Investigation of The Effect of Phase Angle on The Aerodynamic Performance of Three-Bladed Helical Savonius Wind Turbines Using Computational Fluid Dynamics Method

Mernuş Gül; Muhammed Safa Kamer; Erdem Alıç

Makale detayları

Investigation of The Effect of Phase Angle on The Aerodynamic Performance of Three-Bladed Helical Savonius Wind Turbines Using Computational Fluid Dynamics Method

Yazarlar:

Mernuş Gül | Muhammed Safa Kamer | Erdem Alıç

Yayıncı:

Fırat University

Ana Başlıklar:

Elektrik Enerjisi Üretimi (Yenilenebilir Kaynaklar Dahil | Fotovoltaikler Hariç)

Dergi:

Firat University Journal of Experimental and Computational Engineering Vol.3 Issue 1, pp.52-64

Belge Tipi:

Makale

Yayın Tarihi:

2/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001312473

pISSN:

2822-2881

Anahtar kelimeler:

Özet:

 In this study, the effect of the phase angle of the semicircular blades between the stages on the aerodynamic performance of the three-blade, double-stage helical Savonius wind turbines HSWT, which are vertical axis wind turbines, was examined by the computational fluid dynamics CFD method. In the Savonius wind turbine system, the drag force effect provides the most significant contribution to aerodynamic performance. Performance improvements that can affect drag force can provide significant advantages. For this purpose, three-bladed double-stage helical Savonius rotors with eccentricity LH12 and phase angles of the semicircular blades between the stages Ɵ0, 45 and 90 were designed. Solidworks R2018 is used for designs and ANSYS-Fluent 18.1 programs are used for analysis. The turbine with LH12 and Ɵ90 was produced on a 3D printer and tested experimentally. Experiments were carried out in the T-490 air tunnel. The results obtained were used as a reference for numerical analysis and the ideal turbine model was tried to be determined. 10 different air velocities ranging between 3.83-20.35 ms were used in the numerical analysis. As a result, an 11.64 increase in the drag force was observed by changing the phase angle from 0 to 45 in HSWT 12s. By changing the phase angle from 0 to 45 in HSWT 12s, a 10.77 rise in the drag coefficient was observed. It has been evaluated that the HSWT efficiency improved with the increment in drag force.

 In this study, the effect of the phase angle of the semicircular blades between the stages on the aerodynamic performance of the three-blade, double-stage helical Savonius wind turbines HSWT, which are vertical axis wind turbines, was examined by the computational fluid dynamics CFD method. In the Savonius wind turbine system, the drag force effect provides the most significant contribution to aerodynamic performance. Performance improvements that can affect drag force can provide significant advantages. For this purpose, three-bladed double-stage helical Savonius rotors with eccentricity LH12 and phase angles of the semicircular blades between the stages Ɵ0, 45 and 90 were designed. Solidworks R2018 is used for designs and ANSYS-Fluent 18.1 programs are used for analysis. The turbine with LH12 and Ɵ90 was produced on a 3D printer and tested experimentally. Experiments were carried out in the T-490 air tunnel. The results obtained were used as a reference for numerical analysis and the ideal turbine model was tried to be determined. 10 different air velocities ranging between 3.83-20.35 ms were used in the numerical analysis. As a result, an 11.64 increase in the drag force was observed by changing the phase angle from 0 to 45 in HSWT 12s. By changing the phase angle from 0 to 45 in HSWT 12s, a 10.77 rise in the drag coefficient was observed. It has been evaluated that the HSWT efficiency improved with the increment in drag force.

 In this study, the effect of the phase angle of the semicircular blades between the stages on the aerodynamic performance of the three-blade, double-stage helical Savonius wind turbines HSWT, which are vertical axis wind turbines, was examined by the computational fluid dynamics CFD method. In the Savonius wind turbine system, the drag force effect provides the most significant contribution to aerodynamic performance. Performance improvements that can affect drag force can provide significant advantages. For this purpose, three-bladed double-stage helical Savonius rotors with eccentricity LH12 and phase angles of the semicircular blades between the stages Ɵ0, 45 and 90 were designed. Solidworks R2018 is used for designs and ANSYS-Fluent 18.1 programs are used for analysis. The turbine with LH12 and Ɵ90 was produced on a 3D printer and tested experimentally. Experiments were carried out in the T-490 air tunnel. The results obtained were used as a reference for numerical analysis and the ideal turbine model was tried to be determined. 10 different air velocities ranging between 3.83-20.35 ms were used in the numerical analysis. As a result, an 11.64 increase in the drag force was observed by changing the phase angle from 0 to 45 in HSWT 12s. By changing the phase angle from 0 to 45 in HSWT 12s, a 10.77 rise in the drag coefficient was observed. It has been evaluated that the HSWT efficiency improved with the increment in drag force.

