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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10260043" target="_blank" >RIV/61989100:27230/25:10260043 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27730/25:10260043

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0960148125012224?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0960148125012224?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.renene.2025.123560" target="_blank" >10.1016/j.renene.2025.123560</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20300 - Mechanical engineering

Projekt

<a href="/cs/project/TK03030037" target="_blank" >TK03030037: Akumulační vodní elektrárna nového typu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Renewable Energy

ISSN

0960-1481

e-ISSN

1879-0682

Svazek periodika

2025

Číslo periodika v rámci svazku

252

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

nestránkováno

Kód UT WoS článku

001501840500002

EID výsledku v databázi Scopus

2-s2.0-105006662733