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Computational Study on the Influence of Duct on The Performance ofDarrieus 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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Main Authors: Munggau, Dominic Laja, Didane, Djamal Hissein, Al-Alimi, Sami, Mohammed Saif, Yazid Abdullsameea, Manshoo, Bukhari
Format: Article
Language:English
Published: semarak ilmu 2023
Subjects:
T Technology (General)
Online Access:http://eprints.uthm.edu.my/11626/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf
http://eprints.uthm.edu.my/11626/
https://doi.org/10.37934/arfmts.105.1.210219
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spelling my.uthm.eprints.116262024-09-25T07:24:26Z http://eprints.uthm.edu.my/11626/ Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine Munggau, Dominic Laja Didane, Djamal Hissein Al-Alimi, Sami Mohammed Saif, Yazid Abdullsameea Manshoo, 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/11626/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf Munggau, Dominic Laja and Didane, Djamal Hissein and Al-Alimi, Sami and Mohammed Saif, Yazid Abdullsameea and Manshoo, Bukhari (2023) Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 5 (1). pp. 210-219. ISSN 2289-7879 https://doi.org/10.37934/arfmts.105.1.210219
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Munggau, Dominic Laja
Didane, Djamal Hissein
Al-Alimi, Sami
Mohammed Saif, Yazid Abdullsameea
Manshoo, Bukhari
Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine
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.
format Article
author Munggau, Dominic Laja
Didane, Djamal Hissein
Al-Alimi, Sami
Mohammed Saif, Yazid Abdullsameea
Manshoo, Bukhari
author_facet Munggau, Dominic Laja
Didane, Djamal Hissein
Al-Alimi, Sami
Mohammed Saif, Yazid Abdullsameea
Manshoo, Bukhari
author_sort Munggau, Dominic Laja
title Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine
title_short Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine
title_full Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine
title_fullStr Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine
title_full_unstemmed Computational Study on the Influence of Duct on The Performance ofDarrieus Hydro-Turbine
title_sort computational study on the influence of duct on the performance ofdarrieus hydro-turbine
publisher semarak ilmu
publishDate 2023
url http://eprints.uthm.edu.my/11626/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf
http://eprints.uthm.edu.my/11626/
https://doi.org/10.37934/arfmts.105.1.210219
_version_ 1811687210050650112
score 13.211869

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