• Dandun Mahesa Prabowoputra Department of Industrial Engineering, Universitas Jenderal Soedirman, Purbalingga, Indonesia
  • Syamsul Hadi Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
  • Dominicus Danardono Dwi Prija Tjahjana Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
  • Mochamad Aziz Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia



Coefficient of Power, Design of Experiment, Hydro-turbine, CFD, Number of the blade.


The State Electricity Company supports 59% of the national electricity supply in Indonesia. The electricity supply from hydro energy is only 8.17%, so this value must be increased to reduce the supply of power plants sourced from fossil fuels. A water turbine is one of the main components in converting hydropower to electrical energy. A cross-flow type water turbine is one of the popular rotors in research in recent years. Several methods are used in turbine development research, including computational fluid dynamics and experimental methods. This research has been done using two methods: the experimental and CFD methods. The study was conducted on variations in the number of blades on the rotor, with variations in blades 3, 4, 6, 8, 10, and 12. This study aims to determine the effect of the number of blades on turbine performance. This study was carried out for five repetitions for each rotor. CFD analysis was performed using the Ansys Student version with the CFX solver. The meshing method is tetrahedral, with a speed limit of 4.91 m/s and outlet pressure according to room pressure. This study uses CFD to know the pressure contours and velocity streamlines. The results of this study were analyzed using a single-factor DOE. The most optimal number of blades is 3-blades producing 9.38 Watt of power, and the Coefficient of power is 0.0748. Analysis of Variance for the Single-Factor shows that the number of blades significantly affects the energy produced. Cross-flow rotor design with 3-blades is a good design alternative for hydro turbines.


Sekretariat Direktorat Jenderal Ketenagalistrikan. 2021. Statistik Ketenagalistrikan 2020, Direktorat Jenderal Ketenagalistrikan. 34

Sarma, N.K., Biswas, A., and Mirsa, R.D. 2014. Experimental and computational evaluation of Savonius hydrokinetic turbine for low velocity condition with comparison to Savonius wind turbine at the same input power. Energy Conversion and Management. 83: 88-98.

Hadi, S., Khuluqi, H., Prabowoputra, D.M., Prasetyo, A., Tjahjana, D.D.D.P., And Farkhan, A. 2019. Performance of Savonius Horizontal Axis Water Turbine in Free Flow Vertical Pipe as Effect of Blade Overlap. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 58, Issue 2: 219-223.

Nadhief, M.I., Prabowoputra, D.M., Hadi, S., and Tjahjana, D.D.D.P. 2020. Experimental Study on the Effect of Variation of Blade Arc Angle to the Performance of Savonius Water Turbine Flow in Pipe. International Journal of Mechanical Engineering and Robotics Research 9(5): 779-783.

Chen, J., Yang, H., Liu, C., Lau, C., dan Lo, M., 2013, A Novel Vertical Axis Water Turbine for Power Generation from Water Pipelines. Energy, 54: 184-193.

Prabowoputra, D.M., Prabowo, A.R., Hadi, S., and Sohn, J.M.2020. The effect of multi-stage modification on the performance of Savonius water turbines under the horizontal axis condition.Open Engineering, 10(1): 793-803. DOI:

Prabowoputra D.M., and Prabowo, A.R. 2022. Effect of the Phase-Shift Angle on the vertical axis Savonius wind turbine performance as a renewable-energy harvesting instrument. Energy Reports. 8(9): 57-66, ISSN 2352-4847, DOI:

Hamzah, I., Prasetyo, A., Tjahjana, D.D.D.P., and Hadi, S. 2017.Effect of blades number to performance of Savonius water turbine in water pipe. AIP Conference Proceedings. 19319

Prabowoputra, D.M., Prabowo, A.R., Hadi, S., and Sohn, J.M. 2020. Performance Assessment of Water Turbine Subjected to Geometrical Alteration of Savonius Rotor. Proceedings of the 6th International Conference and Exhibition on Sustainable Energy and Advanced Materials. Lecture Notes in Mechanical Engineering. Springer, Singapore. DOI:

Payambarpour, S.A., Najafi, A.F., and Magagnato, F. 2019. Investigation of Blade Number Effect on Hydraulic Performance of In-Pipe Hydro Savonius Turbine. International Journal of Rotating Machiner, 2019 Article ID: 8394191

Okokpujie, I.P., Okonkwo, U.C., Bolu, C.A., Ohunakin, O.S., Agboola, M.G., Atayero, A.A. 2020. Implementation of multi-criteria decision method for selection of suitable material for development of horizontal wind turbine blade for sustainable energy generation. Heliyon. e03142.

