Development of small domestic wind turbine with scoop and prediction of its annual power output

Based on an unperturbed airflow assumption and using a set of validated modelling methods, a series of activities were carried out to optimise an aerodynamic design of a small wind turbine for a built up area, where wind is significantly weaker and more turbulent than those open sites preferable for wind farms. These activities includes design of the blades using a FORTRAN code; design of the nose cones and nacelles, which then constituted the rotor along with the blades; optimisation of the rotor designs in the virtual wind tunnel developed in the first part of the study; and finally, estimation of the annual power output of this wind turbine calculated using hourly wind data of a real Scottish Weather Station. The predicted annual output of the finalised rotor was then compared with other commercial turbines and result was rather competitive.

[1]  Richard G. J. Flay,et al.  Aerodynamic Analysis and Monitoring of the Vortec 7 Diffuser-augmented Wind Turbine , 1998 .

[2]  Michael S. Selig,et al.  Wind tunnel aerodynamic tests of six airfoils for use on small wind turbines , 2004 .

[3]  Jens Nørkær Sørensen,et al.  A global Navier-Stokes rotor prediction model , 1997 .

[4]  Peter Richards,et al.  CFD modelling and the development of the diffuser augmented wind turbine , 2002 .

[5]  J. van Dam,et al.  Acoustic Tests of Small Wind Turbines: Preprint , 2004 .

[6]  Michael S. Selig,et al.  Wind Tunnel Aerodynamic Tests of Six Airfoils for Use on Small Wind Turbines; Period of Performance: October 31, 2002--January 31, 2003 , 2004 .

[7]  K. M. Foreman,et al.  Experiments with a diffuser augmented model wind turbine , 1982 .

[8]  O. Igra,et al.  Research and development for shrouded wind turbines , 1981 .

[9]  John E. Fletcher,et al.  The methodology for aerodynamic study on a small domestic wind turbine with scoop , 2008, WCE 2008.

[10]  F. W. Lanchester,et al.  A CONTRIBUTION TO THE THEORY OF PROPULSION AND THE SCREW PROPELLER , 2009 .

[11]  James F. Manwell,et al.  Book Review: Wind Energy Explained: Theory, Design and Application , 2006 .

[12]  David Wood,et al.  The starting and low wind speed behaviour of a small horizontal axis wind turbine , 2004 .

[13]  Minoru Nagai,et al.  Momentum theory of diffuser augmented wind turbine. , 1987 .

[14]  Jessica Swanson,et al.  Solidity and Blade Number Effects on a Fixed Pitch, 50 W Horizontal Axis Wind Turbine , 2003 .

[15]  Matthew M. Duquette,et al.  Numerical Implications of Solidity and Blade Number on Rotor Performance of Horizontal-Axis Wind Turbines , 2003 .

[16]  Shinya Takagi,et al.  Characteristics of a highly efficient propeller type wind turbine with a diffuser for stand-alone power supply systems , 2003, The 25th International Telecommunications Energy Conference, 2003. INTELEC '03..