Wind and Structures

Techno-Press (테크노프레스)
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Numerical and experimental analysis of a 3D printed Savonius rotor with built-in extension plate

  • Altan, Burcin Deda (Faculty of Engineering, Department of Mechanical Engineering, Pamukkale University) ;
  • Kovan, Volkan (Faculty of Engineering, Department of Mechanical Engineering, Akdeniz University) ;
  • Altan, Gurkan (Faculty of Engineering, Department of Mechanical Engineering, Pamukkale University)
  • Received : 2017.09.14
  • Accepted : 2018.01.27
  • Published : 2018.07.25
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Abstract

In this study, the enhancement of the conventional Savonius wind rotor performance with extension plate has been investigated experimentally and numerically. Experimental models used in the study have been produced with 3D (three dimensional) printing, which is one of the rapid prototyping techniques. Experiments of produced Savonius wind rotor models have been carried out in a wind tunnel. CFD (Computational Fluid Dynamics) analyses have been performed under the same experimental conditions to ensure that experiments and numerical analyses are supported to each other. An additional extension plate has been used in order to enhance the performance of the conventional Savonius wind rotor with a gap distance between blades. It can be called modified Savonius rotor or Savonius rotor with built-in extension plate. Thus, the performance of the rotor has been enhanced without using additional equipment other than the rotor itself. Numerical and experimental analyses of Savonius wind rotor models with extension plate have been carried out under predetermined boundary conditions. It has been found that the power coefficient of the modified Savonius rotor is increased about 15% according to the conventional Savonius rotor.

