SavedAdd your journal

Journals / Mühendis ve Makina / 2026 / Cilt: 63 Sayı: 706

Numerical Investigation of the Effect of Overlap Ratio on S-Rotor Wind Turbine Performance

Örtüşme Oranının S-Rotor Rüzgâr Türbini Performansı Üzerine Etkisinin Sayısal Olarak İncelenmesi

Emre Varış(SAKARYA ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0002-4383-6858
Cemil Yiğit(SAKARYA ÜNİVERSİTESİ)0000-0003-0908-2148
Pages
67–81
Publication Date
2021-12-10
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The designs of the monolithic airflow duct turbine with overlap ratios of 0.10-0.30 were examined and it was concluded that the 0.25 overlap ratio gave the highest power coefficient.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Due to their quiet operation, small and aesthetic structure vertical axis wind turbines frequently use in city centers and social areas.
📊
Key Findings & Data:Various studies have been carried out in the literature in order to increase the low blade performance of the Savonius wind turbine, which is a vertical axis wind turbine.
💡
Conclusion & Impact:The designs of the monolithic airflow duct turbine with overlap ratios of 0.10-0.30 were examined and it was concluded that the 0.25 overlap ratio gave the highest power coefficient.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:dikey eksenli rüzgar türbini · savonius rüzgar türbini · hava akış kanalı

Abstract

Due to their quiet operation, small and aesthetic structure vertical axis wind turbines frequently use in city centers and social areas. Various studies have been carried out in the literature in order to increase the low blade performance of the Savonius wind turbine, which is a vertical axis wind turbine. In this study, circular, square, hexagonal, and monolithic airflow ducts with the same total surface area were opened between the blades. Among the airflow ducts, it has been determined that the monolithic airflow duct gives the highest power coefficient with a value of 2.82x10-2. The designs of the monolithic airflow duct turbine with overlap ratios of 0.10-0.30 were examined and it was concluded that the 0.25 overlap ratio gave the highest power coefficient.

Özet

Dikey eksenli rüzgâr türbinleri; küçük ve estetik yapıda olması, sessiz çalışabilmesi, şehir merkezlerinde ve sosyal alanlarda da sıkça kullanılması sayesinde tercih edilmektedir. Dikey eksenli rüzgâr türbini olan Savonius rüzgâr türbininin düşük olan kanat performansını arttırabilmek için literatürde çeşitli çalışmalar yapılmıştır. Bu çalışmada, kanatlar arasına toplamda aynı yüzey alanına sahip daire, kare, altıgen ve yekpare hava akış kanalı açılmıştır. İncelenen hava akış kanallarından yekpare hava akış kanalının 2,82x10-2 değeri ile en yüksek güç katsayısını verdiği tespit edilmiştir. Yekpare hava akış kanalı türbinin 0,10-0,30 arasında örtüşme oranlarına sahip tasarımları incelenmiş ve 0,25 örtüşme oranının en yüksek güç katsayısını verdiği sonucuna varılmıştır.

🔖

Cite This Article

Varış, E., Yiğit, C. (2021). Numerical Investigation of the Effect of Overlap Ratio on S-Rotor Wind Turbine Performance. Mühendis ve Makina, Cilt: 63 Sayı: 706, 67–81. https://doi.org/10.46399/muhendismakina.980502

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (20)

