Improvement of a Flanged Diffuser Augmented Wind Turbine Performance by Modifying the Rotor Blade Aerodynamic Design

Al-quraishi, Balasem Abdulameer Jabbar; Mohd, Saidatulakmal; Nwehil, Aghssan Mohammed; Asmuin, Norzelawati; Nemah, Mohammed Najeh; Hachim, Dhafer Manea; Balla, Hyder H.; Meri, Salih; Hidayat, Mohammad Noor

doi:10.37934/arfmts.72.1.124137

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“…Al-Quraishi et al, [28] presented a small scale of flanged diffuser wind turbine with flange angle of 0°. The rotor was designed based on a modified blade element momentum theory, which adopts on developing the preliminary rotor blade geometry in terms of pitch angle.…”

Section: Introductionmentioning

confidence: 99%

Design Optimization of Diffuser Augmented Wind Turbine

Elsayed

2021

CFDL

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The wind turbine power decreases at low wind speed. A flanged diffuser plays a role of a device for collecting and accelerating the approaching wind, and thus the optimization of the diffuser shape presents an important way to enhance the wind turbine power. In this work, a numerical parametric study was conducted on the diffuser to obtain the initial optimum form of flanged diffuser. Then, the Simplex algorithm is used to obtain the optimal diffuser shape starting from the obtained initial shape. Finally, the obtained optimum diffuser shape is used with conventional wind turbine blade. The diffuser shape is defined by four variables: open angle, flange height, centerbody length, and flange angle. The numerical simulation of flanged diffuser is carried out using the “CFDRC package. The results indicated that, the optimum diffuser shape can be obtained using simplex algorithm which maximizes the entrance average velocity to reach 1.77 times wind speed. The power augmented by a factor about 2.76:5.26 of a selected small wind turbine using the obtained diffuser shape compared to that without diffuser.

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Section: Introductionmentioning

confidence: 99%

Design Optimization of Diffuser Augmented Wind Turbine

Elsayed

2021

CFDL

View full text Add to dashboard Cite

show abstract

Improvement of a Flanged Diffuser Augmented Wind Turbine Performance by Modifying the Rotor Blade Aerodynamic Design

Cited by 1 publication

References 0 publications

Design Optimization of Diffuser Augmented Wind Turbine

Design Optimization of Diffuser Augmented Wind Turbine

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