Structural Design, Analysis, and Testing of a 10 kW Fabric-Covered Wind Turbine Blade

Choi, Dong-Guk; Pyeon, Bong-Do; Lee, Soo-Yong; Lee, Hak-Gu; Bae, Jong‐Sup

doi:10.3390/en13123276

Cited by 5 publications

(6 citation statements)

References 18 publications

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“…Because of its fabric elasticity, the SC model adapts to surrounding flow and exhibits a different airfoil shape due to surface pressure, resulting in larger coefficients. Theoretical analyses of this phenomenon (i.e., change of lift and drag due to surface deformation) qualitatively supporting the findings presented in this paper are reported in references [2], [3], [4], and [5].…”

Section: Comparison Between Hc and Sc Modelssupporting

confidence: 90%

“…Model analyses of this kind qualitatively supporting these findings (i.e., change of lift and drag due to deformation of surface) presented in this paper has also been reported in Refs. [2], [3], [4] and [5].…”

Section: Lift-to-drag Ratiomentioning

confidence: 99%

“…Recent research focuses on similar concepts. Notably, investigations in this domain encompass advancements by entities such as reported in references [2], [3], [4] and [5]. These papers investigated fabric-covered wind turbine blades, aimed at diminishing both weight and IOP Publishing doi:10.1088/1742-6596/2767/7/072020 2 manufacturing expenditures.…”

Section: Introductionmentioning

confidence: 99%

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Design, Analysis, and Wind Tunnel Evaluation of Novel Fabric-Covered Rotor Blades in Wind Energy Generation

Jelili,

Beyer,

Ritschel

2024

J. Phys.: Conf. Ser.

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This paper investigates the performance of a novel fabric-covered rotor blade. The study aims to address the need for cost-effective wind turbine blades by exploring the potential of textile-based materials. The research includes a comprehensive wind tunnel experiment to evaluate the aerodynamic response of the fabric-covered blade, compared to a traditional hard-shell blade. The experimental data are systematically processed and corrected for wind tunnel effects, providing valuable insights into the aerodynamic behavior of the novel blade. The results show that the fabric-covered blade, constructed from PTFE-coated fiberglass fabric, exhibits promising aerodynamic characteristics, with potential applications in reducing manufacturing expenses and enhancing power generation. The study concludes by proposing a novel control strategy leveraging the natural deformation of blades at high wind speeds, suggesting potential applications in limiting power output at high wind speeds. Overall, these findings contribute to the ongoing efforts in developing innovative and cost-efficient solutions for wind energy generation.

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Section: Comparison Between Hc and Sc Modelssupporting

confidence: 90%

Section: Lift-to-drag Ratiomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design, Analysis, and Wind Tunnel Evaluation of Novel Fabric-Covered Rotor Blades in Wind Energy Generation

Jelili,

Beyer,

Ritschel

2024

J. Phys.: Conf. Ser.

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“…The research on small wind turbine blades is mainly focused on the development of new airfoils and the determination of the aerodynamic performance of the wind turbine blade and/or rotors [15][16][17][18]. Based on a literature search, it was observed that only a few researchers have attempted the task of static and fatigue strength design of small wind turbine blades [19][20][21][22]. Specifically, the design of airfoil chord length and thickness based on the aerodynamic and strength performance is studied by a few researchers.…”

Section: Introductionmentioning

confidence: 99%

Effects of Blade Root Dimensions on Physical and Mechanical Characteristics of a Small Wind Turbine Blade

2022

IJRER

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Small wind turbines have the potential to act as a complementary clean energy source to solar PV, especially during nighttime. However, the generally less attractive payback of small scale wind turbines has restrained its widespread application, and one way to improve their cost effectiveness is by improving the efficiency, for which blade design is a crucial factor. The blade design is a complex but interesting process and still demands continuous research at various stages. This research paper presents the effect of flat rectangular root dimensions on blade mass, stresses, strain and deformation for a fixed pitch, horizontal axis small wind turbine blade of 2.5 m length. For the three considered variables root length, width and thickness, four levels of dimensions are selected for each which yields 64 blade models. A total of 16 blade models with different root dimensions are finalized through the Taguchi method and investigated using finite element analysis. The effects of these variables on five characteristics, namely: blade mass, stresses in the blade main body, stresses in the blade root and connecting portion, deformation and strain are studied. Analysis of variance is carried out for all these independent and dependent variables. The results indicate that the thickness, length and width are the most, intermediate and least influencing variables respectively, and cause significant changes in these five characteristics of the blade.

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“…A wind turbine blade made of fabric-based material can reduce the blade weight. To verify structural capability, Choi et al [7] developed a 10 kW wind turbine with small fabric-covered turbine blades. They designed the cross section of turbine blades by using Variational Asymptotic Beam Sectional analysis (VABS), then they implemented structural analysis.…”

Section: Introductionmentioning

confidence: 99%

Structural Design and Stress Analysis of a Helical Vertical Axis Wind Turbine Blade

Öğüçlü

2020

Sakarya University Journal of Science

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In this study, a Computational Fluid Dynamics (CFD) model is designed to investigate the structural analysis of a helical Vertical Axis Wind Turbine (VAWT) blade which is using National Advisory Committee for Aeronautics (NACA) 0018 airfoil and numerical calculations are conducted by using Comsol Multiphysics. The main objective of this study is to determine that the strength of the turbine blade against bending caused by increased wind speeds is sufficient for the selected turbine blade material. This paper presents also an investigation of the effects of different wind speeds on the structure of a helical VAWT blade that is fixed to the support arm which is attached to the VAWT's main shaft. In this study, a turbine blade which is placed in an air flow field is subjected to approaching strong wind with different velocities. The model solves for the flow around the blade and the structural displacement due to the fluid load. This investigation consists of two main parts: Solving for the fluid flow around the turbine blade with a free stream velocities of 1, 3, 5, 7, and 9 m/s, and Studying the deformation of the turbine blade caused by the fluid load. The risk of failure according to the von Mises criterion for the ductile materials such as aluminum is also investigated.

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Structural Design, Analysis, and Testing of a 10 kW Fabric-Covered Wind Turbine Blade

Cited by 5 publications

References 18 publications

Design, Analysis, and Wind Tunnel Evaluation of Novel Fabric-Covered Rotor Blades in Wind Energy Generation

Design, Analysis, and Wind Tunnel Evaluation of Novel Fabric-Covered Rotor Blades in Wind Energy Generation

Effects of Blade Root Dimensions on Physical and Mechanical Characteristics of a Small Wind Turbine Blade

Structural Design and Stress Analysis of a Helical Vertical Axis Wind Turbine Blade

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