The Effect of D/H Aspect Ratio Change on Energy Characteristics of H-type Darrieus Turbine
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Abstract
For the H-type Darrieus turbine runner, the geometry parameters such as runner diameter, blade height, number of blades, D/H ratio, blade profiles... have certain effects on working capacity and the efficiency of the turbine. Therefore in order to provide runner samples with high efficiency and working capability, it is needed to design, simulate and test many runner samples, and then select the most suitable one with real water flow condition. This paper simulates the circumstances on changing D/H aspect ratio of the runner samples, specifically in 03 cases including D/H=0.9, D/H=1 and D/H=1.1 to evaluate the working capacity and efficiency of the turbine, and then to establish the curves on power characteristics of H-type Darrieus turbine. Based on that, we can select the runner sample working better than the remaining samples.
Keywords
Simulation, H-type Darrieus turbine, hydro power, renewable energy, Ansys-Fluent software
Article Details
References
[1]. Farhan A. Khammas, Mustaffa, M.T,Ryspek U (2015). "Investigate the effect of different design parameter on performance evaluation of straight blade vertical axis wind turbine (SB-VAWT)", International journal of engineering technologies and management research
[2]. Phung Hong Tuấn, Đo Anh Tuan (2013), "Report on tidal survey and water flow velocity measurement results in some locations of Cat Ba insland Hai Phong province. Site selection for installation and experiment", Institute for hydro power and renewable energy, project: KC.05.13/11-15
[3]. Μ.Η. Mohamed, Performance investigation of H-rotor Darrieus turbine with new airfoil shapes, Renewable Energy Lab. of Mechanical Power Engineering Dept., Faculty of Engineering, Mattaria, Helwan University, P.O. 11718, Cairo, Egypt, (2012), pp.7
[4]. Rémi Gosselin, Guy Dumas, and Matthieu Boudreau, Parametric study of H-Darrieus vertical-axis turbines using uRANS simulations, Laboratoire de Mécanique des Fluides Numérique, Département de génie mécanique Université Laval, Québec, Québec, GIV 0A6, Canada, (2013), pp.3
[5]. Taher G. Abu-El-Yazied, Ahmad M. Ali, Mahdi S. Al-Ajmi, Islam M. Hassan, Effect of Number of Blades and Blade Chord Length on the Performance of Darrieus Wind Turbine, American Journal of Mechanical Engineering and Automation, (2015), pp.4
[2]. Phung Hong Tuấn, Đo Anh Tuan (2013), "Report on tidal survey and water flow velocity measurement results in some locations of Cat Ba insland Hai Phong province. Site selection for installation and experiment", Institute for hydro power and renewable energy, project: KC.05.13/11-15
[3]. Μ.Η. Mohamed, Performance investigation of H-rotor Darrieus turbine with new airfoil shapes, Renewable Energy Lab. of Mechanical Power Engineering Dept., Faculty of Engineering, Mattaria, Helwan University, P.O. 11718, Cairo, Egypt, (2012), pp.7
[4]. Rémi Gosselin, Guy Dumas, and Matthieu Boudreau, Parametric study of H-Darrieus vertical-axis turbines using uRANS simulations, Laboratoire de Mécanique des Fluides Numérique, Département de génie mécanique Université Laval, Québec, Québec, GIV 0A6, Canada, (2013), pp.3
[5]. Taher G. Abu-El-Yazied, Ahmad M. Ali, Mahdi S. Al-Ajmi, Islam M. Hassan, Effect of Number of Blades and Blade Chord Length on the Performance of Darrieus Wind Turbine, American Journal of Mechanical Engineering and Automation, (2015), pp.4