Open Access Open Access  Restricted Access Subscription or Fee Access

Performance and Aerodynamic Attitude of KIONAS, a New Configuration of a Vertical Axis Wind Turbine


(*) Corresponding author


Authors' affiliations


DOI: https://doi.org/10.15866/ireme.v10i3.8873

Abstract


The aim of this work is to show the performance and the aerodynamic attitude of KIONAS, a new configuration of a vertical axis wind turbine. KIONAS has a stator over the rotor and the special feature that is able to consist of several stages. The stator is shaped in such a way to increase the velocity of the air which impacts the rotor blades and the performance of each stage increases with the increase of number of stages. The effects of wind velocity, the various numbers of blades of the rotor, the inclination of these blades, the rotor diameter, the stator’s shape and the number of stages on the performance on the vertical axis wind turbine were studied. A FORTRAN code was developed to solve the equations of continuity and momentum in order to predict the power on several cases. A commercial Computational Fluid Dynamics code was used to gain further knowledge on the flow field. It was concluded that for higher wind velocities and greater number of blades, more power is produced. The performance was found to be higher for a stator with curved guide vanes and for KIONAS configuration with more stages.
Copyright © 2016 Praise Worthy Prize - All rights reserved.

Keywords


Performance; Power Coefficient; Simulation; Stator with Guide Vanes; Vertical Axis Wind Turbine

Full Text:

PDF


References


M. A. Rosen, J. O. Ajedegba, G. F. Naterer, Blade configuration effects on flow distribution and power output for a vertical axis wind turbine, International Journal of Energy, Environment and Economics, Vol. 17, n.2-3, pp. 243-300, 2009.

K. A. Pope, V. A. Rodrigues, R. A. B. Doyle, A. A. Tsopelas, R. A. Gravelsins, G. F. A. Naterer, E. C. Tsang, Effects of stator vanes on power coefficients of a zephyr vertical axis wind turbine, Renewable Energy, Vol. 35, n. 5, pp. 1043-1051, 2010.
http://dx.doi.org/10.1016/j.renene.2009.10.012

S. A. McTavish, D. A. Feszty, T. B. Sankar, The design and development of a novel vertical axis wind turbine using computational fluid dynamics, Proc. European Wind Energy Conference and Exhibition 2010, EWEC 2010, Warsaw, 2010, pp. 4221-4231.

G. Wu, X. Chen, Y. Cao, J. Zhou, Simulation and test for two airfoils with wind guide vane of VAWT, Advanced Materials Research, Vol. 148-149, pp. 1199-1203, 2011.
http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1199

U. R. N. Cristobal, A. Gallegos-Muñoz, R. A. J. Manuel, Numerical analysis of a rooftop vertical axis wind turbine, Proc. ASME 2011 5th International Conference on Energy Sustainability, Washington, 2011, pp. 2061-2070.
http://dx.doi.org/10.1115/es2011-54173

H. Flores-Saldaña, A. Gallegos-Muñoz, N. C. Uzarraga-Rodriguez, V. H. Rangel-Hernandez, Numerical analysis of the overlap effect between blades at four-bladed rooftop VAWT, Proc. ASME 2012 6th International Conference on Energy Sustainability, San Diego, 2012, pp. 1341-1348.
http://dx.doi.org/10.1115/es2012-91047

Z. P. Tang, Y. X. Yao, L. Zhou, Q. Yao, Optimal design of a new type of savonius rotor using simulation analysis, Key Engineering Materials, Vol. 499, pp. 120-125, 2012.
http://dx.doi.org/10.4028/www.scientific.net/kem.499.120

S. S. Wangikar, N. D. Misal, Effect of some design parameters on performance of a Shutter Type Vertical Axis Wind Turbine, Proc. ASME 2012 Gas Turbine India Conference, Mumbai, 2012, pp. 159-164.
http://dx.doi.org/10.1115/gtindia2012-9617

M. A. Ku, M. A. Kang, K. A. Paik, G. A. Cha, Y. B. Kim, J. B. Oh, H. B. Lee ,Output characteristics of wind power turbine according to the position of stator groove, Proc. International Conference on Renewable Energy Research and Applications, Birmingham 2012.
http://dx.doi.org/10.1109/icrera.2012.6477403

H. A. B. Yuan, Z. A. Zhao, Y. A. Zheng, J. A. Huang, Effects of guiding vanes on aerodynamic performance of vortex vertical axis wind turbine, Journal of Hohai University, Vol. 41, n. 6, pp. 560-564, 2013.

S. A. Rolland, M. Thatcher, W. Newton, A. J. Williams, T. N. Croft, D. T. Gethin, M. Cross, Benchmark experiments for simulations of a vertical axis wind turbine, Applied Energy, Vol. 111, pp. 1183-1194, 2013.
http://dx.doi.org/10.1016/j.apenergy.2013.06.042

A. Alaimo, A. Esposito, A. Milazzo, C. Orlando, F. Trentacosti, Slotted blades savonius wind turbine analysis by CFD, Energies, Vol. 6, n. 12, pp. 6335-6351, 2013.
http://dx.doi.org/10.3390/en6126335

S. Roy, U. K. Saha, Computational study to assess the influence of overlap ratio on static torque characteristics of a vertical axis wind turbine, Proc. Procedia Engineering, Vol. 51, pp. 694-702, 2013.
http://dx.doi.org/10.1016/j.proeng.2013.01.099

K. H. Wong, W. T. Chong, H. T. Yap, A. Fazlizan, W. Z. W. Omar, S. C. Poh, F. B. Hsiao, The design and flow simulation of a power-augmented shroud for urban wind turbine system, Energy Procedia, Vol. 61, pp. 1275-1278, 2014.
http://dx.doi.org/10.1016/j.egypro.2014.11.1080

R. Nobile, M. Vahda ti, J. F. Barlow, A. Mewburn-Crook, Unsteady flow simulation of a vertical axis augmented wind turbine: A two-dimensional study, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 125, pp. 168-179, 2014.
http://dx.doi.org/10.1016/j.jweia.2013.12.005

T. Y. Chen, Y. T. Liao, Y. Y. Chen, J. L. Liou, Application of a vortical stator assembly to augment the rotor performance of drag-type vertical-axis wind turbines, Journal of Aeronautics, Astronautics and Aviation, Series A, Vol. 47, n. 2, pp. 75-84, 2015.

T. Y Chen., Y. Y Chen, Developing a Vortical Stator Assembly to Improve the Performance of Drag-Type Vertical-Axis Wind Turbines, Journal of Mechanics, Vol. 31, n. 6, pp. 693-699, 2015.
http://dx.doi.org/10.1017/jmech.2015.35

M. Burlando, A. Ricci, A. Freda, M. P. Repetto, Numerical and experimental methods to investigate the behaviour of vertical-axis wind turbines with stators, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 144, pp. 125-133, 2015.
http://dx.doi.org/10.1016/j.jweia.2015.04.006

ANSYS® Academic Research, Release 16.0

F. R. Menter, Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications, AIAA Journal, Vol. 32, pp. 1598-1605, 1994.
http://dx.doi.org/10.2514/3.12149

J. Y. Luo, R. I. Issa, A. D. Gosman, Prediction of Impeller-Induced Flows in Mixing Vessels Using Multiple Frames of Reference, In IChemE Symposium Series, n. 136, pp. 549-556, 1994.


Refbacks



Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize