Investigation of the Tower Height and Turbulence Intensity on Horizontal Axis Wind Turbines

Rıza Büyükzeren; Mehmet Numan Kaya; Ali Aydın Bacakoğlu; Muhammed Uçar; Hasan Basri Altıntaş; Ali Öztürk; Ahmet Yasin Bilici

Article Details

Investigation of the Tower Height and Turbulence Intensity on Horizontal Axis Wind Turbines

Authors:

Rıza Büyükzeren | Mehmet Numan Kaya | Ali Aydın Bacakoğlu | Muhammed Uçar | Hasan Basri Altıntaş | Ali Öztürk | Ahmet Yasin Bilici

Publisher:

Necmettin Erbakan University

Main Topics:

Aerodinamik (Hipersonik Aerodinamik Hariç) | Enerji | Rüzgar Enerjisi Sistemleri

Journal:

Necmettin Erbakan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi Vol.6 Issue 3, pp.566-582

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001326743

pISSN:

2667-7989

Keywords:

Abstract:

 Horizontal axis wind turbines play an important role in renewable energy generation. For these turbines to operate efficiently and safely, various environmental and design factors need to be considered. In this study, the effects of tower height and turbulence intensity on the operating characteristics of horizontal axis wind turbines are investigated. Operating simulations of the NREL 5-MW wind turbine, selected as a reference, are carried out under different conditions. The simulations were carried out at tower heights of 90, 110 and 130 meters, turbulence intensity levels of 1, 5, 10 and 20, wind speeds of 6, 8 and 10 ms defined for the reference height of 80 meters. The findings of the study reveal that tower height and turbulence intensity have significant effects on wind turbine operating characteristics and the magnitude of this effect varies with tower height and wind speed. Turbulence intensity is found to have a significant effect on the aerodynamic and structural parameters of wind turbines. Increases in turbulence intensity resulted in increased fluctuations in wind speed and all related parameters. Furthermore, increasing the tower height increases the wind speed to which the turbine is exposed, thus increasing the output power of the wind turbine. In addition, the aerodynamic thrust increases with increasing tower height, which increases the effects on the structural elements. It was observed that the negative effects of turbulence intensity become more pronounced as the wind speed increases.

 Horizontal axis wind turbines play an important role in renewable energy generation. For these turbines to operate efficiently and safely, various environmental and design factors need to be considered. In this study, the effects of tower height and turbulence intensity on the operating characteristics of horizontal axis wind turbines are investigated. Operating simulations of the NREL 5-MW wind turbine, selected as a reference, are carried out under different conditions. The simulations were carried out at tower heights of 90, 110 and 130 meters, turbulence intensity levels of 1, 5, 10 and 20, wind speeds of 6, 8 and 10 ms defined for the reference height of 80 meters. The findings of the study reveal that tower height and turbulence intensity have significant effects on wind turbine operating characteristics and the magnitude of this effect varies with tower height and wind speed. Turbulence intensity is found to have a significant effect on the aerodynamic and structural parameters of wind turbines. Increases in turbulence intensity resulted in increased fluctuations in wind speed and all related parameters. Furthermore, increasing the tower height increases the wind speed to which the turbine is exposed, thus increasing the output power of the wind turbine. In addition, the aerodynamic thrust increases with increasing tower height, which increases the effects on the structural elements. It was observed that the negative effects of turbulence intensity become more pronounced as the wind speed increases.

 Horizontal axis wind turbines play an important role in renewable energy generation. For these turbines to operate efficiently and safely, various environmental and design factors need to be considered. In this study, the effects of tower height and turbulence intensity on the operating characteristics of horizontal axis wind turbines are investigated. Operating simulations of the NREL 5-MW wind turbine, selected as a reference, are carried out under different conditions. The simulations were carried out at tower heights of 90, 110 and 130 meters, turbulence intensity levels of 1, 5, 10 and 20, wind speeds of 6, 8 and 10 ms defined for the reference height of 80 meters. The findings of the study reveal that tower height and turbulence intensity have significant effects on wind turbine operating characteristics and the magnitude of this effect varies with tower height and wind speed. Turbulence intensity is found to have a significant effect on the aerodynamic and structural parameters of wind turbines. Increases in turbulence intensity resulted in increased fluctuations in wind speed and all related parameters. Furthermore, increasing the tower height increases the wind speed to which the turbine is exposed, thus increasing the output power of the wind turbine. In addition, the aerodynamic thrust increases with increasing tower height, which increases the effects on the structural elements. It was observed that the negative effects of turbulence intensity become more pronounced as the wind speed increases.

