Wind Turbine Design: With Emphasis on Darrieus Concept
The depletion of global fossil fuel reserves combined with mounting environmental concerns has served to focus attention on the development of ecologically compatible and renewable alternative sources of energy. Wind energy, with its impressive growth rate of 40% over the last five years, is the fastest growing alternate source of energy in the world since its purely economic potential is complemented by its great positive environmental impact. The wind turbine, whether it may be a Horizontal Axis Wind Turbine (HAWT) or a Vertical Axis Wind Turbine (VAWT), offers a practical way to convert the wind energy into electrical or mechanical energy. Although this book focuses on the aerodynamic design and performance of VAWTs based on the Darrieus concept, it also discusses the comparison between HAWTs and VAWTs, future trends in design and the inherent socio-economic and environmental friendly aspects of wind energy as an alternate source of energy.
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aerodynamic aerodynamic loads aerodynamic performance aerodynamic torque airfoil section angle of attack azimuthal angle blade element blade section boundary layer calculated Canada CARDAAV catenary Cebeci-Smith model chord component cost curve Darrieus motion Darrieus rotor Darrieus turbine Darrieus wind turbine developed diameter double-multiple streamtube model drag coefficient dynamic stall eddy viscosity electricity equation equatorial experimental data Figure flow FloWind freestream function geometry Gormont's model HAWTs Indal induced velocity installed interference factor Johnson-King model laminar machine Magdalen Islands measurements multiple streamtube NACA nondimensionalized normal force normal force coefficient obtained operating parameter Paraschivoiu power output predicted pressure Reynolds number rotational speed Sandia 17-m Sandia National Laboratories Savonius rotor simulation solidity streamwise Strickland struts swept area tangential force coefficient tip-speed ratio torque turbulence models unsteady upwind and downwind variable VAWT Vertical-Axis Wind Turbine vorticity wake wind energy wind power wind speed wind tunnel