 Bu çalışmada dikey eksenli rüzgâr türbinlerinden üç kanatlı çift kademeli helisel Savonius rüzgâr türbinlerinin HSRT kademeler arasındaki yarı dairesel kanatların birbirlerine olan faz açısının aerodinamik performansına olan etkisi hesaplamalı akışkanlar dinamiği HAD yöntemiyle incelenmiştir. Savonius rüzgâr türbini sisteminde aerodinamik performansa en ciddi katkıyı sürüklenme kuvveti etkisi sağlar. Sürüklenme kuvvetine etki edebilecek performans iyileştirmeleri önemli avantajlar sağlayabilir. Bu amaç için merkezden kaçıklığı LH12 olan ve kademeler arasındaki yarı dairesel kanatların faz açıları Ɵ0, 45 ve 90 olan üç kanatlı çift kademeli helisel Savonius rotorları tasarlanmıştır. Tasarımlar için Solidworks R2018, analizler için ANSYS-Fluent 18.1 programları kullanılmıştır. LH12 ve Ɵ90 olan türbin 3B yazıcıda üretilmiş ve deneysel olarak test edilmiştir. Deneyler T-490 hava tünelinde gerçekleştirilmiştir. Elde edilen sonuçlar sayısal analizlere referans olarak kullanılmış ve en ideal türbin modeli belirlenmeye çalışılmıştır. Sayısal analizde 3,83-20,35 ms arasında değişen 10 farklı hava hızı kullanılmıştır. Sonuç olarak HSRT 12lerde; faz açısının 0den, 45ye değiştirilmesi ile sürüklenme kuvvetinde 11,64 oranında artış görülmüştür. HSRT 12lerde; faz açısının 0den, 45ye değiştirilmesi ile sürüklenme katsayısında 10,77 oranında düşüş olduğu görülmüştür. Sürüklenme kuvvetinde meydana gelen iyileşme ile HSRT veriminde gelişme olacağı değerlendirilmiştir.

Makale detayları

Investigation of The Effect of Phase Angle on The Aerodynamic Performance of Three-Bladed Helical Savonius Wind Turbines Using Computational Fluid Dynamics Method

Yazarlar:

Mernuş Gül | Muhammed Safa Kamer | Erdem Alıç

Yayıncı:

Fırat University

Ana Başlıklar:

Elektrik Enerjisi Üretimi (Yenilenebilir Kaynaklar Dahil | Fotovoltaikler Hariç)

Dergi:

Firat University Journal of Experimental and Computational Engineering Vol.3 Issue 1, pp.52-64

Belge Tipi:

Makale

Yayın Tarihi:

2/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001312473

pISSN:

2822-2881

Aerodynamic properties

Computational fluids Dynamics

Drag force

Numerical analysis

Phase angle

Wind turbineAerodinamik özellikler

Faz açısı

Rüzgâr türbini

Hesaplamalı akışkanlar dinamiği

Sürüklenme kuvveti

Sayı

Makale detayları

Yazarlar: Mernuş Gül | Muhammed Safa Kamer | Erdem Alıç

Yayıncı: Fırat University

Ana Başlıklar: Elektrik Enerjisi Üretimi (Yenilenebilir Kaynaklar Dahil | Fotovoltaikler Hariç)

Dergi: Firat University Journal of Experimental and Computational Engineering Vol.3 Issue 1, pp.52-64

Belge Tipi: Makale

Yayın Tarihi: 2/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001312473

pISSN: 2822-2881

Sayı

Yazarlar:

Mernuş Gül | Muhammed Safa Kamer | Erdem Alıç

Yayıncı:

Fırat University

Ana Başlıklar:

Elektrik Enerjisi Üretimi (Yenilenebilir Kaynaklar Dahil | Fotovoltaikler Hariç)

Dergi:

Firat University Journal of Experimental and Computational Engineering Vol.3 Issue 1, pp.52-64

Belge Tipi:

Makale

Yayın Tarihi:

2/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001312473

pISSN:

2822-2881