Numerical study of effect of pitch angle on performance characteristics of a HAWT

Sudhamshu, A R; Pandey, Manik Chandra; Sunil, Nivedh; Satish, N S; Mugundhan, Vivek; Velamati, Ratna Kishore

doi:10.1016/j.jestch.2015.09.010

Cited by 23 publications

(6 citation statements)

References 9 publications

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“…At a high Reynolds number, the flow is turbulent across the blades. Steady Reynolds averaged continuity and momentum equations are solved at given flow conditions (Sudhamshu et al, 2016).…”

Section: Background and Governing Equationsmentioning

confidence: 99%

“…The twist angle β is the chord line's sectional twist angle concerning the plane of rotation. From the reference (Sudhamshu et al, 2016), for dynamic blade control, it is again helpful to use an additional twist angle called the global pitch angle ' , which changes the twist of every cross-section by '…”

Section: Background and Governing Equationsmentioning

confidence: 99%

“…In tropical climates with reasonably constant wind speed, wind energy has very significant potential. A summary of various numerical studies performed in the past shows that micro-siting, modeling and estimation, rotor and turbine optimization, modeling in terms of blade and flow, and structural analysis are the highest priority fields of study (Sudhamshu et al, 2016). Figure 1 shows the wind turbine classification between the horizontal axis (HAWT) and the vertical axis (VAWT) wind turbine.…”

Section: Introductionmentioning

confidence: 99%

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Performance of a HAWT Rotor with a Modified Blade Configuration

Khan¹,

Singh²,

Sultan³

et al. 2021

JST

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As the world focuses more on clean and green Earth, wind energy plays a significant role. Wind energy is a renewable source of energy that can cope with the ongoing global fossil fuel crisis. The wind energy converters like wind turbines have been studied a lot in terms of design and performance. The current work includes analyzing the output effects of a horizontal axis wind turbine (HAWT) with a modified blade configuration at specific wind speeds. A numerical investigation is carried out using two different numerical software on the chosen airfoil used in blade design validated with the analysis carried out in open-loop wind tunnels. The study is divided into two phases: first, the selected airfoil is tested experimentally and using CFD, and then the findings are compared to those of the University of Illinois Urbana Champaign wind tunnel tests at low Reynolds numbers. The second phase includes the numerical analysis based on the blade element momentum method and non-linear lifting line simulations of modified blade design at high Reynolds number. The numerical results of rotor performance analysis have been compared to existing experimental results. The findings of all numerical investigations agree with those of the experiments. An optimal value of the power coefficient is obtained at a particular tip speed ratio close to the desired value for large wind turbines. For maximum power, this study investigates the optimum pitch angle. The work demonstrated the improved HAWT rotor blade design to produce better aerodynamic lift and thus improve performance.

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“…At a high Reynolds number, the flow is turbulent across the blades. Steady Reynolds averaged continuity and momentum equations are solved at given flow conditions (Sudhamshu et al, 2016).…”

Section: Background and Governing Equationsmentioning

confidence: 99%

Section: Background and Governing Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance of a HAWT Rotor with a Modified Blade Configuration

Khan¹,

Singh²,

Sultan³

et al. 2021

JST

View full text Add to dashboard Cite

show abstract

“…The blade numbers and the blade pitch angles were varied to obtain the maximum Cp and the maximum exhaust air recovery. The reason underlying the variation of the blades number and the blade pitch angles is because the addition of blades number can increase the torque and mechanical power followed by decreasing the value of cut-in speed and increasing starting torque from axial-flow wind turbine, while the change of blade pitch angle will affect the magnitude of drag and lift force generated by the blade so that the greater blade pitch angle, the lower resulting lift force, but the drag force will be even bigger [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Axial Flow Wind Turbine Integrated with The Condenser

Santoso

Tjahjana

Widodo

2020

ARFMTS

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This study investigated the application of an axial flow wind turbine integrated with a condenser. The exhaust air from condenser was used to drive the wind turbine by a ducted turbine system. There were two parameters varied in this work: the blade number and the blade pitch angle. The blade number used was two blades, five blades, and ten blades, while the blade pitch angles were 5°, 10°, 15°, 20°, 30°, and 45°. The diameter of the wind turbine was 495 mm. The model of the condenser had a fan diameter of 600 mm and the range of the average air velocity of 2.01 m/s - 7.86 m/s. The maximum mechanical power was 10.72 W for air velocity of 7.86 m/s. The maximum power coefficient recorded was 0.38 for the tip speed ratio of 1.3 on the blade number of five blades and a pitch angle of 10°. The maximum exhaust air energy recovery was 13.64% of the power consumption of the condenser fan.

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“…These controlling techniques can be investigated in detail by mean of computational fluid dynamics (CFD). Sudhamshu et al [2] carried out CFD (steady RANS) simulations of the NREL Phase VI wind turbine, modelling only one blade and changing both the incoming constant wind speed and the blade pitch angle. Li et al [3] adopted an overset technique to simulate the aerodynamics of a wind turbine and investigate the effect of various wind speeds and pitch angles on the transient response of the machine.…”

Section: Introductionmentioning

confidence: 99%