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Reaction cross-flow turbine for small hydropower plants: Flow profile design and CFD analysis

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  • Lukeš, Roman
  • Honus, Stanislav
  • Blejchař, Tomáš
  • Balco, Mário

Abstract

Harnessing hydropower efficiently is crucial for sustainable energy production. Traditional impulse Cross-Flow turbines do not fully utilize the available hydraulic head, limiting their effectiveness in small-scale hydropower. The Reaction Cross-Flow turbine introduced in this study overcomes this limitation by operating as a reaction turbine, enabling full head utilization at a given site. This approach increases energy extraction and expands the applicability of Cross-Flow technology especially in run-of-river hydropower plants. This study presents a novel design approach for a Reaction Cross-Flow turbine, focusing on performance and structural optimization. A computational methodology was developed and applied to a turbine with a flow rate of 120 l/s and a head of 5.5 m. Transient numerical simulations in Ansys CFX validated the design, demonstrating a hydraulic efficiency of 79.43 %, with further potential for improvement. The resulting turbine features a compact and simplified construction compared to existing designs. This research encourages further optimization of key design aspects, such as blade geometry, cavitation control, and outlet channel configuration. The findings suggest promising directions for future studies, including the adaptation of the turbine for reverse operation. The proposed design framework serves as a foundation for advancing Reaction Cross-Flow turbine technology and improving hydropower efficiency.

Suggested Citation

  • Lukeš, Roman & Honus, Stanislav & Blejchař, Tomáš & Balco, Mário, 2025. "Reaction cross-flow turbine for small hydropower plants: Flow profile design and CFD analysis," Renewable Energy, Elsevier, vol. 252(C).
    • Handle: RePEc:eee:renene:v:252:y:2025:i:c:s0960148125012224
    DOI: 10.1016/j.renene.2025.123560
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    References listed on IDEAS

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    1. José Pedro Ramião & Cláudia Carvalho-Santos & Rute Pinto & Cláudia Pascoal, 2023. "Hydropower Contribution to the Renewable Energy Transition Under Climate Change," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(1), pages 175-191, January.
    2. Sinagra, Marco & Aricò, Costanza & Tucciarelli, Tullio & Morreale, Gabriele, 2020. "Experimental and numerical analysis of a backpressure Banki inline turbine for pressure regulation and energy production," Renewable Energy, Elsevier, vol. 149(C), pages 980-986.
    3. Acharya, Nirmal & Kim, Chang-Gu & Thapa, Bhola & Lee, Young-Ho, 2015. "Numerical analysis and performance enhancement of a cross-flow hydro turbine," Renewable Energy, Elsevier, vol. 80(C), pages 819-826.
    4. Ram Adhikari & David Wood, 2018. "The Design of High Efficiency Crossflow Hydro Turbines: A Review and Extension," Energies, MDPI, vol. 11(2), pages 1-18, January.
    5. Rui Cao & Jianjian Shen & Chuntian Cheng & Jian Wang, 2020. "Optimization Model for the Long-Term Operation of an Interprovincial Hydropower Plant Incorporating Peak Shaving Demands," Energies, MDPI, vol. 13(18), pages 1-21, September.
    6. Rudimar Caricimi & Géremi Gilson Dranka & Dalmarino Setti & Paula Ferreira, 2022. "Reframing the Selection of Hydraulic Turbines Integrating Analytical Hierarchy Process (AHP) and Fuzzy VIKOR Multi-Criteria Methods," Energies, MDPI, vol. 15(19), pages 1-26, October.
    7. Vincenzo Sammartano & Costanza Aricò & Armando Carravetta & Oreste Fecarotta & Tullio Tucciarelli, 2013. "Banki-Michell Optimal Design by Computational Fluid Dynamics Testing and Hydrodynamic Analysis," Energies, MDPI, vol. 6(5), pages 1-24, April.
    8. Kumar, Pardeep & Saini, R.P., 2010. "Study of cavitation in hydro turbines--A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(1), pages 374-383, January.
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