Comprehensive review of the effect of flap technologies in H-Darrieus vertical axis wind turbines

Abstract

This study presents a comprehensive analysis of the application and impact of flap technologies on the performance of Vertical Axis Wind Turbines (VAWTs). As a type of flow control device, flap technologies are proven to enhance aerodynamic performance by delaying flow separation, increasing lift, and reducing drag. Numerous experimental studies and numerical simulations demonstrate how flap technologies significantly improve the efficiency of VAWTs, especially at low wind speeds. Additionally, the role of flap technologies in extending the operational wind speed range and enhancing the self-starting capabilities of VAWTs is highlighted. This enhancement is crucial as it contributes to the viability of VAWTs in urban and suburban settings where wind conditions are highly variable. This study delves into the optimal positioning and arrangement of flap technologies on turbine blades to maximize performance enhancement. Thus, the paper offers a thorough exploration of VGs (Vortex Generators) as a key aerodynamic modification for boosting the performance of VAWTs and encourages continued research and optimization in this area. Further development and refinement of flap technologies could lead to their broader adoption in renewable energy systems, enhancing both the efficiency and sustainability of wind power generation.

Keywords

• Wind energy
• Vortex generator
• Vertical axis wind turbine (VAWT)
• Passive control
• Flap technologies

H-Darrieus dikey eksenli rüzgâr türbinlerinde kanatçık teknolojilerinin etkisinin kapsamlı değerlendirilmesi

Öz

Bu çalışma, Dikey Eksenli Rüzgâr Türbinleri (DERT'ler) üzerinde kanatçık teknolojilerinin uygulanması ve etkileri üzerine kapsamlı bir analiz sunmaktadır. Bir tür akış kontrol cihazı olan kanatçık teknolojileri, akış ayrılmasını geciktirerek, kaldırma kuvvetini artırarak ve sürtünmeyi azaltarak aerodinamik performansı artırmış olduğu kanıtlanmıştır. Çeşitli deneysel çalışmalar ve sayısal simülasyonlar, kanatçık teknolojilerinin özellikle düşük rüzgâr hızlarında DERT'lerin verimliliğini önemli ölçüde nasıl iyileştirdiğini göstermektedir. Ayrıca, kanatçık teknolojilerinin operasyonel rüzgâr hızı aralığını genişletme ve DERT'lerin kendiliğinden başlama yeteneklerini artırma rolü vurgulanmaktadır. Bu iyileştirme, rüzgâr koşullarının oldukça değişken olduğu kentsel ve banliyö ortamlarında DERT 'lerin uygulanabilirliğine katkı sağlaması açısından hayati öneme sahiptir. Bu çalışma, performans artırımını maksimize etmek için flap teknolojilerinin türbin kanatları üzerindeki optimal konumlandırılması ve düzenlenmesine derinlemesine inmektedir. Böylece, makale DERT 'lerin performansını artırmada anahtar bir aerodinamik modifikasyon olarak VG'leri (Girdap Jeneratörleri) kapsamlı bir şekilde ele almakta ve bu alandaki araştırma ve optimizasyonun devam etmesini teşvik etmektedir. Kanatçık teknolojilerinin daha da geliştirilmesi ve iyileştirilmesi, yenilenebilir enerji sistemlerinde daha geniş bir benimsemeye yol açabilir, rüzgâr gücü üretiminin hem verimliliğini hem de sürdürülebilirliğini artırabilir.

Anahtar Kelimeler

• Rüzgâr enerjisi
• Girdap jeneratörü
• Dikey eksenli rüzgâr türbini (DERT)
• Pasif kontrol
• Kanatçık teknolojileri

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