A Study Of The Optimal Performance Of A Mini Hydro Turbine Generator Based On Flow Rate Variations

Authors

  • Dodik Fitransyah
  • F.A. Widiharsaa
  • Rudi Hariyanto

DOI:

https://doi.org/10.26905/jtmt.v22i1.17827

Keywords:

efficiency, Activation Energy, Mini water turbines

Abstract

Efforts to generate electrical energy are by utilizing water turbines as generator drivers. Mini water turbine generators are one alternative solution. The performance testing of this mini water turbine prototype uses water flow from a reservoir which is forwarded through a pump based on variations in discharge using a 220 Volt AC dimmer. The mini water turbine prototype is a crossflow turbine (Banki) type water turbine, has 21 blades, an inlet (nozzle) diameter of 2.5 mm, an outlet diameter of 15 mm and an axial gap of 0.2 - 1.0 mm. In this test, a 12 Volt DC LED lamp load was used. The results of this water turbine prototype test produced the highest efficiency of 54.6% at a water flow rate of 5.7 (liters/minute), a DC electric current of up to 423 (Ma) with a power of 4.03 Watts and a voltage of 9.53 Volts.

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References

[1] Z. de Souza and G. L. Tiago Filho, Pelton and Crossflow Impulse Hydraulic Turbines. Cham, Switzerland: Springer, 2025, doi: 10.1007/978-3-031-87086-6.

[2] G. Cornetti, Hydraulic Machines and Energy. Cham, Switzerland: Springer, 2024, doi: 10.1007/978-3-030-91601-5.

[3] G. I. Krivchenko, Hydraulic Machines: Turbines and Pumps, 2nd ed. Boca Raton, FL, USA: Lewis Publishers, 1994.

[4] J. S. Gulliver and R. E. A. Arndt, Eds., Hydropower Engineering Handbook. New York, NY, USA: McGraw-Hill, 1991.

[5] A. R. Inversin, Micro-Hydropower Sourcebook: A Practical Guide to Design and Implementation in Developing Countries. Washington, DC, USA: NRECA International Foundation, 1986.

[6] S. L. Dixon and C. A. Hall, Fluid Mechanics and Thermodynamics of Turbomachinery, 6th ed. Oxford, U.K.: Butterworth-Heinemann, 2010.

[7] Y. A. Çengel and J. M. Cimbala, Fluid Mechanics: Fundamentals and Applications, 3rd ed. New York, NY, USA: McGraw-Hill, 2014.

[8] M. Nechleba, Hydraulic Turbines: Their Design and Equipment. Prague, Czechoslovakia: Artia, 1957.

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Published

2026-03-01

Issue

Vol. 22 No. 1 (2026): March 2026

Section

Article

License

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