LAPSE:2023.24225
Published Article
LAPSE:2023.24225
Effect of Air-Ducted Blade Design on Horizontal Axis Wind Turbine Performance
March 27, 2023
Wind turbines without pitch control are more preferable from economical point of view but aerodynamic stall affects them more and after a critical wind speed local boundary layer separation occurs. Consequently, their power production is relatively low. In this study, air ducts added on the blade and using the airflow from them the kinetic energy of the low-momentum fluid behind the surface was increased and delay of separation of the boundary layer from the surface was examined The Response Surface Optimization method was utilized in order to get the best possible design under the constraints and targets arranged for the parameters termed the diameter, slope, number and angle of attack of the air ducts. By using computational fluid dynamics analysis, optimum parameter values were obtained and air-ducted and air-duct free blade designs were compared. An improvement in power coefficient between 3.4−4.4% depending on wind speed was achieved with the new design. Due to increase in viscous forces, more power from the rotor obtained by opening air ducts up to a critical number. However, the results showed that after the critical number of air duct addition of more duct on the blade reduced the power coefficient.
Keywords
blade design, Computational Fluid Dynamics, horizontal axis wind turbine, power coefficient, response surface optimization
Suggested Citation
Yigit C. Effect of Air-Ducted Blade Design on Horizontal Axis Wind Turbine Performance. (2023). LAPSE:2023.24225
Author Affiliations
Yigit C: Mechanical Engineering Department, Sakarya University, Sakarya 54187, Turkey [ORCID]
Journal Name
Energies
Volume
13
Issue
14
Article Number
E3618
Year
2020
Publication Date
2020-07-14
Published Version
ISSN
1996-1073
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Original Submission
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PII: en13143618, Publication Type: Journal Article
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LAPSE:2023.24225
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doi:10.3390/en13143618
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Mar 27, 2023
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