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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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Main Authors:	Dominic Laja Munggau, Dominic Laja Munggau, Djamal Hissein Didane, Djamal Hissein Didane, Sami Al-Alimi, Sami Al-Alimi, Mohammed Saif, Yazid Abdullsameea, Manshoor, Bukhari
Format:	Article
Language:	English
Published:	semarak ilmu 2023
Subjects:	T Technology (General)
Online Access:	http://eprints.uthm.edu.my/9616/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf http://eprints.uthm.edu.my/9616/ https://doi.org/10.37934/arfmts.105.1.210219
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spelling	my.uthm.eprints.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
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) 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
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	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
title	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_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_sort	computational study on the influence of duct on the performance of darrieus hydro-turbine
publisher	semarak ilmu
publishDate	2023
url	http://eprints.uthm.edu.my/9616/1/J16135_8ef9b4fa9ffb7cd18781af7126d720df.pdf http://eprints.uthm.edu.my/9616/ https://doi.org/10.37934/arfmts.105.1.210219
_version_	1775624946479792128
score	13.211869

Computational Study on the Influence of Duct on The Performance of Darrieus Hydro-Turbine

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