Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine
Hydropower is considered one of the most reliable, inexpensive and environmentally friendly sources of renewable energies and it is predicted to play a significant role in future sustainable energy systems. The straight-blade Darrieus turbine is receiving more attention as it is simple to build at a...
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| Format: | Article |
| Language: | English |
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semarak ilmu
2023
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| Online Access: | http://eprints.uthm.edu.my/9616/ http://eprints.uthm.edu.my/9616/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf |
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| author | Dominic Laja Munggau, Dominic Laja Munggau Djamal Hissein Didane, Djamal Hissein Didane Sami Al-Alimi, Sami Al-Alimi Mohammed Saif, Yazid Abdullsameea Manshoor, Bukhari |
| author_facet | Dominic Laja Munggau, Dominic Laja Munggau Djamal Hissein Didane, Djamal Hissein Didane Sami Al-Alimi, Sami Al-Alimi Mohammed Saif, Yazid Abdullsameea Manshoor, Bukhari |
| author_sort | Dominic Laja Munggau, Dominic Laja Munggau |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | Hydropower is considered one of the most reliable, inexpensive and environmentally friendly sources of renewable energies and it is predicted to play a significant role in future sustainable energy systems. The straight-blade Darrieus turbine is receiving more attention as it is simple to build at an inexpensive cost. However, Darrieus turbines still
have a lower efficiency as opposed to axial turbines. Therefore, in this study, the Darrieus turbine is equipped with a duct geometry in the center in order to enhance its conversion efficiency using the computational fluid dynamics (CFD) simulation technique. A 2D simulation model with NACA 663-018 airfoil profile is developed to perform the simulation
in Ansys Fluent software while using the K-ω shear stress transport (SST) as the turbulence model. The computational simulations cover a parametric study based on the variation of the rotational speeds while keeping the upstream velocity constant. The performances are evaluated in terms of power, power coefficient, torque and torque coefficient. The
simulation results showed that the power coefficient and torque coefficient were found to increase with the rotational speeds with the highest efficiency at the TSR of 2 and then
decrease. A similar conclusion was drawn in terms of power and torque output. However, the maximum power coefficient and torque coefficient were about 54% and 27%, respectively. |
| first_indexed | 2025-11-15T20:30:45Z |
| format | Article |
| id | uthm-9616 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:30:45Z |
| publishDate | 2023 |
| publisher | semarak ilmu |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-96162023-08-07T02:27:36Z http://eprints.uthm.edu.my/9616/ Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine Dominic Laja Munggau, Dominic Laja Munggau Djamal Hissein Didane, Djamal Hissein Didane Sami Al-Alimi, Sami Al-Alimi Mohammed Saif, Yazid Abdullsameea Manshoor, Bukhari T Technology (General) Hydropower is considered one of the most reliable, inexpensive and environmentally friendly sources of renewable energies and it is predicted to play a significant role in future sustainable energy systems. The straight-blade Darrieus turbine is receiving more attention as it is simple to build at an inexpensive cost. However, Darrieus turbines still have a lower efficiency as opposed to axial turbines. Therefore, in this study, the Darrieus turbine is equipped with a duct geometry in the center in order to enhance its conversion efficiency using the computational fluid dynamics (CFD) simulation technique. A 2D simulation model with NACA 663-018 airfoil profile is developed to perform the simulation in Ansys Fluent software while using the K-ω shear stress transport (SST) as the turbulence model. The computational simulations cover a parametric study based on the variation of the rotational speeds while keeping the upstream velocity constant. The performances are evaluated in terms of power, power coefficient, torque and torque coefficient. The simulation results showed that the power coefficient and torque coefficient were found to increase with the rotational speeds with the highest efficiency at the TSR of 2 and then decrease. A similar conclusion was drawn in terms of power and torque output. However, the maximum power coefficient and torque coefficient were about 54% and 27%, respectively. semarak ilmu 2023 Article PeerReviewed text en http://eprints.uthm.edu.my/9616/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf Dominic Laja Munggau, Dominic Laja Munggau and Djamal Hissein Didane, Djamal Hissein Didane and Sami Al-Alimi, Sami Al-Alimi and Mohammed Saif, Yazid Abdullsameea and Manshoor, Bukhari (2023) Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 105 (1). pp. 210-219. ISSN 2289-7879 https://doi.org/10.37934/arfmts.105.1.210219 |
| spellingShingle | T Technology (General) Dominic Laja Munggau, Dominic Laja Munggau Djamal Hissein Didane, Djamal Hissein Didane Sami Al-Alimi, Sami Al-Alimi Mohammed Saif, Yazid Abdullsameea Manshoor, Bukhari Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine |
| title | Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine |
| title_full | Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine |
| title_fullStr | Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine |
| title_full_unstemmed | Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine |
| title_short | Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine |
| title_sort | computational study on the influence of duct on the performance of darrieus hydro-turbine |
| topic | T Technology (General) |
| url | http://eprints.uthm.edu.my/9616/ http://eprints.uthm.edu.my/9616/ http://eprints.uthm.edu.my/9616/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf |