Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Performance Prediction of Wind Power Turbine by CFD Analysis

유동해석을 통한 수직축 풍력발전 터빈의 성능 예측

  • Kim, Jong-Ho (Dept. of Mechanical System Design, Seoul Nat'l Univ. Sci. Tech.) ;
  • Kim, Jong-Bong (Dept. of Mechanical and Automotive Enginnering, Seoul Nat'l Univ. Sci. Tech.) ;
  • Oh, Young-Lok (Enerwinkorea)
  • 김종호 (서울과학기술대학교 기계시스템공학과) ;
  • 김종봉 (서울과학기술대학교 기계자동차공학과) ;
  • 오영록 (에너윈코리아(주))
  • Received : 2012.11.01
  • Accepted : 2013.01.07
  • Published : 2013.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

The performance of a vertical-type wind power generator system was predicted by CFD analysis. In the analysis, the reaction torque was calculated for a given rotational speed of the blades. The blade torque of a wind power system was obtained for various rotational speeds, and the generation power was calculated using the obtained torque and the rotational speed. The optimum generator specification, therefore, could be decided using the relationship between the generated power and the rotational speeds. The effects of the number of blades and blade shapes on the generation power were also investigated. Finally, the analysis results were compared with the experimental results.

수직축 풍력발전기의 발전 전력을 유동해석을 이용하여 예측하였다. 해석은 블레이드 회전 속도를 고정하고 그 회전 속도에서 토크를 반력으로 추출하였다. 여러 경우의 블레이드의 회전 속도에 대해 토크를 구하고 발전 용량을 계산하였다. 회전 속도에 따른 발전 토크와 발전 용량을 계산함으로써 최적의 발전기와 그 때의 회전 속도를 선정할 수 있었다. 또한, 블레이드의 개수와 블레이드의 형상에 대해 해석을 수행하여 그 영향을 분석하였다. 마지막으로 실험을 수행하여 그 결과를 비교하였다.

Keywords

References

  1. Kum, J.-Y., 2005, Structure Design and Experimental Appraisal of the Drag Force Type Vertical Axis Wind Turbine, Busan National University, M. S. Thesis.
  2. Kang, W. T. and Shin, B. R., 2010, "A Study on the Evaluation of Performance of Vertical Axial Type Wind Turbine," Proceedings of the KSME fall Annual Meeting, pp. 3397-3400.
  3. Park, J.-Y., Lee, M.-J., Lee, S.-J., Lee and Lee, S., 2009, "An Experimental Study on the Aerodynamic Performance of High-efficient, Small-Scale, Vertical-Axis Wind Turbine," Trans. Korean Soc. Mech. Eng. B, Vol. 33, No. 8, pp. 580-588. https://doi.org/10.3795/KSME-B.2009.33.8.580
  4. Ryu, K. J. and Kim, D. H., 2011, "CFD Analysis and Experiment of a Ciromill Type Vertical-Axis Wind Turbine," Proceedings of the KSCFE fall conference, pp. 207-213.
  5. Kim, B.-S., Kim, M.-E. and Lee, Y.-H., 2008, "Predicting the Aerodynamic Characteristics of 2D Airfoil and the Performance of 3D Wind Turbine using a CFD Code," Trans. Korean Soc. Mech. Eng. B, Vol. 32, No. 7, pp. 549-557 https://doi.org/10.3795/KSME-B.2008.32.7.549
  6. Kim, H. K., Kim, T. S., Lee, J. H., Moon, B. Y. and Kang, K. W., 2011, "Full Scale Structural Testing of Small Wind Turbine Composite Blade," Trans. Korean Soc. Mech. Eng. A, Vol. 35, No. 11, pp. 1407-1413. https://doi.org/10.3795/KSME-A.2011.35.11.1407
  7. Kim, D. S., Jung, W. Y. and Jung, J., 2012, "Stress Analysis of the Blade Joint for a Small Wind Turbine," Trans. Korean Soc. Mech. Eng. A, Vol. 36, No. 1, pp. 117-124. https://doi.org/10.3795/KSME-A.2012.36.1.117
  8. Maheri, A., Noroozi, S. and Vinney, J., 2007, "Combined Analytical/FEA-Based Coupled Aero Structure Simulation of a Wind Turbine with Bend-Twist Adaptive Blades," Renweable Energy, Vol. 32, pp. 916-930. https://doi.org/10.1016/j.renene.2006.04.007
  9. Nam, Y. S., Park, M. Y. and Yoo, N. S., 2006, "A Calibration and Uncertainty Analysis on the Load Monitoring System for a Low Speed Shaft and Rotor Blade of a Wind Turbine," Trans. Korean Soc. Mech. Eng. A, Vol. 30, No. 5, pp. 560-567. https://doi.org/10.3795/KSME-A.2006.30.5.560
  10. Nam, Y. S., Yoon, T. J. and Yoo, N. S., 2009, "Dynamic Characteristic Analysis of a Wind Turbine Depending on Varying Operational Conditions," Trans. Korean Soc. Mech. Eng. A, Vol. 33, No. 1, pp. 42-48. https://doi.org/10.3795/KSME-A.2009.33.1.42
  11. Moon, C.-J., Cheang, E.-H., Shim, K.-S., Jung, K.-S. and Chang, Y.-H., 2008, "Feasibility Study of Wind Power Generation Considering the Topographical Characteristics of Korea," J. of the Korean Solar Energy Society, Vol. 28, No. 6, pp. 24-32.
  12. Lee, M. S., Lee, S. H. and Hur, N. K., 2010, "A Numerical Study on the Effect of Mountainous Terrain and Turbine Arrangement on the Performance of Wind Power Generation," Trans. Korean Soc. Mech. Eng. B, Vol. 34, No. 10, pp. 901-906. https://doi.org/10.3795/KSME-B.2010.34.10.901
  13. Kim, B. T., 2011, "Efficiency Improvement Technology of Home Appliance Motor", J. of the Korean Institute of Power Electronics, Vo. 16, No. 6, pp. 39-44.