Keywords

References

  1. Akwa, J.V., Junior, G.A. and Petry, A.P. (2012), "Discussion on the verification of the overlap ratio influence on performance coefficients of a Savonius wind rotor using computational fluid dynamics", Renew. Energ., 38, 141-149. https://doi.org/10.1016/j.renene.2011.07.013
  2. Aldoss, T.K. (1984), "Savonius rotor using swinging blades as an augmentation system", Wind Eng., 8(4), 214-220.
  3. Aresti, L., Tutar, M., Chen, Y. and Calay, R.K. (2013), "Computational study of a small scale vertical axis wind turbine (VAWT): comparative performance of various turbulence models", Wind Struct., 17(6) 647-670. https://doi.org/10.12989/was.2013.17.6.647
  4. Binici, I. (2001), "Industrial measurement and calibration", Birsen Press, Istanbul.
  5. Chen, T.Y. and Liou, L.R. (2011), "Blockage corrections in wind tunnel tests of small horizontal-axis wind turbines", Exp. Therm. Fluid Sci., 35(3), 565-9. https://doi.org/10.1016/j.expthermflusci.2010.12.005
  6. Damak, A., Driss, Z. and Abid, M.S. (2013), "Experimental investigation of helical Savonius rotor with a twist of 180", Renew. Energ., 52, 136-142. https://doi.org/10.1016/j.renene.2012.10.043
  7. Deda Altan, B. and Atilgan, M. (2010), "The use of a curtain design to increase the performance level of a Savonius wind rotors", Renew. Energ., 35, 821-829. https://doi.org/10.1016/j.renene.2009.08.025
  8. Deda Altan, B. and Atilgan, M. (2012), "A study on increasing the performance of Savonius wind rotors", J. Mech. Sci. Technol., 26(5), 1493-1499. https://doi.org/10.1007/s12206-012-0313-y
  9. Driss, Z., Mlayeh, O., Driss, D., Maaloul, M. and Abid, M.S. (2014), "Numerical simulation and experimental validation of the turbulent flow around a small incurved Savonius wind rotor", Energy, 74, 506-517. https://doi.org/10.1016/j.energy.2014.07.016
  10. El-Askary, W.A., Nasef, M.H., AbdEL-hamid, A.A. and Gad, H.E. (2015), "Harvesting wind energy for improving performance of Savonius rotor", J. Wind Eng. Ind. Aerod., 139, 8-15. https://doi.org/10.1016/j.jweia.2015.01.003
  11. Fujisawa, N. and Gotoh, F. (1994), "Experimental study on the aerodynamic performance of a Savonius rotor", J. Solar Energ. Eng., 116(3), 148-152. https://doi.org/10.1115/1.2930074
  12. Genceli, O.F. (1998), "Measurement technique", Birsen Press, Istanbul.
  13. Goodarzi, M. and Keimanesh, R. (2015), "Numerical analysis on overall performance of Savonius turbines adjacent to a natural draft cooling tower", Energ. Convers. Manage., 99, 41-49. https://doi.org/10.1016/j.enconman.2015.04.027
  14. Grinspan, A.S., Kumar, P.S., Saha, U.K., Mahanta, P. Ratna Rao, D.V. and Veda Bhanu, G. (2001), "Design, development and testing of Savonius wind turbine rotor with twisted blades", Proceedings of the 28th National Conference on Fluid Mechanics and Fluid Power, Chandigarh, India.
  15. Gupta, R., Biswas, A. and Sharma, K.K. (2008), "Comparative study of a three-bucket Savonius rotor with a combined three-bucket Savonius-three-bladed Darrieus rotor", Renew. Energ., 33, 1974-1981. https://doi.org/10.1016/j.renene.2007.12.008
  16. Hayashi, T., Li, Y., Hara, Y. and Suzuki, K. (2005), "Wind tunnel tests on a three-stage out-phase 2 Savonius rotor", JSME Int. J., 48(1), 9-16. https://doi.org/10.1299/jsmeb.48.9
  17. Ishimatsu, K., Kage, K. and Okubayashi, T. (2002), "Numerical study for the flow fields and performances of Savonius-type and Bach-type rotors", Proceedings of the 10th International Symposium on Flow Visualization, Kyoto Japan.
  18. Kacprzak, K., Liskiewicz, G. and Sobczak, K. (2013), "Numerical investigation of conventional and modified Savonius wind turbines", Renew. Energ., 60, 578-585. https://doi.org/10.1016/j.renene.2013.06.009
  19. Kamoji, M.A., Kedare, S.B. and Prabhu, S.V. (2008), "Experimental investigations on single stage modified Savonius rotor", Appl. Energ., 86, 1064-1073.
  20. Lee, J.H., Lee, Y.T. and Lim, H.C. (2016), "Effect of twist angle on the performance of Savonius wind turbine", Renew. Energ., 89, 231-244. https://doi.org/10.1016/j.renene.2015.12.012
  21. Mohamed, M.H., Janiga, G., Pap, E. and Thevenin, D. (2010), "Optimization of Savonius turbines using an obstacle shielding there turning blade", Renew. Energ., 35, 2618-2626. https://doi.org/10.1016/j.renene.2010.04.007
  22. Nasef, M.H., El-Askary, W.A., AbdEL-hamid, A.A. and Gad, H.E. (2013), "Evaluation of Savonius rotor performance: Static and dynamic studies", J. Wind Eng. Ind. Aerod., 123, 1-11. https://doi.org/10.1016/j.jweia.2013.09.009
  23. Ross, I. and Altman, A. (2011), "Wind tunnel blockage corrections: review and application to Savonius vertical-axis wind turbines", J. Wind Eng. Ind. Aerod., 99(5), 523-38. https://doi.org/10.1016/j.jweia.2011.02.002
  24. Saha, U.K. and Rajkumar, M.J. (2006), "On the performance analysis of savonius rotor with twisted blades", Renew. Energ., 31, 1776-1788. https://doi.org/10.1016/j.renene.2005.08.030
  25. Saha, U.K., Thotla, S. and Maity, D. (2008), "Optimum design configuration of Savonius rotor through wind tunnel experiments", J. Wind Eng. Ind. Aerod., 96, 1359-1375. https://doi.org/10.1016/j.jweia.2008.03.005
  26. Sharma, S. and Kumar Sharma, R. (2017), "CFD investigation to quantify the effect of layered multiple miniature blades on the performance of Savonius rotor", Energ. Convers. Manage., 144, 275-285. https://doi.org/10.1016/j.enconman.2017.04.059
  27. Tahania, M., Rabbani, A., Kasaeian, A., Mehrpooya, M. and Mirhosseinib, M., (2017), "Design and numerical investigation of Savonius wind turbine with discharge flow directing capability", Energy, 130, 327-338. https://doi.org/10.1016/j.energy.2017.04.125
  28. Tong, Z. and Dietmar, R. (2013), "Numerical study of detailed flow field and performance of Savonius wind turbines", Renew. Energ., 51, 373-381. https://doi.org/10.1016/j.renene.2012.09.046

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  1. Parameters Evaluation in 3D Spare Parts Printing vol.10, pp.4, 2018, https://doi.org/10.3390/electronics10040365