9 results about "Tip-speed ratio" patented technology

The tip-speed ratio, λ, or TSR for wind turbines is the ratio between the tangential speed of the tip of a blade and the actual speed of the wind, v. The tip-speed ratio is related to efficiency, with the optimum varying with blade design. Higher tip speeds result in higher noise levels and require stronger blades due to larger centrifugal forces. λ=(tip speed of blade)/(wind speed) The tip speed of the blade can be calculated as ω times R, where ω is the rotational speed of the rotor in radians/second, and R is the rotor radius in metres.