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- Title
Aerodynamic design of horizontal axis wind turbine using different airfoils.
- Authors
Mirzaei, Rahmat Allah; Mirhosseini, Mojtaba; Farajollahi, Meisam
- Abstract
The blade element momentum (BEM) theory has been employed to examine the aerodynamic parameters such as lift, drag, and thrust coefficient. Tip loss factor is one of the most important parameters to improve BEM theory. Glauert and Prantl represented different expressions for tip loss factor which have been used commonly in the literature. However, the measurements and theoretical analyses show that existing tip loss factors are inconsistent and fail to predict correctly the physical behavior of the blade tip. A new tip loss factor has been proposed by Shen that remedies the inconsistency. In this study, Shen's formula as the newest tip loss factor has been utilized to analyze thirteen different airfoil performances. The results indicate that the blade with the RIS0-A1-24 airfoil has the shortest chord length, approximately 1.8 meters, which is considered a significant advantage due to reduced material weight and construction costs. Moreover, the RIS0-A1-24 and FFA-W3-211 Free Transition airfoils are the most effective in terms of power generation, as their total power coefficient values versus tip speed ratio changes are higher compared to other airfoils. Additionally, airfoils such as FFA-W3-241 and S814, which reach their maximum power coefficient at lower tip speed ratios, are suitable for areas with lower average wind speeds.
- Subjects
AERODYNAMICS; WIND turbines; AEROFOILS; DRAG (Aerodynamics); CONSTRUCTION costs
- Publication
Energy Equipment & Systems, 2023, Vol 11, Issue 4, p387
- ISSN
2383-1111
- Publication type
Article