Aerodynamic performance of a horizontal axis wind turbine with forward and backward swept blades

Kaya, Mehmet Numan; Köse, Faruk; Ingham, D.B.; Ma, Lin; Pourkashanian, Mohamed

doi:10.1016/j.jweia.2018.03.023

Cited by 67 publications

(34 citation statements)

References 16 publications

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“…[14], Turbin angin jenis HAWT dan VAWT, mempunyai kelebihan dan kekurangan yang tergantung pada kecepatan angin dan tempatnya.Turbin angin sumbu horizontal dengan bilah baling-baling adalah yang paling umum, karena efisiensinya sekitar 60%. [8],turbin angin memiliki dinamika nonlinear, kekuatan penggerak stokastik dan tidak terkendali sebagai input dalam bentuk kecepatan angin, Metode kontrol yang sesuai dapat memberikan optimisasi berkelanjutan [13] Dengan menaikkan batas kecepatan flutter yang mengontrol gerakan aileron dengan fuzzy logic. Dengan menganalisis kecepatan flutter menggunakan metode-p, maka dapat diketahui batas kecepatan flutter, dan dengan control LQG dan fuzzy logic maka fenomena flutter dapat teratasi [2], model sistem pembangkit listrik dengan sel surya untuk rumah menggunakan panel jenis polikristalin mampu bekerja maksimum pada pukul 10.00 hingga 13.00 wib pada tegangan 17,5 volt [11]…”

Section: Dalam Skala Global Berdasarkan Data Dariunclassified

Pengujian Karakteristik Turbin Angin Tipe Horizontal Sudu Flat Multiblade Dengan Pengaturan Sudut Sudu

Syafriyudin

Suyanto

Subandi

2020

JEPCA

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One effort to overcome the energy crisis is to utilize wind energy as a power source. Angina power Plant is a method for generating electrical energy by rotating the angina turbine connected with the generator, the electric energy produced by the generator is stored in an element of electric energy storage (battery). The next one will be channeled to load center like household. The Perarancangan of the horizontal type flat Multiblade Sudu is using a microcontroller that can change the angle of the sudu according to the wind speed so as to maximize the power of wind potential energy. For a sudu angle setting that can adjust the speed of the wind, use two servo motors that have been control by the Arduinouno from the input anemometer so that the angle of the sudu can adjust the wind speed. The results have shown that the turbine-angle arrangement of the turbines can increase the rotation of the wind turbine, thereby increasing the voltage raised in the generator. The optimal angle of the Sudu is at a 15o angle, at a wind speed of 9.5 m/s, resulting in a turbine round of 610 rpm.

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Section: Dalam Skala Global Berdasarkan Data Dariunclassified

Pengujian Karakteristik Turbin Angin Tipe Horizontal Sudu Flat Multiblade Dengan Pengaturan Sudut Sudu

Syafriyudin

Suyanto

Subandi

2020

JEPCA

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“…Meanwhile, it has better aerodynamic performance than the straight blade and the fore-swept blade. Kaya et al [27] investigated the aerodynamic performance of Horizontal Axis Wind Turbines (HAWTs) with forward and backward-swept blades and found that the forward-swept blades can increase the performance while the backwardswept blades tend to decrease the thrust coefficient. To model and analyze the effect of the circumferential nonuniformity on the flow field of a swept cascade, a kind of stress transport model was integrated into the throughflow model by 3D numerical simulation.…”

Section: Mathematical Problems In Engineeringmentioning

confidence: 99%

Axial‐Swept Influence on Inner Flow Performance of HP Steam Turbine Based on CFD

Feng

Guo

Wei

et al. 2019

Mathematical Problems in Engineering

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Swept blade technology was used to redesign the supercritical steam turbine sets that could improve the inner-efficiency of turbine sets and decrease the consumption of coal the noxious gas such as NOx. The eighth high-pressure stages, including static and rotor cascades, were selected as tested prototypes that were blew in the low-velocity wind tunnel. We used the five-hole ball head needle to measure the aerodynamic parameters distribution along the width and span direction of the high-pressure stage cascades. With the inkblot display technology, the limit flow spectrums were displaced in the blade surface and the endwalls. These tested data could be used to check the simulation results of CFD software. To improve the efficiency of the steam turbine high-pressure (HP) stage, we selected the supercritical steam turbine HP stage cascade blade as the prototype to research into its inner flow performance of the axial-swept blade by the CFD software. Two different redesigned blades, with ±20°, swept angle, and 30% swept height, named axial fore-swept and axial aft-swept, were built up. The stage passages flow field of the prototype blade, and the two redesigned swept blades were simulated using CFD software with stage interface planes between the stages. The CFD simulation results indicated that the leading edge of swept blades influenced the inlet flow field; the pressure in aft-swept blade stage in both endwalls was higher than in the middle and was beneficial to improve the passage flow properties of HP stage. But for the fore-swept HP stage, its pressure distribution was lower in both endwalls than in the middle and not beneficial to passage flow.

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“…Vad et al (2015) comprehensively described the characteristics of forward-swept blades. Combining straight blades and forward-swept blades can increase the efficiency of the fan by 2-3%, although for free-vortex rotors, there is little improvement in efficiency (He et al, 2018;Kaya et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Structure and Topology Analysis of Separated Vortex in Forward-Swept Blade

Liang

Zhou

et al. 2021

Front. Energy Res.

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Flow separation commonly affects the stability of turbomachines, especially under low-flowrate conditions. Compared with conventional blades, a forward-swept blade is more efficient at high flowrates. However, experiments and numerical simulations show that a forward-swept blade produces an unstable region under low flowrate. In this paper, the topological analysis is used to analyze the structure and size of flow separation in forward swept blades. Three-dimensional structure and formation mechanism of vortices in forward-swept blades are analyzed using the cross-section flow pattern method. For forward-swept blades, flow separation mainly occurs at the blade tip and corner, accompanied by clear velocity fluctuations, the break-up of shed vortices, and diffusion. With decreasing flowrate, the shedding vortices move forward and the speed of vortex annihilation gradually decreases. In addition, the number of singularities in the rotor passage increases with the decrease of flow rate, and the region affected by shedding vortex increases. The rotating direction of internal vortex in turbomachinery is fixed. The pressure surface, passage vortex, and concentrated shedding vortex were found to rotate clockwise, whereas the suction surface, corner vortex, and shedding vortex rotate in a counterclockwise direction.

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Aerodynamic performance of a horizontal axis wind turbine with forward and backward swept blades

Cited by 67 publications

References 16 publications

Pengujian Karakteristik Turbin Angin Tipe Horizontal Sudu Flat Multiblade Dengan Pengaturan Sudut Sudu

Pengujian Karakteristik Turbin Angin Tipe Horizontal Sudu Flat Multiblade Dengan Pengaturan Sudut Sudu

Axial‐Swept Influence on Inner Flow Performance of HP Steam Turbine Based on CFD

Structure and Topology Analysis of Separated Vortex in Forward-Swept Blade

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