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Han Yang, Jin Chen and Xiaoping Pang
In recent years, sites with low annual average wind speeds have begun to be considered for the development of new wind farms. The majority of design methods for a wind turbine operating at low wind speed is to increase the blade length or hub height comp...
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Budi Sugiharto,Sudjito Soeparman,Denny Widhiyanuriyawan,Slamet Wahyudi,ING Wardana
Pág. 55 - 61
Simple design Savonius vertical-axis wind turbine can generate energy at low wind speed from any direction. However, its large static torque has a low power factor. Therefore, an innovation was made by providing 16 guide vanes around the shaft outside th...
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Tolulope Babawarun, Wei Hua Ho, Harry Ngwangwa
Wind turbine blades are the first mechanical part of a wind turbine that interacts with the wind and hence play a key role in wind power generation. It is important that the wind turbine blade is tested for structural integrity in accordance to design co...
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Yingjie Chen, Le Cai, Dengyu Jiang, Yiyi Li and Songtao Wang
Experimental and numerical studies of a linear high-loaded turbine cascade with a dual-cavity tip structure are presented in this paper. The experimental conditions contained an increase in the outlet Mach number from 0.42 to 0.92, a change in the incide...
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Hamid R. Kaviani and Mohammad Moshfeghi
Blade optimization methods are crucial for wind turbine design. In this research, a new set of values for the parameters of the Particle Swarm Optimization (PSO) method is proposed, and its effects on the enhancement of the power generation of the NREL W...
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Li Zou, Haowen Cheng and Qianhui Sun
Wind turbine blades are readily damaged by the workplace environment and frequently experience flaws such as surface peeling and cracking. To address the problems of cumbersome operation, high cost, and harsh application conditions with traditional damag...
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Joong-Hoon Yoon, Jang-Ho Lee and Sang-Il Lee
In this study, temperature distribution as a function of the spar-cap thickness was numerically analyzed using a 20 kW wind carbon blade model. ?Realizable k-e?, which was adopted as a turbulence model for heat transfer analysis, was effective in convect...
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Jian Song, Junying Chen, Yufei Wu and Lixiao Li
With the increase in wind turbine power, the size of the blades is significantly increasing to over 100 m. It is becoming more and more important to optimize the design for the internal layout of large-scale offshore composite wind turbine blades to meet...
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Nu Rhahida Arini, Gilang Muhammad, Joke Pratilastiarso, Setyo Nugroho
Pág. 311 - 319
The depletion of fossil fuels and the worsening environment motivate engineers and researchers to explore renewable energy resources. One of the promising renewable energy is wind energy. The wind turbine extracts wind energy to generate electricity. Thi...
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Luis Antonio Gallo Jaramillo, Edwin Lenin Chica Arrieta, Elkin Gregorio Flórez Serrano
Pág. e18127
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Li Zou and Haowen Cheng
Wind turbine blades are easily affected by the working environment and often show damage features such as cracks and surface shedding. An improved convolution neural network, ED Net, is proposed to identify their damage features. An EAC block based on th...
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Jiahuan Lin, Huawei Duan, Baoming Xu, Yangwei Wang and Jun Zhang
The Froude-scaled offshore floating wind turbine model is inevitably affected by the Reynolds number effect, making the model unable to correctly reproduce the thrust performance of the reference wind turbine (RWT). To solve this problem, an Xfoil-Airfoi...
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Yichen Jiang, Chenlu He, Peidong Zhao and Tiezhi Sun
Vertical axis wind turbine (VAWT) is a competitive power generation device due to structural simplicity, wind direction independence, no yaw mechanism required, easier maintenance, and lower noise emission. However, blade tip vortex will be generated at ...
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J. Clarke, A. McIlhagger, E. Archer, T. Dooher, T. Flanagan and P. Schubel
A problem for wind turbine operators is decreasing prices for wind-generated electricity. Many turbines are approaching their rated 20-year lives. A more economically viable and sustainable solution that reduces Levelized Cost of Energy (LCOE) and avoids...
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Kwangtae Ha
The importance of a reliable blade root connection has grown due to the higher-gravity-induced edgewise loads on the blade root that resulted from the recent increased size and weight of a wind turbine rotor blade. To avoid the loosening of a bolt joint ...
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Wei Zhong, Tong Guang Wang, Wei Jun Zhu and Wen Zhong Shen
The Actuator Disc/Navier-Stokes (AD/NS) method has played a significant role in wind farm simulations. It is based on the assumption that the flow is azimuthally uniform in the rotor plane, and thus, requires a tip loss correction to take into account th...
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Rodolfo Bontempo and Marcello Manna
This paper investigates the impact of the standard approximations embodied in the well-known Momentum Theory on its performance prediction capabilities. To this aim, the results of the momentum theory, which is still widely used in all Blade Element/Mome...
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Qian Cheng, Xiaolan Liu, Ho Seong Ji, Kyung Chun Kim and Bo Yang
Vertical axis wind turbines (VAWTs) are gradually receiving more and more interest due to their lower sensitivity to the yawed wind direction. Compared with straight blades VAWT, blades with a certain helicity show a better aerodynamic performance and le...
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Mohammadreza Mohammadi,Alireza Mohammadi,Said Farahat Views: 1172 | 1
Pág. 1 - 8
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Morgan Rossander, Eduard Dyachuk, Senad Apelfröjd, Kristian Trolin, Anders Goude, Hans Bernhoff and Sandra Eriksson
Unique blade force measurements on an open site straight-bladed vertical axis wind turbine have been performed. This paper presents a method for measuring the tangential and normal forces on a 12-kW vertical axis wind turbine prototype with a three-blade...
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