Design and Static Structural Analysis of a 2.5 kW Combined Darrieus-Savonius Wind Turbine

Ferroudji, Fateh; Khelifi, Cherif; Meguellati, Farouk; Koussa, Khaled

doi:10.4028/www.scientific.net/jera.30.94

Cited by 14 publications

(5 citation statements)

References 8 publications

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“…The efficiency of the Darrieus turbine can reach the maximum limit of vertical-axis turbine, but has problems at start-up; the efficiency of the Savonius turbine was lower than of the Darrieus turbine, but the torque at start-up was great enough [108]. The Savonius turbine can be combined with the Darrieus turbine to provide start-up torque at a low speed, and the combined turbine can generate a larger lift force after starting [109,110]. The combined optimization was derived from a wind turbine.…”

Section: Coupling With Savonius Turbinesmentioning

confidence: 99%

A Review: Design and Optimization Approaches of the Darrieus Water Turbine

Tan

et al. 2023

Sustainability

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As the use of Darrieus turbines in water is becoming increasingly popular in the field of renewable energy, it is essential to explore and evaluate existing research efforts. The situation of the Darrieus water turbine in water still requires further discussion. This paper aims to provide a comprehensive review of optimization methods for Darrieus water turbines, addressing the challenges associated with their efficiency, start-up, and stability. This work summarizes and evaluates the findings of previous studies, focusing on the features of experimental and numerical methods. Influence of geometric parameters, including height-diameter ratio, solidity, torsional angle, and airfoil are also talked into. The existing research adopts solidity values ranging from 0.1 to 0.4, but the design experience is not as extensive as that of the Darrieus wind turbine. Further discussions are still needed on the optimal power coefficient and tip speed ratio of the Darrieus water turbine. The research with a power coefficient ranging from about zero to above the Betz limit needs further summarization. Various optimization strategies, such as multi-turbine arrangement, coupling with Savonius turbines, and blade pitching, are also discussed. By offering insights into the current state of optimization works for Darrieus water turbines, this review aims to facilitate future research, bridge existing gaps in the field, further enrich the utilization of ocean currents, and improve the structure of renewable energy.

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Section: Coupling With Savonius Turbinesmentioning

confidence: 99%

A Review: Design and Optimization Approaches of the Darrieus Water Turbine

Tan

et al. 2023

Sustainability

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“…Wind energy is clean and fast enough to meet the viable energy needs of the global community [2][3][4][5]. Wind energy sources in Indonesia are abundant, with an estimated capacity to produce 61 GW of electricity, however, this potential has not been fully utilized.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of the Effect of Wind Speed and Material Type on the Mechanical Properties of Vertical Axis Wind Turbine Blades

Rajasa Wido Mahendra,

Samsudin Anis,

Deni Fajar Fitriyana

et al. 2023

CFDL

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Wind energy is a clean and fast-growing renewable energy source that can be harnessed using wind turbines. In a Vertical Axis Wind Turbine (VAWT), turbine blades are a crucial factor, and their fiasco leads to wind turbine failure. However, references to VAWT blade structural analysis are very limited. Therefore, the study was carried out to determine the material with the lowest degree of deformation without structural failure. The finding could be used as a recommendation in the material selection of Savonius type vertical axis wind turbine blades. The study used materials such as aluminum, stainless steel, and fiberglass. The analysis was carried out by simulating using ANSYS software. Computational Fluid Dynamics (CFD) was used for determining the loading by providing speed variations at 3 m/s, 4 m/s, 5 m/s, and 6 m/s. The Finite Element Analysis (FEA) method was applied to analyze the structure, which shows the results of total deformation, equivalent stress, and safety factor. The total deformation results from the aluminum blades showed values of 109.55 mm, 190.73 mm, 299.25 mm, and 425.39 mm. The safety factor values of 4.4049, 2.5166, 1.5647, and 1.1348 revealed that it was also technically safe. Aluminum material can be recommended to be used in the manufacture of Savonius type vertical axis wind turbine blades because of its low price, lightweight, corrosion resistance, and sufficient durability, as revealed from the results of total deformation and safety factor values.

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“…Wind turbines are continuously subjected to varying dynamic (wind, sand, temperature variations, etc.) and gravitational loads [7]. As a result of these loads the wind turbine undergoes deformations and rigid body motions.…”

Section: Introductionmentioning

confidence: 99%

Numerical modal analysis of a 850 KW wind turbine steel tower

Ferroudji

2021

IRASE

Self Cite

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The study deals with the numerical analysis aspects that are necessary for identifying of modal parameters of the tower structure as the most important part of the horizontal axis wind turbine, which are basic for the dynamic response analysis. In the present study, the modal behavior of an actual 55-m-high steel tower of 850 KW wind turbine (GAMESA G52/850 model) is investigated by using three-dimensional (3D) Finite Element (FE) method. The model was used to identify natural frequencies, their corresponding mode shapes and mass participation ratios, and the suggestions to avoid resonance for tower structure under the action wind. The results indicate that there is a very good agreement with the fundamental vibration theory of Euler-Bernoulli beam with lamped masse in bending vibration modes. When the rotor of the wind turbine runs at the speed of less than or equal to 25.9 rpm it will not have resonant problems (stiff–stiff tower design). Furthermore, in case the rotor runs at the speed of between 25.9 and 30.8 rpm, the adequate controller is necessary in order to avoid the corresponding resonant susceptible area of the tower structure (soft–stiff tower design).

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Design and Static Structural Analysis of a 2.5 kW Combined Darrieus-Savonius Wind Turbine

Cited by 14 publications

References 8 publications

A Review: Design and Optimization Approaches of the Darrieus Water Turbine

A Review: Design and Optimization Approaches of the Darrieus Water Turbine

Simulation Study of the Effect of Wind Speed and Material Type on the Mechanical Properties of Vertical Axis Wind Turbine Blades

Numerical modal analysis of a 850 KW wind turbine steel tower

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