Micro Hydro Power Plant (MHP) performance using breast-shot waterwheel with different electrical load to improve efficiency

Yusuf Dewantoro Herlambang (Politeknik Negeri Semarang, Scopus Author ID:57194209980)
Bono Bono (Politeknik Negeri Semarang)
Gatot Suwoto (Politeknik Negeri Semarang)
Baktiyar Mei Hermawan (Politeknik Negeri Semarang)
F. Gatot Sumarno (Politeknik Negeri Semarang)
Margana Margana (Politeknik Negeri Semarang)
Marliyati Marliyati (Politeknik Negeri Semarang)

Jurnal Polimesin
Vol 22, No 3 (2024): June

The aim of this study is to investigate the performance of breast-shot waterwheel with different electrical loads to increase efficiency. The method used is to design a pinwheel blade using blade material with a supporting frame added to the top, middle, and bottom of the pinwheel blade. The blade material used a thickness of 1.5 mm with angle iron installed on the three sides of the blade with a size of 30 mm × 30 mm × 3 mm. Tests were carried out with variations in lamp load when the water flow rate and water velocity were constant. Parameters measured in this test are water flow rate (m3/s), velocity of water (m/s), head of water (m), generator rotation (rpm), electric current (A), and generator output voltage (V). The results of the Hydro Power Plant (MHP) test with a waterwheel drive with the highest efficiency value at a water discharge of 0.267 m3/s, a velocity of 5.069 m/s, a generator rotation of 940 rpm, and a load of 840 W, which is 10.74%.