STUDI EKSPERIMENTAL PENGARUH SUDUT KEMIRINGAN POROS TERHADAP KINERJA TURBIN ULIR ARCHIMEDES ULIR TUNGGAL

Dwi Cahyo, Vergian (2023) STUDI EKSPERIMENTAL PENGARUH SUDUT KEMIRINGAN POROS TERHADAP KINERJA TURBIN ULIR ARCHIMEDES ULIR TUNGGAL. Thesis thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

The need for electrical energy currently covers various activities of human life in the industrial sector, electronic devices, and electric transportation. The use of conventional fuels such as coal is still the main fuel to run steam turbines as electric power plants. Water flow micro hydro power plant can be utilized as a long-term small-scale hydro power plant. The working system of the Archimedes screw turbine utilizes the descending flow velocity to generate power with the low head that does not have a special control system. The purpose of this study is to investigate the effects of variations in shaft tilt angle on the mechanical performance of screw turbines and identify the position of the shaft tilt angle that has the greatest efficiency. The research was conducted on a screw turbine model with a diameter of 15 cm, 10 pieces of blades, 10 cm pitch distance, and thread length of 100 cm with variations in tilt angles of 20˚, 30˚, and 40˚ with a water discharge of 4.4 l / s. The conclusion that can be obtained from this research is the highest mechanical power value was generated by the Archimedes screw turbine at the loading of 1.5 kg in 12.243 watts with the efficiency of 47.41% at the angle of inclination of 30˚.

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