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

Authors

  • Dominic Laja Munggau Department of Mechanical Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia
  • Djamal Hissein Didane Center for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia
  • Sami Al-Alimi Department of Mechanical Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia
  • Yazid Abdullsameea Mohammed Saif Department of Mechanical Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia
  • Bukhari Manshoor Center for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia

DOI:

https://doi.org/10.37934/arfmts.105.1.210219

Keywords:

Blade design, HAWT, CFD Fluent, power coefficient, torque coefficient

Abstract

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.

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Author Biographies

Dominic Laja Munggau , Department of Mechanical Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia

CD180021@siswa.uthm.edu.my

Djamal Hissein Didane, Center for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia

djamal@uthm.edu.my

Sami Al-Alimi , Department of Mechanical Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia

samiabdo@uthm.edu.my

Yazid Abdullsameea Mohammed Saif, Department of Mechanical Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia

sameea@uthm.edu.my

Bukhari Manshoor, Center for Energy and Industrial Environment Studies (CEIES), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia

bukhari@uthm.edu.my

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Published

2023-06-01

How to Cite

Dominic Laja Munggau, Djamal Hissein Didane, Sami Al-Alimi, Yazid Abdullsameea Mohammed Saif, & Bukhari Manshoor. (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), 210–219. https://doi.org/10.37934/arfmts.105.1.210219

Issue

Vol. 105 No. 1: May (2023)

Section

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