nozzle with an angle (25 °) of the highest efficiency is 86.34% at 76 rpm, which is 33 Watt and the lowest power is 15 Watt at 19 rpm with an efficiency of 39.76% at discharge 12 liters / second. While the use of a double nozzle with an angle (25 ° -15 °) has the highest efficiency of 89.26% at 63 rpm, which is 37 Watt and the lowest power is at 16 rpm, which is 14 Watt, with an efficiency of 35.4% at a discharge of 15 liters / second.


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