Blade design and performance testing of a small wind turbine rotor for low wind speed applications

Singh, Ronit K.; Ahmed, M. Rafiuddin

doi:10.1016/j.renene.2012.08.021

Cited by 162 publications

(107 citation statements)

References 15 publications

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“…It was found that the turbine performed best at 181 pitch angle [28]. The chord distribution of the blades resulted in the outer portion to have higher solidity compared to the baseline blades to have a fast start up and low cut-in wind speed.…”

Section: Effect Of Pitch Angle On Starting Performancementioning

confidence: 99%

“…A 2-bladed rotor was designed to work with the Air-X wind turbine to operate in low wind speed ranges of 3-6 m/s which consists of AF300 flat back airfoil, specially designed to avoid laminar separation bubbles to achieve high lift at low Reynolds numbers and provide structural stability to the blades, thus improve the overall performance of the turbine [28]. The taper and twist were incorporated to the low Re AF300 airfoil section based on BEM theory Eqs.…”

Section: Effect Of Chord and Twist Distribution On Performance Of Swtmentioning

confidence: 99%

“…(b) Average power coefficient of the turbine as a function of wind velocity at various pitch settings[28].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Review of aerodynamic developments on small horizontal axis wind turbine blade

Karthikeyan¹,

Murugavel²,

Kumar³

et al. 2015

Renewable and Sustainable Energy Reviews

105

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Section: Effect Of Pitch Angle On Starting Performancementioning

confidence: 99%

Section: Effect Of Chord and Twist Distribution On Performance Of Swtmentioning

confidence: 99%

See 1 more Smart Citation

Review of aerodynamic developments on small horizontal axis wind turbine blade

Karthikeyan¹,

Murugavel²,

Kumar³

et al. 2015

Renewable and Sustainable Energy Reviews

105

View full text Add to dashboard Cite

“…For better performance of wind turbines over a wide range of wind speed, the cut-in-speed of the wind turbines should be reduced through proper designing of blades. A specially designed airfoil which was able to reduce the cut-in speed when tested in low wind speed applications has been presented by Singh et al [178]. An increased taper and twist to the airfoil cross-section was able to increase the coefficient power in addition to decreasing the cut-in speed.…”

Section: Cut-in-speed Reduction Techniquesmentioning

confidence: 99%

Horizontal Axis Wind Turbine Blade Design Methodologies for Efficiency Enhancement—A Review

et al. 2018

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Among renewable sources of energy, wind is the most widely used resource due to its commercial acceptance, low cost and ease of operation and maintenance, relatively much less time for its realization from concept till operation, creation of new jobs, and least adverse effect on the environment. The fast technological development in the wind industry and availability of multi megawatt sized horizontal axis wind turbines has further led the promotion of wind power utilization globally. It is a well-known fact that the wind speed increases with height and hence the energy output. However, one cannot go above a certain height due to structural and other issues. Hence other attempts need to be made to increase the efficiency of the wind turbines, maintaining the hub heights to acceptable and controllable limits. The efficiency of the wind turbines or the energy output can be increased by reducing the cut-in-speed and/or the rated-speed by modifying and redesigning the blades. The problem is tackled by identifying the optimization parameters such as annual energy yield, power coefficient, energy cost, blade mass, and blade design constraints such as physical, geometric, and aerodynamic. The present paper provides an overview of the commonly used models, techniques, tools and experimental approaches applied to increase the efficiency of the wind turbines. In the present review work, particular emphasis is made on approaches used to design wind turbine blades both experimental and numerical, methodologies used to study the performance of wind turbines both experimentally and analytically, active and passive techniques used to enhance the power output from wind turbines, reduction in cut-in-speed for improved wind turbine performance, and lastly the research and development work related to new and efficient materials for the wind turbines.

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“…This is due to the ability of the wind generators to supply power at lower wind speeds (e.g., 2 m/s) compared to the conventional models of wind generators (e.g., wind speeds at 3-6 m/s) [27,29]. Currently, the existing deployment of the new generation small wind turbines can be found in remote locations like the Middle East and Africa [27].…”

Section: Renewable Energy Solutionsmentioning

confidence: 99%

Sustainable Power Supply Solutions for Off-Grid Base Stations

2015

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Abstract:The telecommunication sector plays a significant role in shaping the global economy and the way people share information and knowledge. At present, the telecommunication sector is liable for its energy consumption and the amount of emissions it emits in the environment. In the context of off-grid telecommunication applications, offgrid base stations (BSs) are commonly used due to their ability to provide radio coverage over a wide geographic area. However, in the past, the off-grid BSs usually relied on emission-intensive power supply solutions such as diesel generators. In this review paper, various types of solutions (including, in particular, the sustainable solutions) for powering BSs are discussed. The key aspects in designing an ideal power supply solution are reviewed, and these mainly include the pre-feasibility study and the thermal management of BSs, which comprise heating and cooling of the BS shelter/cabinets and BS electronic equipment and power supply components. The sizing and optimization approaches used to design the BSs' power supply systems as well as the operational and control strategies adopted to manage the power supply systems are also reviewed in this paper.

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Blade design and performance testing of a small wind turbine rotor for low wind speed applications

Cited by 162 publications

References 15 publications

Review of aerodynamic developments on small horizontal axis wind turbine blade

Review of aerodynamic developments on small horizontal axis wind turbine blade

Horizontal Axis Wind Turbine Blade Design Methodologies for Efficiency Enhancement—A Review

Sustainable Power Supply Solutions for Off-Grid Base Stations

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