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All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
Sule, L.
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Aerospace Engineering Automotive Engineering Mechanical Engineering Physics

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Analisis kinerja turbin air arus bawah bentuk sudu bengkok dengan variasi material Duma, G. A.; Sule, L.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 12, No 2 (2022): 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.v12i2.548

Abstract

A water turbine is a device used to convert the potential energy of water into mechanical energy. This mechanical energy is then converted into electrical energy by a generator. This test was carried out experimentally using a crooked blade type with six blades and the type of water turbine used was undershoot. Various types of blade materials are plastic, aluminium, and iron. As well as varying the opening of fluid flow, namely the valve opening of 25%, 50%, 75%, and 100%. The results obtained indicate that variations in turbine blade material have an effect on turbine power and turbine efficiency The highest turbine power and efficiency was obtained at 100% valve opening with a load of 0.7 kg on plastic, iron and aluminium material. The highest turbine power is 1.16 watts for the plastic blade, the aluminium blade is 1.22 watts, and for the iron, the blade is 1.1 watts. The highest efficiency obtained for plastic blades is 50.14 % for experiment and theoretical is 5.67%, aluminium blades are 52.77% for experiment and 54.41% for theoretical, iron blades are 47.5% for experiment and 48.97% for theoretical.
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 turbin air arus bawah bentuk sudu bengkok dengan variasi material Duma, G. A.; Sule, L.
Dinamika Teknik Mesin Vol 12, No 2 (2022): 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.v12i2.548

Abstract

A water turbine is a device used to convert the potential energy of water into mechanical energy. This mechanical energy is then converted into electrical energy by a generator. This test was carried out experimentally using a crooked blade type with six blades and the type of water turbine used was undershoot. Various types of blade materials are plastic, aluminium, and iron. As well as varying the opening of fluid flow, namely the valve opening of 25%, 50%, 75%, and 100%. The results obtained indicate that variations in turbine blade material have an effect on turbine power and turbine efficiency The highest turbine power and efficiency was obtained at 100% valve opening with a load of 0.7 kg on plastic, iron and aluminium material. The highest turbine power is 1.16 watts for the plastic blade, the aluminium blade is 1.22 watts, and for the iron, the blade is 1.1 watts. The highest efficiency obtained for plastic blades is 50.14 % for experiment and theoretical is 5.67%, aluminium blades are 52.77% for experiment and 54.41% for theoretical, iron blades are 47.5% for experiment and 48.97% for theoretical.
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 Duma, G. A. Duma, G.A. Hafid, H.D. Indah, A.B.R. Kondorura, K.