Power coefficient measurements of a novel vertical axis wind turbine

Hilewit, Doma; Matida, Edgar; Fereidooni, Amin; Ella, Hamza Abo El; Nitzsche, Fred

doi:10.1002/ese3.412

Cited by 12 publications

(7 citation statements)

References 20 publications

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“…In this case, not only vibration control could be achieved, but also the turbine power coefficient could be maximized as suggested in another publication. [19,20]…”

Section: Analysis Of Simulation Resultsmentioning

confidence: 99%

Feasibility Study on a Novel Active Control Concept for Vertical Axis Wind Turbine Blades Vibration Attenuation Involving Blade Morphing

Nitzsche,

Siami

2023

10th ECCOMAS Thematic Conference on Smart Structures and Materials

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Darrieus in 1931 patented a vertical axis wind turbine having two or more blades that follow the "troposkien" geometry, associated with a spinning rope shape, which is known to reduce the overall stress on the blades by reducing its transversal stresses. During the years following the first oil crisis in the 70's, the Darrieus received great attention from the industry. Extensive wind farms with this type of turbine were deployed However, the Darrieus design was subsequently abandoned due to unsolved problems associated with blade-vortex interactions on the blades that induced high vibration levels and, consequently, fatigue problems. In this paper, the feasibility of a novel control concept that involves blade morphing and do not demand extra actuators build with this purpose is investigated.

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“…In this case, not only vibration control could be achieved, but also the turbine power coefficient could be maximized as suggested in another publication. [19,20]…”

Section: Analysis Of Simulation Resultsmentioning

confidence: 99%

Feasibility Study on a Novel Active Control Concept for Vertical Axis Wind Turbine Blades Vibration Attenuation Involving Blade Morphing

Nitzsche,

Siami

2023

10th ECCOMAS Thematic Conference on Smart Structures and Materials

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“…Darrieus Phi rotor (troposkien shape) with 50% shifted troposkien shape-VAWT & 100% shifted troposkien shape-VAWT (Figure 8 K) (Hilewit et al, 2019) • Model A achieved a higher max power coefficient compared to model B and the conventional phi rotor.…”

Section: • Drag Device • Low Efficiencymentioning

confidence: 97%

Aerodynamic Performance of Vertical and Horizontal Axis Wind Turbines: A Comparison Review

Eftekhari

Al-Obaidi

Eftekhari

2021

Indonesian J. Sci. Technol

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The need for energy and electricity has been increasing globally, and this means more power is required from the power plants. Power plants, however, will then continue harming the earth because of the greenhouse gasses produced while generating energies that contribute to global warming. Using renewable sources to produce clean energies is one of the sustainable methods to deal with such challenges. Wind energy is one of the renewable sources, which is accessible anywhere on earth, creating green energy. Wind turbines are mainly categorized into Horizontal Axis Wind Turbines (HAWT) and Vertical Axis Wind Turbines (VAWT). This paper firstly presents a general comparison between the HAWTs and VAWTs. Then, it presents mathematical modelling for the aerodynamic factors of HAWT and Darrieus VAWT to assist the researchers to understand some key design aspects of wind turbines, such as lift/drag ratio, tip speed ratio, power coefficient, and torque coefficient. Also, this paper presents a review of the aerodynamic performance of the recent VAWT designs to help researchers to identify and choose the best model among the Savonius and Darrieus rotors for further development or designing a new model at different wind conditions. This comparison review shows that for a large scale HAWT upwind 3 bladed wind turbines are the most optimum. The helical Savonius rotors perform better by having positive torque coefficient at all azimuth angles. Moreover, helical Darrieus was found to produce lesser noise and suitable for conventional areas. hybrid Savonius-Darrieus rotors can solve the self-starting challenge of the VAWTs, and they are suitable at low wind speeds. At last, this review shows some of the recent hybrid Savonius-Darrieus rotors which would help to solve the low efficiency of Savonius rotor and self-starting challenge of Darrieus rotors.

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“…Although there are a few formulas for computing the C p value, the fundamental equation is still the same. The C p has always been the primary focus of turbine design, construction, and real-time implementation [ 25 ]. The torque coefficient ( C t ), mechanical power and torque, tip speed ratio (TSR), drag or lift coefficients, and other basic parameters are included.…”

Section: Literature Reviewmentioning

confidence: 99%

Savonius wind turbine blade design and performance evaluation using ANN-based virtual clone: A new approach

Noman¹,

Tasneem²,

Abhi³

et al. 2023

Heliyon

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Power coefficient measurements of a novel vertical axis wind turbine

Cited by 12 publications

References 20 publications

Feasibility Study on a Novel Active Control Concept for Vertical Axis Wind Turbine Blades Vibration Attenuation Involving Blade Morphing

Feasibility Study on a Novel Active Control Concept for Vertical Axis Wind Turbine Blades Vibration Attenuation Involving Blade Morphing

Aerodynamic Performance of Vertical and Horizontal Axis Wind Turbines: A Comparison Review

Savonius wind turbine blade design and performance evaluation using ANN-based virtual clone: A new approach

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