Recent Development in the Design of Wind Deflectors for Vertical Axis Wind Turbine: A Review

Rajpar, Altaf Hussain; Ali, Imran; Eladwi, Ahmad E.; Bashir, Mohamed Bashir Ali

doi:10.3390/en14165140

Cited by 33 publications

(23 citation statements)

References 84 publications

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“…This speed meets the requirements in the utilization of wind energy, namely ≥2.5 m/s [19]. There have been many studies on the utilization of wind on an atmospheric scale and show the results that this atmospheric scale wind can produce energy on a small scale [20][21][22]. Still, not many studies have been conducted on how to increase and maximize the utilization of wind energy by utilizing traffic flows.…”

Section: Introductionmentioning

confidence: 71%

An Investigation of Hybrid Renewable Energy Potential by Harnessing Traffic Flow

Pamuttu¹,

Akbar²,

Andika³

et al. 2023

IJHT

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The potential for hybrid combinations using solar and wind energy can be found in several places, one of which is on the highway. Highways are open areas exposed to direct sunlight and wind can blow forming natural wind tunnels. In addition, vehicles that pass on the road also generate wind which can then be used as an energy source. The purpose of this study is to find out how significant the potential for hybrid energy is by utilizing a combination of solar energy and wind energy obtained from utilizing traffic flow. The method used in this study is an experimental method by testing how much energy is obtained from sunlight by using a solar cell 50 Wp and wind energy by using a technological innovation Veritkal Axis Wind Turbine (VAWTs) 300 watts as a producer of electric power on the highway by utilizing two types of wind at once, namely atmospheric scale wind that blows naturally and wind from vehicle traffic on the highway. Current, voltage, and power measurements are then measured using a digital watt meter. The study's results found that the combined potential of solar energy and wind energy obtained from utilizing traffic flow was 552.11 watts, greater than just using a naturally blowing engine with a power of only 498.67 watts. This energy difference occurs due to an increase in wind frequency generated by traffic flow by 22%.

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Section: Introductionmentioning

confidence: 71%

An Investigation of Hybrid Renewable Energy Potential by Harnessing Traffic Flow

Pamuttu¹,

Akbar²,

Andika³

et al. 2023

IJHT

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“…They designed the deflector based on the NACA 001 airfoil profile. The simulations were performed using computational techniques employing the Unsteady Reynolds Averaged Navier Stokes (URANS) equations and the k-ω turbulence model as the primary analytical tools [119]. Moreover, in their 2016 study, Yang, Huang, and Yeh [120] explored a novel turbine design featuring blades with a deflectable arc shape to enhance turbine efficiency, as depicted in Figure 24.…”

Section: Wind Deflectors 421 Airfoil-shaped Wind Deflectorsmentioning

confidence: 99%

“…The Cp is the proportion of the rotor's rotational power (Pr) to the kinetic power present in the wind (Pk). Similarly, the Ct is the ratio of the rotor's effective torque to the total torque available [119].…”

Section: Wind Deflectors 421 Airfoil-shaped Wind Deflectorsmentioning

confidence: 99%

Recent Progress in Design and Performance Analysis of Vertical-Axis Wind Turbines—A Comprehensive Review

Didane,

Behery,

Al-Ghriybah

et al. 2024

Processes

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Vertical-axis wind turbines (VAWTs) are receiving more and more attention as they involve simple design, cope better with turbulence, and are insensitive to wind direction, which has a huge impact on their cost since a yaw mechanism is not needed. However, VAWTs still suffer from low conversion efficiency. As a result, tremendous efforts are being exerted to improve their efficiency, which mainly focus on two methods, regardless of whether the study is a CFD simulation, a field test, or a lab test experiment. An active approach involves modification of the rotor itself, such as the blade design, the angle, the trailing and leading edges, the inner blades, the chord thickness, the contra-rotating rotor, etc., while the second approach involves passive techniques where the flow is directed to optimally face the downwind rotor by mounting guiding vanes such as a diffuser or other shapes at the upwind position of the rotor. Among all the techniques undertaken, the counter-rotating wind turbine (CRWT) rotor technique seems to be the most effective, with an output comparable to that of horizontal-axis wind turbines (HAWTs), while the Savonius rotor has received more attention compared to other VAWT designs. Apart from technological issues, it has also been suggested that geographical issues, such as proper site siting of a wind turbine rotor at a particular location where a uniform flow can be guaranteed, are of paramount importance to ensure an effective conversion capacity of wind turbines. Thus, this study has successfully highlighted the latest improvements in augmentation methods and has established a solid foundation for future research aimed at improving the efficiency of VAWTs.

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“…Because of the increased prediction and accuracy rate of the tides, the output power of a particular tidal power plant is also highly predictable, which is an essential parameter in the cost-benefit evaluation phase. Compared to wind energy generation, the tidal stream flow highly depends upon the phases of the moon, and sun, and therefore tidal power prediction is comparatively more accurate [4]. Furthermore, the density of seawater is almost 800 times higher than the density of air, in this way the power generation by a Tidal energy converter (TEC) will be higher than the wind machine at an appropriate rated speed.…”

Section: Introductionmentioning

confidence: 99%

Tidal energy assessment with hydrodynamic modelling

Ali

Rigit²,

Yaakob³

et al. 2023

IJEECS

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<span lang="EN-US">The increasing demand for sustainable energy generation brings a need for tidal current energy resource exploration around the globe. Hydrodynamic modelling is an essential aspect to explore macro tidal sites. In the current research paper, a 2D hydrodynamic model is set up by utilizing the numerical application of Delft3D. The model is validated against the database results and the two macro tidal sites are identified along the coastline of Sarawak, Malaysia. The maximum available kinetic energy flux at the identified location is 0.6 kW/m2, during peak neap tide hours. This stands as a sound justification to have a detailed tidal energy assessment study in this area in future research.</span>

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Recent Development in the Design of Wind Deflectors for Vertical Axis Wind Turbine: A Review

Cited by 33 publications

References 84 publications

An Investigation of Hybrid Renewable Energy Potential by Harnessing Traffic Flow

An Investigation of Hybrid Renewable Energy Potential by Harnessing Traffic Flow

Recent Progress in Design and Performance Analysis of Vertical-Axis Wind Turbines—A Comprehensive Review

Tidal energy assessment with hydrodynamic modelling

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