The CFD performance analysis for horizontal axis wind turbine with different blade shapes and tower effect

Abdelrahman, M.A.; Abdellatif, Osama E.; Moawed, M.; Eliwa, Aref; Mišák, Stanislav

doi:10.1109/epe.2015.7161197

Cited by 11 publications

(11 citation statements)

References 14 publications

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“…While analyzing the distribution of wind-speed values at different measuring points on wind turbine blades, it is possible to notice that the highest wind-speed values are still registered in the center of the structure, in the axis of rotation of the rotor (Figures [9][10][11]. This fact justifies further research aimed at designing and testing wind turbine rotor bowls of other shapes and sizes.…”

Section: Discussionmentioning

confidence: 91%

Investigation of an Innovative Rotor Modification for a Small-Scale Horizontal Axis Wind Turbine

Bugała

Roszyk

2020

Energies

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This paper presents the results of the computational fluid dynamics (CFD) simulation of the airflow for a 300 W horizontal axis wind turbine, using additional structural elements which modify the original shape of the rotor in the form of multi-shaped bowls which change the airflow distribution. A three-dimensional CAD model of the tested wind turbine was presented, with three variants subjected to simulation: a basic wind turbine without the element that modifies the airflow distribution, a turbine with a plano-convex bowl, and a turbine with a centrally convex bowl, with the hyperbolic disappearance of convexity as the radius of the rotor increases. The momentary value of wind speed, recorded at measuring points located in the plane of wind turbine blades, demonstrated an increase when compared to the base model by 35% for the wind turbine with the plano-convex bowl, for the wind speed of 5 m/s, and 31.3% and 49% for the higher approaching wind speed, for the plano-convex bowl and centrally convex bowl, respectively. The centrally convex bowl seems to be more appropriate for higher approaching wind speeds. An increase in wind turbine efficiency, described by the power coefficient, for solutions with aerodynamic bowls was observed.

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Section: Discussionmentioning

confidence: 91%

Investigation of an Innovative Rotor Modification for a Small-Scale Horizontal Axis Wind Turbine

Bugała

Roszyk

2020

Energies

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“…Mahmoud et al (2012b) compared experimentally different geometries of Savonius WT to determine the optimum configuration parameters. Abdelrahman et al (2015) studied the effects of blade shape combined with existence of nacelle, shaft and tower for horizontal axis WT by 3D simulation of four blade designs. Bahei-El-Din et al (2010) investigated adding polyurethane interlayers into conventional sandwich designs in order to improve their response to impact and dynamic loads for application in WT blades.…”

Section: Blade Design and Turbine Configurationmentioning

confidence: 99%

A critical review of research trends for wind energy in Egypt: recent progress and promising opportunities

Moness

Moustafa

2019

IJETP

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Energy is a cornerstone for achieving industrial development and prosperous economy. Wind energy has the biggest share of renewable energy sector in many countries leading the way for replacing fossil fuels. Egypt, as one of the developing countries, is heading towards increasing penetration levels of wind power to face energy challenges. This strategy takes advantage of the investigated high potential of wind energy in several locations across Egypt. In order to gain most benefits and economical revenues from wind energy, a national research and development policies have to be deployed. Effective research policies enhance the capabilities of local industry for wind power technology. This review characterises current progress and categorises areas of interest for recent research of wind energy in Egypt. Accordingly, a vision for existing gaps, futuristic directions and promising areas for research is formulated.

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“…The aim of this iteration is to obtain the value of the axial induction factor (a) and tangential (a'). After obtaining a and a' values which are convergent during the process of iteration, then it can be continued to the torque calculation on each segment and blade torque [21], [27], [28]. The blade torque will multiple with the total blade, hence the power value on the rotor can figure out as well as the coefficient of performance (Cp) value.…”

Section: The Analysis Of Two Dimensions Using Blade Element Momentum mentioning

confidence: 99%

The Experimental investigation and Numerical Analysis on Horizontal Axis Wind Turbine with Winglet and Pitch Variations

Satwika¹,

Hantoro²,

Sarwono³

et al. 2019

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HAWT with three blades often used because it has the highest coefficient of performance among other turbines. The airfoil used is Clark-Y type because it has a high glide ratio (coefficient lift/coefficient drag) in the application of subsonic flow. The main purpose of this study is to increase the power coefficient value obtained by the increase of lift force on each airfoil of blade compiler and to fix the wind turbine performance. One of the variations added is the addition of winglets on the tip of the blade. The method employed is a laboratory scaled experiment by using wind tunnel. Theoretically, this study also applied blade element momentum (BEM) as the calculation of each segment on the airfoil, and the simulation was carried out with computational fluid dynamics (CFD), in order to find out the characteristics of flow passing by the rotor. The advantage of using winglets is, fostering the condition of starting wind turbine rotor on low tip speed ratio (TSR) condition by varying the pitch angle on the blade. The addition of pitch variation gives an advantage that it can maximize the wind speed towards the angle of attack to the airfoil; hence, it increases the aerodynamic effect on the rotor.

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The CFD performance analysis for horizontal axis wind turbine with different blade shapes and tower effect

Cited by 11 publications

References 14 publications

Investigation of an Innovative Rotor Modification for a Small-Scale Horizontal Axis Wind Turbine

Investigation of an Innovative Rotor Modification for a Small-Scale Horizontal Axis Wind Turbine

A critical review of research trends for wind energy in Egypt: recent progress and promising opportunities

The Experimental investigation and Numerical Analysis on Horizontal Axis Wind Turbine with Winglet and Pitch Variations

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