Vertical axis wind turbine blade production

Can a vertical axis wind turbine design improve energy extraction capability?

This study proposes a novel vertical axis wind turbine (VAWT) design with flexible blades aiming to improve their energy extraction capability. The blade deformation is achieved using Ansys Fluent dynamic mesh and user-defined functions to control the position of the blades nodes at specific azimuthal angles.

What is a vertical axis wind turbine?

The Vertical axis wind turbine model used in this study is based on the rotor specifications of Li et al. wind tunnel experiments. The straight-bladed H-rotor VAWT consists of two symmetrical NACA 0021 blades with a chord length of 265 mm and a blade pitch angle of 6 degrees.

What is a drag-based vertical axis wind turbine (VAWT)?

Figures from Savonius’ patent illustrating his drag-based Vertical Axis Wind Turbine (VAWT) design . An improvement in power production can be achieved through blades that produce positive torque during the entirety of the blade revolution. This design is known as a “lift” based VAWT.

Do vertical axis wind turbines have a yaw mechanism?

Vertical-axis wind turbines (VAWTs) are receiving more and more attention as they involve simple design, cope better with turbulence, and are insensitive to wind direction, which has a huge impact on their cost since a yaw mechanism is not needed. However, VAWTs still suffer from low conversion efficiency.

How can a vertical-axis wind turbine design be optimized?

This paper introduces an optimization approach for the uniform blade structure design used in the vertical-axis wind turbine. The blade cost represents 20% of the turbine overall cost, and inertia load is the dominating design load. This approach aims to optimize the weight and the cost while maintaining structural integrity.

How much energy does a vertical axis wind turbine produce?

Vertical axis wind turbine was designed, simulated, and analyzed. Four Savonius rotors blades rotational performances were compared. MATLAB simulation was used to develop an algorithm. The new turbine has the capability of producing an annual energy output of 7838 kWh. The annual electricity cost/saving in Ontario has been estimated to be $846.51.