Dual blade system wind turbine

What is a dual rotor wind turbine?

Additionally, Abdelkarim 34 investigates the aerodynamic performance of wind turbines, aiming to maximize the power extracted from the wind. The study focuses on the effect of introducing a second rotor to the main rotor of the wind turbine in what is called a dual-rotor wind turbine (DRWT).

What is a single rotor wind turbine?

A single-rotor wind turbine (SRWT), the most prevalent type of wind turbine, has a rotor with three blades and a hub at the top of the tower 4. Researchers are enhancing the efficiency of single-rotor wind turbines by enhancing blade design and enlarging rotor and tower diameters to achieve higher wind speeds 5.

What is a dual turbine?

The dual turbine concept developed by Hexicon is characterized by a floating foundation, which hosts two wind turbines with relatively close separation of 1.05D$$ 1.05D $$between the turbine rotors (hub to hub) and weathervanes around its single point mooring system located in front column, upwind of the turbines.

What are the forces on a dual turbine?

For the normal forces, the larger loads are concentrated near the blade tip at lower wind speeds, and these move toward the blade root as wind speed increases. Noticeable additional forces appear along the blade under the rated wind speeds for the dual turbine configuration, particularly in the region between the rotors.

Are two-bladed wind turbines easier to install?

Two-bladed wind turbines are also easier to install. Whereas the three-bladed rotors spinning in today’s offshore farms must be assembled on site, two-bladed rotors can be preinstalled on the turbine’s machinery onshore; the assembled package fits more conveniently on ships and is light enough to lift onto the tower.

What is the difference between single turbine and dual turbine?

The largest extra power occurs at 5-m/s wind speed, where the power increase between the dual turbines and the single turbine is 3.08% and 2.93%. 4.2 Blade loads The analysis of tangential and normal blade forces acting on the turbine rotor has been performed for the reference turbine operating in both single and dual turbine configurations.