Performance Study of Twisted Darrieus Hydrokinetic Turbine With Novel Blade Design
| Autor: | Bouzid Mosbahi, Mariem Lajnef, Mouna Derbel, Mabrouk Mosbahi, Zied Driss, Tullio Tucciarelli, Costanza Aricò |
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| Přispěvatelé: | Mosbahi M., Derbel M., Lajnef M., Mosbahi B., Driss Z., Arico C., Tucciarelli T. |
| Rok vydání: | 2021 |
| Předmět: |
060102 archaeology
Blade (geometry) Renewable Energy Sustainability and the Environment business.industry Turbulence 020209 energy Mechanical Engineering Energy Engineering and Power Technology 06 humanities and the arts 02 engineering and technology Computational fluid dynamics Turbine Settore ICAR/01 - Idraulica Fuel Technology Geochemistry and Petrology 0202 electrical engineering electronic engineering information engineering Environmental science 0601 history and archaeology business alternative energy sources blade shape CFD efficiency energy extraction of energy from its natural resource flow characteristics power (co-) generation renewable energy twisted blade Hydraulic turbines Marine engineering |
| Zdroj: | Journal of Energy Resources Technology. 143 |
| ISSN: | 1528-8994 0195-0738 |
| DOI: | 10.1115/1.4051483 |
| Popis: | Twisted Darrieus water turbine is receiving growing attention for small-scale hydropower generation. Accordingly, the need for raised water energy conversion incentivizes researchers to focus on the blade shape optimization of twisted Darrieus turbine. In view of this, experimental analysis has been performed to appraise the efficiency of a spiral Darrieus water rotor in the present work. To better the performance parameters of the studied water rotor with twisted blades, three novel blade shapes, namely U-shaped blade, V-shaped blade, and W-shaped blade, have been numerically tested using a computational fluid dynamics three-dimensional numerical model. The maximum power coefficient of the Darrieus rotor reaches 0.17 at a 0.63 tip-speed ratio using twisted blades. Using V-shaped blades, the maximum power coefficient has risen to 0.185. The current study could be practically applied to provide more effective employment of twisted Darrieus turbines and to improve the generated power from flowing water such as river streams, tidal currents, or other man-made water canals. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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