  1. Mishra, N., Jain, A., Nair, A., Khanna, B., Mitra, S. 2020. “Experimental Investigation on a Ducted Savonius Vertical Axis Wind Turbine and its Performance Comparison with and without End-plates,” Renewable Energy Research and Applications, vol. 1, p. 1-9
  2. Halmy, M.S., Didane, D.H., Afolabi, L.O., Alimi, S. 2021. “Computational Fluid Dynamics (CFD) Study on the Effect of the Number of Blades on the Performance of Double-Stage Savonius Rotor,” Cfd Letters, vol. 1, p. 1-10
  3. Wenehenubuna, F., Saputraa A., Sutanto H. 2015. “An experimental study on the performance of Savonius wind turbines related with the number of blades,” Energy Procedia, vol. 68, p. 297 – 304
  4. Zakaria, A., Ibrahim M.S. 2019. “Effect of twist angle on starting capability of a Savonius rotor – CFD analysis,” Materials Science and Engineering, vol. 1, p.1-6
  5. Yiğit, C. 2020. “Optimization of the S-Rotor Savonius Wind Turbine,” Sakarya University Journal of Science, vol. 24, p. 1215-1222
  6. Aldoss, T.K. 1984. “Savonius Rotor Using Swinging Blades as an Augmentation System,” Wind Engineering, vol. 8, p. 214-220.
  7. Deda, B., Atılgan, M. 2001. “Savonius rüzgâr çarklarının performanslarının arttırılması”, Yenilenebilir Enerji Kaynakları Sempozyumu ve Sergisi, Kayseri, p.157-164.
  8. Saha, U. K., Rajkumar, M. J. 2006. “On the performance analysis of Savonius rotor with twisted blades,” Renewable Energy, vol. 31, p. 1776-1788
  9. Kamoji, M. A., Kedare, S. B., & Prabhu, S. V. 2009). “Performance tests on helical Savonius rotors,” Renewable Energy, vol. 34, p. 521-529
  10. Roy, S., Saha, K. U. 2013. “Review on the numerical investigation into the design and development of Savonius wind rotors,” Renewable and Sustainable Energy Reviews, vol.24, p. 73-83.
  11. Göktaş, M., Kılıç, F. 2019. “Savonius rüzgâr türbini çevresindeki hava akışının hesaplanabilir akışkanlar dinamiği yöntemi ile analizi,” Polietnik Dergisi, vol. 22, p. 11-17
  12. Göktaş, M., Kılıç, F. 2018. “Savonius Rüzgâr Türbini (İkili ve Üçlü) Kanat Çevresi Akışının Sayısal Analizi,” Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol. 22, p. 1256-1261
  13. Amiri, M., Kahrom, M., and Teymourtash A. R. 2019. “Aerodynamic Analysis of a Three-Bladed Pivoted Savonius Wind Turbine,” Wind Tunnel Testing and Numerical Simulation. Journal of Applied Fluid Mechanics, vol. 12, p. 819-829
  14. Yiğit, C. 2020. “Computer-aided simulation of a vertical-axis wind turbine,” Emerging Materials Research, vol. 9, p. 1325-1333
  15. Adanta, D., Budiarso, W., Siswantara, A.I., and Prakoso, A.P. 2018. “Performance comparison of NACA 6509 and 6712 on pico hydro type cross-flow turbine by numerical method,” Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, vol. 45, p. 116–127
  16. Wenehenubuna, F., Saputraa A., Sutanto H. 2015. “An experimental study on the performance of Savonius wind turbines related with the number of blades,” Energy Procedia, vol. 68, p. 297 – 304.
  17. Setiawan, P., A., Yuwono, Y., and Widodo, W., A. 2018. “Numerical simulation on improvement of a Savonius vertical axis water turbine performance to advancing blade side with a circular cylinder diameter variations,” İnternational Conference n Climate Change, vol. 200, p. 1-7
  18. Dobrev, I., Massouh, F. 2012. “Exploring the Flow around a Savonius Wind Turbine,” Int Symp on Applications of Laser Techniques to Fluid Mechanics, vol.16, p. 1-9
  19. Chaklasiya, S., H., Saxena, R., R., Ramana, P., V. 2018. “Review on Performance Evaluation of Helical Savonius Wind Turbine,” Ijsrset, vol. 4, p. 1464-1471
  20. Lanzafame, R., Mauro, S., and Messina, M. 2014. “2D CFD Modeling of H-Darrieus Wind Turbines Using a Transition Turbulence Model,” Energy Procedia, vol. 45, pp. 131- 140