Siemens Aktiengesellschaft

Jens Jørgen Østergaard Kristensen

Peder Bay Enevoldsen

Kaj Olsen

Carsten Thrue

Henrik Stiesdal

Claus Burchardt

Jason Stege

Erik Grove-Nielsen

A spoiler for a rotor blade includes a base member, which base member has a mounting face for mounting onto a surface of the rotor blade, and an aerodynamic member for detachably connecting onto the base member. Further, a wind turbine includes a number of rotor blades attached to a hub, wherein at least one rotor blade has such a spoiler mounted on a surface strip of the rotor blade. Also, a method of constructing a wind turbine is provided. A rotor blade is manufactured. A base member of the spoiler is mounted onto the rotor blade. The rotor blade is connected to a hub of the wind turbine. An aerodynamic member of the spoiler is attached onto the base member, wherein at least the mounting of the base member onto the rotor blade is performed prior to the connecting of the rotor blade to the hub.

Spoiler for a wind turbine blade

A wind turbine rotor blade element includes a first portion and a second portion connected to each other is described. The first portion includes a rear surface for facing a surface of a wind turbine rotor blade and the second portion includes a top surface which includes an angle between 90&#xb0; and 180&#xb0; with the rear surface of the first portion.

Wind turbine rotor blade element and wind turbine rotor blade

An arrangement for reducing noise which is generated by a wind turbine blade is provided. The wind turbine blade has a first panel and a second panel. The first and the second panel are arranged at a trailing edge of the wind turbine blade, wherein the first panel is adjacent to the second panel. The first panel includes a first transition zone and the second panel includes a second transition zone. The first transition zone and the second transition zone are engaged in a way that whistle tones produced by a gap of the wind turbine blade, the gap being located between the first panel and the second panel, is reduced or even avoided.

Arrangement to reduce noise originated by a wind turbine blade

A method is provided for manufacturing a wind turbine rotor blade in which the blade is formed as a laminated structure by laying a composite material of fibre reinforcement material and/or core material in a mould defining the shape of the blade; evacuating the mould after laying the composite material; introducing a liquid polymer into the evacuated mould and wetting the composite material; curing the liquid polymer after the composite material has been wetted; and removing the mould after curing the liquid. At least one lightning conductor is integrated into the composite material before wetting it with the liquid polymer. Moreover, a wind turbine rotor blade made from a single laminated structure is provided with at least one lightning conductor is integrated into the laminated structure.

Wind turbine blade with an integrated lightning conductor

A method is provided for manufacturing a wind turbine rotor blade in which the blade is formed as a laminated structure by laying a composite material of fiber reinforcement material and/or core material in a mold defining the shape of the blade; evacuating the mold after laying the composite material; introducing a liquid polymer into the evacuated mold and wetting the composite material; curing the liquid polymer after the composite material has been wetted; and removing the mold after curing the liquid. At least one lightning conductor is integrated into the composite material before wetting it with the liquid polymer. Moreover, a wind turbine rotor blade made from a single laminated structure is provided with at least one lightning conductor is integrated into the laminated structure.

Method for manufacturing wind turbine blade with an integrated lightning conductor

A crack detection system and a method for detecting cracks in a loaded engineering structure are provided. The system and method include a light source coupled and optical fibers that are led through the structure. The optical fibers have diameters below 75 &#x3bc;m. The light source is coupled to the optical fibers.

Growing community of inventors

Nibe, Denmark

Jens Jørgen Østergaard Kristensen