Modelling and analysis of a novel wind turbine structure

This study introduces a novel wind turbine structure for an urban environment. A computational modelling has been conducted to investigate the effect of the new structure on the flow behaviour of entrance wind through the structure and the feasibility of the new wind turbine working at different wind speeds in an urban area. The wind flow behaviour through a chamber of the wind turbine structure has resulted in an increase of 1.3 times of the wind velocity at the outlet of the wind turbine. This is equivalent to 2.5 times increase of wind energy. The wind tunnel tests were carried out to validate the simulation results. There is a good correlation between the experimental and computational results. It is evident that the presented computational method can predict and evaluate the performance of this new type of shroud structure in an urban environment.

[1]  Ken-ichi Abe,et al.  An investigation of flow fields around flanged diffusers using CFD , 2004 .

[2]  Luis Alvarez-Icaza,et al.  Wind turbine power coefficient real-time identification , 2009, Int. J. Model. Identif. Control..

[3]  L. Alvarez-Icaza,et al.  Modelling wind turbine mechanical power by friction effects , 2009, Int. J. Model. Identif. Control..

[4]  Yingxue Yao,et al.  Effect of Camber Airfoil on Self Starting of Vertical Axis Wind Turbine , 2011 .

[5]  Tim Sharpe,et al.  Crossflex: Concept and early development of a true building integrated wind turbine , 2010 .

[6]  G. V. Bussel,et al.  Small wind turbines for the built environment , 2005 .

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

[8]  Zhifeng Hao,et al.  Convergence time analysis of ant system algorithm , 2012, Int. J. Model. Identif. Control..

[9]  Richard Hewston,et al.  An analysis of observed daily maximum wind gusts in the UK , 2011 .

[10]  Phil Mellor,et al.  A compact, high efficiency contra-rotating generator suitable for wind turbines in the urban environment , 2010 .

[11]  David Jenkins,et al.  Micro wind turbines in the UK domestic sector , 2008 .

[12]  M. Sauturaga,et al.  Wind characteristics and power density analysis for Vadravadra site in Fiji Islands , 2009, Int. J. Model. Identif. Control..

[13]  Erich Hau,et al.  Wind Turbines: Fundamentals, Technologies, Application, Economics , 1999 .

[14]  S. Walker Building mounted wind turbines and their suitability for the urban scale—A review of methods of estimating urban wind resource , 2011 .

[15]  Hiroyuki Hirahara,et al.  Testing basic performance of a very small wind turbine designed for multi-purposes , 2005 .

[16]  Ken-ichi Abe,et al.  Experimental and numerical investigations of flow fields behind a small wind turbine with a flanged diffuser , 2005 .

[17]  R. C. Bansal ANN based reactive power control of isolated wind-diesel-micro-hydro hybrid power systems , 2009, Int. J. Model. Identif. Control..

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

[19]  Yaqiu Liu,et al.  Modelling of airflow circulation systems in wood drying processes , 2011, Int. J. Model. Identif. Control..

[20]  Masahiro Inoue,et al.  Development of a shrouded wind turbine with a flanged diffuser , 2008 .