 Yatay eksenli rüzgâr türbinleri, yenilenebilir enerji üretiminde önemli bir rol oynamaktadır. Bu türbinlerin verimli ve güvenli bir şekilde çalışabilmesi için çeşitli çevresel ve tasarım faktörlerinin dikkate alınması gerekmektedir. Bu çalışmada, yatay eksenli rüzgâr türbinlerinde kule yüksekliği ve türbülans yoğunluğunun rüzgâr türbini çalışma karakteristiği üzerindeki etkileri incelenmiştir. Referans olarak seçilen NREL 5-MW rüzgâr türbinin çalışma simülasyonları farklı koşullarda gerçekleştirilmiştir. Simülasyonlar, 90, 110 ve 130 metre kule yüksekliklerinde, 1, 5, 10 ve 20 türbülans yoğunluğu seviyelerinde, referans 80 metre yükseklik için tanımlanan 6, 8 ve 10 ms rüzgâr hızlarında gerçekleştirilmiştir. Çalışmanın bulguları, kule yüksekliği ve türbülans yoğunluğunun rüzgâr türbini çalışma karakteristiği üzerinde önemli etkileri olduğunu ve bu etkinin büyüklüğünün kule yüksekliği ve rüzgâr hızına bağlı olarak değişkenlik gösterdiğini ortaya koymaktadır. Türbülans yoğunluğunun, rüzgâr türbinlerinin aerodinamik ve yapısal parametreleri üzerinde önemli bir etkiye sahip olduğu görülmüştür. Türbülans yoğunluğundaki artışlar, rüzgâr hızında ve buna bağlı tüm parametrelerde dalgalanmaların artmasına neden olmuştur. Ayrıca, kule yüksekliğinin artması, türbinin maruz kaldığı rüzgâr hızını arttırdığı için rüzgâr türbini çıkış gücü artmaktadır. Ancak artan kule yüksekliği ile aerodinamik itme kuvveti de artmakta ve bu da yapısal elemanlar üzerindeki etkileri arttırmaktadır. Rüzgâr hızı arttıkça türbülans yoğunluğunun olumsuz etkilerinin daha belirgin hale geldiği görülmüştür.

Article Details

Investigation of the Tower Height and Turbulence Intensity on Horizontal Axis Wind Turbines

Authors:

Rıza Büyükzeren | Mehmet Numan Kaya | Ali Aydın Bacakoğlu | Muhammed Uçar | Hasan Basri Altıntaş | Ali Öztürk | Ahmet Yasin Bilici

Publisher:

Necmettin Erbakan University

Main Topics:

Aerodinamik (Hipersonik Aerodinamik Hariç) | Enerji | Rüzgar Enerjisi Sistemleri

Journal:

Necmettin Erbakan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi Vol.6 Issue 3, pp.566-582

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001326743

pISSN:

2667-7989

HAWT

NREL

Tower height

Turbulence intensity

Wind energyKule yüksekliği

NREL

Rüzgâr enerjisi

Türbülans yoğunluğu

YERT

Issues

Article Details

Authors: Rıza Büyükzeren | Mehmet Numan Kaya | Ali Aydın Bacakoğlu | Muhammed Uçar | Hasan Basri Altıntaş | Ali Öztürk | Ahmet Yasin Bilici

Publisher: Necmettin Erbakan University

Main Topics: Aerodinamik (Hipersonik Aerodinamik Hariç) | Enerji | Rüzgar Enerjisi Sistemleri

Journal: Necmettin Erbakan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi Vol.6 Issue 3, pp.566-582

Document Type: Article

Publication Date: 12/2024

Document Language: Turkish

Document ID (Org No.): 2001326743

pISSN: 2667-7989

Issues

Authors:

Rıza Büyükzeren | Mehmet Numan Kaya | Ali Aydın Bacakoğlu | Muhammed Uçar | Hasan Basri Altıntaş | Ali Öztürk | Ahmet Yasin Bilici

Publisher:

Necmettin Erbakan University

Main Topics:

Aerodinamik (Hipersonik Aerodinamik Hariç) | Enerji | Rüzgar Enerjisi Sistemleri

Journal:

Necmettin Erbakan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi Vol.6 Issue 3, pp.566-582

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001326743

pISSN:

2667-7989