Prabowoputra, D.M., Prabowo, A.R., Bahatmaka, A., and Hadi, S. 2020. Analytical Review of Material Criteria as Supporting Factors in Horizontal Axis Wid Turbines: Effect to Structural Responses. Procedia Structural Integrity, 27 (2020): 155–162.

Dathu, K.P.M.Y.V., Hariharan, R. 2020. Design of wind turbine blade material for higher efficiency. Materials Today: Proceedings. ISSN 2214-7853, DOI:

Prabowo, A.R., and Prabowoputra, D.M. 2020. Investigation on Savonius turbine technology as harvesting instrument of non-fossil energy: Technical development and potential implementation.Theoretical & Applied Mechanics Letters 10: 262-269

Prabowoputra, D.M., and Ridwan, R. 2021.Deformation of designed steel plates: An optimisation of the side hull structure using the finite element approach, Open Engineering,11(1): 1034-1047

Prabowoputra, D.M., Prabowo, A.R., Hadi, S. and Sohn, J.M. (2021), "Assessment of turbine stages and blade numbers on modified 3D Savonius hydrokinetic turbine performance using CFD analysis", Multidiscipline Modeling in Materials and Structures. 17(1): 253-272.

Purwanto, Budiono, Hermawan, and Prabowoputra, D.M. 2022. Simulation Study on Cross Flow Turbine Performance with an angle of 20 ° to the variation of the number of blades. International Journal of Mechanical Engineering and Robotics Research, 11(1): 31-36.

Tjahjana,D.D.D.P., Purbaningrum, P., Hadi, S., Wicaksono, Y.A., and Adiputra, D. 2018. The study of the influence of the diameter ratio and blade number to the performance of the cross flow wind turbine by using 2D computational fluid dynamics modeling. AIP Conference Proceedings 1931: 030034

Sartomo, A., Prabowoputra, D.M., and Suyitno. 2020. Factorial design of the effect of reaction temperature and reaction time on biodiesel production. AIP Conference Proceedings 2217: 030052

Prabowoputra, D.M., Sartomo, A., and Suyitno. 2020. The effect of pressure and temperature on biodiesel production using castor oil. AIP Conference Proceedings 2217: 030051

Phommachanh, S., Shinnosuke, O., Sutikno, P., and Soewono. A. Simulation And Piv Experiment Of The Ducted Water Current Turbine And Extremely Low Head Helical Turbine. ASEAN Engineering Journal Part A, 3(2): 54-69

Maw, Y.Y., and Tun, M.T. 2021. Sensitivity Analysis Of Angle, Length And Brim Height Of The Diffuser For The Small Diffuser Augmented Wind Turbine Using The Numerical Investigation. ASEAN Engineering Journal, 11(4): 280-291, e-ISSN 2586-9159.

Prabowoputra, D.M., Prabowo, A.R., Hadi, S., and Sohn, J.M. 2020. Performance Investigation of the Savonius Horizontal Water Turbine Accounting for Stage Rotor Design. International Journal of Mechanical Engineering and Robotics Research 9 (2): 184-189

Montgomery, D.C. 2017. Design and analysis of experiments. (John Wiley & sons, 2017)

Bausas, M.D.L.S., and Danao, L.A. 2016. On The Performance Of Vertical Axis Wind Turbines In Steady Wind Under Various Blade Camber Levels .ASEAN Engineering Journal Part A.6(1):12-26




How to Cite

Prabowoputra, D. M., Hadi, S., Prija Tjahjana, D. D. D., & Aziz, M. (2023). SINGLE-FACTOR ANALYSIS OF VARIANCE ON THE EFFECT OF BLADE’S NUMBER ON ROTOR DRAG-TYPE PERFORMANCE. ASEAN Engineering Journal, 13(4), 7–12.