Aerodynamic techniques to mitigate the 3D loss in the power coefficient of vertical axis wind turbines

被引:7
作者
Avalos, Gerardo Madrigal [1 ]
Hau, N. Rosado [3 ]
Quintal-Palomo, Roberto [2 ]
Lopez, E. E. Ordonez [2 ]
Gamboa-Marrufo, Mauricio [2 ]
Soberanis, M. A. Escalante [2 ]
机构
[1] Univ Autonoma Yucatan, Fac Ingn, Posgrad Energias Renovables, Ave Ind Contaminantes Perifer Norte, Yucatan 97203, Mexico
[2] Univ Autonoma Yucatan, Fac Ingn, Ave Ind Contaminantes Perifer Norte, Yucatan 97203, Mexico
[3] Univ Sheffield, The Diamond, Multidisciplinary Engn Educ, 32 Leavygrave Rd, Sheffield S3 7RD, England
关键词
REYNOLDS-NUMBER; PERFORMANCE; BLADES; SOLIDITY; CFD;
D O I
10.1016/j.enconman.2024.118507
中图分类号
O414.1 [热力学];
学科分类号
摘要
The three-dimensional tip loss effect is a critical phenomenon affecting the performance of vertical -axis wind turbines. The vortices on the blades become more complex with the turbine rotation, most notable at the tips, leading to three-dimensional aerodynamic losses and decreasing the turbine power coefficient. Therefore, mitigating the aerodynamic losses at the tips could improve the technological development of these devices. However, the numerical methods to analyze the tip vortices in VAWTs have a high computational cost, and experimental data to verify them is limited. In this study, three passive flow control techniques that mitigate the three-dimensional effects of a vertical axis wind turbine Darrieus H -type have been investigated experimentally in a wind tunnel to quantify their impact on the power coefficient and validate the theoretical results found in the literature. The tested passive flow control aerodynamic designs of the blade tips consist of leadingedge serration, anhedral, and endplate techniques. The results of this work include the experimental power coefficient curves as a function of the tip speed ratio for a two -blade VAWT model without any modification and with the three passive control techniques. The experimental process characterizes the VAWT techniques in a range of Tip Speed Ratios between 0.37 and 3.1. Our results indicate that the leading -edge serration, anhedral, and endplate techniques effectively mitigate the threedimensional losses, increasing the power coefficient by 7.1%, 14.3%, and 25%, respectively, compared to the reference model. The endplate model exhibited the best Cp improvement. However, it could cause the highest bending on the blade tips of the three tested techniques.
引用
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页数:10
相关论文
共 31 条
[1]   A comparison of wake measurements in motor-driven and flow-driven turbine experiments [J].
Araya, Daniel B. ;
Dabiri, John O. .
EXPERIMENTS IN FLUIDS, 2015, 56 (07)
[2]   Effect of blade aspect ratio on the performance of a pair of vertical axis wind turbines [J].
Azadani, Leila N. ;
Saleh, Mojtaba .
OCEAN ENGINEERING, 2022, 265
[3]   Effect of the number of blades on the dynamics of floating straight-bladed vertical axis wind turbines [J].
Cheng, Zhengshun ;
Madsen, Helge Aagaard ;
Gao, Zhen ;
Moan, Torgeir .
RENEWABLE ENERGY, 2017, 101 :1285-1298
[4]   Assessment of the dimples as passive boundary layer control technique for laminar airfoils operating at wind turbine blades root region typical Reynolds numbers [J].
D'Alessandro, Valerio ;
Clementi, Giacomo ;
Giammichele, Luca ;
Ricci, Renato .
ENERGY, 2019, 170 :102-111
[5]   Experimental study of the effects of turbine solidity, blade profile, pitch angle, surface roughness, and aspect ratio on the H-Darrieus wind turbine self-starting and overall performance [J].
Du, Longhuan ;
Ingram, Grant ;
Dominy, Robert G. .
ENERGY SCIENCE & ENGINEERING, 2019, 7 (06) :2421-2436
[6]   Response Surface Optimisation of Vertical Axis Wind Turbine at low wind speeds [J].
Elsakka, Mohamed Mohamed ;
Ingham, Derek B. ;
Ma, Lin ;
Pourkashanian, Mohamed ;
Moustafa, Gamal Hafez ;
Elhenawy, Yasser .
ENERGY REPORTS, 2022, 8 :10868-10880
[7]   Aerodynamic upgrades of a Darrieus vertical axis small wind turbine [J].
Eltayesh, Abdelgalil ;
Castellani, Francesco ;
Natili, Francesco ;
Burlando, Massimiliano ;
Khedr, Amr .
ENERGY FOR SUSTAINABLE DEVELOPMENT, 2023, 73 :126-143
[8]   Evaluation of different turbine concepts for wind power [J].
Eriksson, Sandra ;
Bernhoff, Hans ;
Leijon, Mats .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2008, 12 (05) :1419-1434
[9]   A review on the historical development of the lift-type vertical axis wind turbine: From onshore to offshore floating application [J].
Hand, Brian ;
Cashman, Andrew .
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS, 2020, 38
[10]  
IEEE Staff, 2017, 2017 INT C GREEN EN