Performance Augmenting of a Vertical Axis Wind Turbine using Adaptable Convergent Ducting System
Abstract
Developments are carried out to enhance the performance of vertical axis wind turbines (VAWT). This paper studies the performance of the ducted wind turbine with convergent duct (DAWT). Basically, the duct technique is utilized to provide the desired wind velocity facing the turbine. Methodology was developed to estimate the decisive performance parameter and to present the effect of the convergent duct with different inlet angles. The ducted wind turbine was analyzed and simulated using MATLAB software and numerically using ANSYS-Fluent 17.2. Result of both approaches were presented and showed good closeness for the two cases of covering angles 12 and 20 respectively. Results also showed that the convergent duct with an inlet angle 12 and 20 improved the coefficient of performance at a specified tip speed ratio by 25.8% and 33.33% respectively in the productivity of wind turbine.
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References
T. Saravana Kannan, Saad A. Mutasher Utasher, Y.H. Kenny Lau, "Design and Flow Velocity Simulation of Diffuser Augmented Wind Turbine Using CFD "Journal of Engineering Science and Technology Vol. 8, No. 4 (2013) 372 – 384
R. A. Kishore, T. Coudron, and S. Priya , "Small-scale Wind Energy Portable Turbine (SWEPT)", Journal of Wind Engineering and Industrial Aerodynamics, vol . 116, 2013, 21-31.
Andy Grant, Nick Kelly," The Development of a Ducted Wind Turbine Simulation Mode", Energy Systems Research Unit, University of Strathclyde, Scotland, pp. 407–414, 2003.
Abdullateef A., Dhari Y. and Hayder A.;” performance evaluation of the vertical axis wind turbine with various rotor geometries”; Al-Qadisiyah Journal for Engineering Sciences, Vol. 9; No. 4, 2016.
C.J. Lawn," Optimization of the Power Output from Ducted Turbines ", Proceedings of the Institution of Mechanical Engineers Part Ae Power & Energy, vol. 217, 2003, pp. 107e118.
M. Shives, C. Crawford; "Developing an Empirical Model for Ducted Tidal Turbine Performance Using Numerical Simulation Results"; Proc. Inst. Mech. Eng. PartA J. Power Energy226(1)(2012)112e125,http://dx.doi.org/10.1177/ 0957650911417958. ISSN 0957-6509.
B. Kosasih, A. Tondelli," Experimental Study of Shrouded Micro-wind Turbine",Procedia. Eng. 49(2012)92e98, http://dx.doi.org/10.1016/j.proeng.2012.10.16.ISSN18777058.
S.A.H. Jafari, B. Kosasih;"Flow Analysis of Shrouded Small Wind Turbine with a Simple Frustum Diffuser with Computational Fluid dynamics simulations"; J. Wind Eng. Ind. Aerodyn.125(2014)102e110,110, http://dx.doi.org/10.1016/j.jweia.2013.12.001. ISSN 01676105.
J.N. Sّrensen,"Aerodynamic Aspects of Wind Energy Conversion ", Annu. Rev. Fluid Mech. 43 (2011)427e448, http://dx.doi.org/10.1146/annurev-fluid122109-160801.ISSN 0066-4189.
P. Mycek, B. Gaurier, G. Germain, G. Pinon, E. Rivoalen," Experimental Study of The Turbulence Intensity Effects on Marine Current Turbines Behavior Part I: one Single Turbine",Renew.Energy66(2014)729e746,http://dx.doi.org/10.1016/j.renene.2013.12.036.ISSN 09601481.
L.J. Vermeer, J.N. Sّrensen, A. Crespo," Wind Turbine Wake Aerodynamics, Prog", Aerosp.Sci.39(6e7)(2003)467e510,http://dx.doi.org/10.1016/S03760421(03)00078-2. ISSN 03760421.
D.A. Howey, A. Bansal, A.S. Holmes," Design and Performance of a Centimeter Scale Shrouded Wind Turbine for Energy harvesting ", Smart Mater. Struct. 20 (8) (2011), http://dx.doi.org/10.1088/0964-1726/20/8/085021. ISSN0964e1726.
Hansen, M.O.L., Sّrensen, N.N., Flay, R.G.J., 2000, "Effect of Placing a Diffuser Around a Wind Turbine ", Wind Energy 3, 207–213,
[14] Patrick H. Oosthuizen , William E. Carscallen, " Introduction to Compressible Fluid Flow, Second Edition- 2nd Edition , 2013, ISBN-13: 978-1439877913.
H. E. Saber, E. M. Attia, H. A. El Gamal," Analysis of Straight Bladed Vertical Axis Wind Turbine". International Journal of Engineering Research & Technology (IJERT) ISSN: 2278-0181 IJERTV4IS070453 www.ijert.org (This work is licensed under a Creative Commons Attribution 4.0 International License.) Vol. 4 Issue 07, July-2015
Launder B. E. and Spalding D. B.," Lectures in Mathematical Models of Turbulence", Academic Press, London, England. 1972.
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