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All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
Duma, G.A.
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Aerospace Engineering Automotive Engineering Mechanical Engineering Physics

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Analisis kinerja kincir air savonius poros vertikal dengan dua sudu pada beberapa variasi debit Duma, G.A.; Sule, L.; Hafid, H.D.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 13, No 2 (2023): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i2.656

Abstract

The Savonius waterwheel is a type of waterwheel with a vertical shaft rotation direction that can be used to convert the potential energy of water into energy of motion. This waterwheel works due to the difference in the force received at each blade. This test uses two semi-circular gutter blades which are paired oppositely to resemble the letter "S". The discharge variations given are opening valve 1 (damped 2), opening valve 2 (damped 1), and opening valve 3 (undamped). The results obtained show that opening valve 1 has the highest efficiency value of 18.97% with water power of 7.672 W and waterwheel power of 1.455 W.
Effect of variations in the hitting point on the blade on performance of overshot water turbine Duma, G.A.; Indah, A.B.R.; Sule, L.; Kondorura, K.
Dinamika Teknik Mesin Vol 15, No 1 (2025): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v15i1.970

Abstract

Water turbine is very important technology in producing electrical energy from renewable energy sources. Overshot turbine utilize specific gravity of water hit the blade and converts the potential energy of water into kinetic energy when the nozzle sprays water that hits the bucket and then passes it on to the transmission system becomes mechanical energy. This mechanical energy is converted into electrical energy by the generator. This research was carried out experimentally using five curved blades and an overshot turbine. The hitting point on blade distances are 0.13 m, 0.15 m, 0.17 m, 0.19 m, and 0.21 m and varying load, is 0.1 kg - 1.3 kg with constant discharge and head. The results obtained show that variations in hitting point on blades influence turbine power and turbine efficiency. The highest turbine power and efficiency for discharge of 0.0009 m3/s was obtained at hitting point of 0.13 m with load of 1 kg which produces 3.7888 watts of  turbine power and efficiency is 25.05 %.
Effect of variations in the hitting point on the blade on performance of overshot water turbine Duma, G.A.; Indah, A.B.R.; Sule, L.; Kondorura, K.
Dinamika Teknik Mesin Vol 15, No 1 (2025): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v15i1.970

Abstract

Water turbine is very important technology in producing electrical energy from renewable energy sources. Overshot turbine utilize specific gravity of water hit the blade and converts the potential energy of water into kinetic energy when the nozzle sprays water that hits the bucket and then passes it on to the transmission system becomes mechanical energy. This mechanical energy is converted into electrical energy by the generator. This research was carried out experimentally using five curved blades and an overshot turbine. The hitting point on blade distances are 0.13 m, 0.15 m, 0.17 m, 0.19 m, and 0.21 m and varying load, is 0.1 kg - 1.3 kg with constant discharge and head. The results obtained show that variations in hitting point on blades influence turbine power and turbine efficiency. The highest turbine power and efficiency for discharge of 0.0009 m3/s was obtained at hitting point of 0.13 m with load of 1 kg which produces 3.7888 watts of  turbine power and efficiency is 25.05 %.
Analisis kinerja kincir air savonius poros vertikal dengan dua sudu pada beberapa variasi debit Duma, G.A.; Sule, L.; Hafid, H.D.
Dinamika Teknik Mesin Vol 13, No 2 (2023): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i2.656

Abstract

The Savonius waterwheel is a type of waterwheel with a vertical shaft rotation direction that can be used to convert the potential energy of water into energy of motion. This waterwheel works due to the difference in the force received at each blade. This test uses two semi-circular gutter blades which are paired oppositely to resemble the letter "S". The discharge variations given are opening valve 1 (damped 2), opening valve 2 (damped 1), and opening valve 3 (undamped). The results obtained show that opening valve 1 has the highest efficiency value of 18.97% with water power of 7.672 W and waterwheel power of 1.455 W.
Co-Authors Hafid, H.D. Indah, A.B.R. Kondorura, K. Sule, L.