Experimental characterizations of hybrid natural fiber-reinforced composite for wind turbine blades

Miliket, Temesgen Abriham; Ageze, Mesfin Belayneh; Tigabu, Muluken Temesgen; Zeleke, Migbar Assefa

doi:10.1016/j.heliyon.2022.e09092

Cited by 29 publications

(8 citation statements)

References 45 publications

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“…The main problems related to these materials are their availability, biodegradability, risk to human health and the high cost of their production. For this reason, research is being conducted on the possibility of replacing these materials with natural fibers [17,18]. The development of fabrics based on natural fibers for the production of composites is a new technology that can solve the challenge of balanced mechanical properties of composites.…”

Section: Wind Turbine Bladesmentioning

confidence: 99%

Wind Turbine Technology Trends

et al. 2022

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The rise in prices of traditional energy sources, the high dependence of many countries on their import, and the associated need for security of supply have led to large investments in new capacity of wind power plants. Although wind power generation is a mature technology and levelized cost of electricity low, there is still room for its improvement. A review of available literature has indicated that wind turbine development in the coming decade will be based on upscaling wind turbines and minor design improvements. These include further improvements in rotor blade aerodynamics, active control of the rotor blade rotation system, and aerodynamic brakes that will lead to increased power generation efficiency. Improvements in system maintenance and early diagnosis of transmission and power-related faults and blade surface damage will reduce wind turbine downtime and increase system reliability and availability. The manufacture of wind turbines with larger dimensions presents problems of transportation and assembly, which are being addressed by manufacturing the blades from segments. Numerical analysis is increasingly being used both in wind turbine efficiency analysis and in stress and vibration analysis. Direct drive is becoming more competitive with traditional power transmission through a gearbox. The trend in offshore wind farms is to increase the size of wind turbines and to place them farther from the coast and in deeper water, which requires new forms of floating foundations. Due to the different work requirements and more difficult conditions of the marine environment, optimization methods for the construction of offshore substructures are currently being developed. There are plans to use 66-kV cables for power transmission from offshore wind farms instead of the current 33-kV cables. Offshore wind farms can play an important role in the transition to a hydrogen economy. In this context, significant capacity is planned for the production of “green” hydrogen by electrolysis from water. First-generation wind turbines are nearing the end of their service life, so strategies are being developed to repower them, extend their life or dismantle and recycle them.

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Section: Wind Turbine Bladesmentioning

confidence: 99%

Wind Turbine Technology Trends

et al. 2022

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“…Analysis of variance (ANOVA) is a well accepted tool to study the effect of an individual independent variable on the output variables and is applied to different studies on wind turbines [24][25][26]. ANOVA test is used to study the effect of variations in the root dimensions (three independent variables) on the blade mass, stresses in the blade main body, stresses in the blade root, deformation and strain (five dependent variables).…”

Section: Calculation Of the Influencing Parametersmentioning

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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“…Humanity has always grappled with the critical issue of harnessing natural forces as inexhaustible sources of energy, such as water or wind. Presently, there is a particular focus on harnessing wind power, leading to continuous advancements in wind turbine technology, with blades constructed from composite materials reinforced with fiberglass [1][2][3]. While fiberglass is known for its high strength properties, for the production of higher power wind turbine blades, using it as the sole reinforcing component to the matrix material (even if the materials are unsaturated polyester or epoxy resin) is not deemed sufficient due to its lack of required elastic modulus values [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies for the Creation of Composite Materials with Increased Static Mechanical Characteristics

Antypas,

Savostina

2024

Mater. Plast.

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The aim of the study was to experimentally verify the enhancement of certain mechanical properties of a composite material consisting of unsaturated polyester matrix reinforced with fiberglass, by incorporating specific proportions of sodium aluminosilicate (SAS) powders and talc as fillers for the fabrication of large wind turbine blades. Samples composed of these materials, with varying combinations of the added components, underwent testing for tensile and bending strength, and experiments were conducted to determine their modulus of elasticity. The findings indicate that the inclusion of SAS in the matrix material resulted in increased values of tensile strength and modulus of elasticity up to certain proportions. Solely adding talc to the matrix material led to a rise in bending strength. Increasing the talc percentage in the matrix material reinforced with 20% fiberglass resulted in decreased tensile strength and elastic modulus of the samples, while incorporating a blend of SAS and talc into the matrix material reinforced with 20% fiberglass significantly boosted the elastic modulus and tensile strength of the samples under tensile conditions.

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Experimental characterizations of hybrid natural fiber-reinforced composite for wind turbine blades

Cited by 29 publications

References 45 publications

Wind Turbine Technology Trends

Wind Turbine Technology Trends

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

Experimental Studies for the Creation of Composite Materials with Increased Static Mechanical Characteristics

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