A jointed wind turbine rotor blade includes a first blade segment and a second blade segment. A chord-wise joint separates the first and second blade segments, wherein internal joint structure joins the first and second blade segments across the chord-wise joint. A first heating system is configured within the first blade segment, and a second heating system is configured within the second blade segment. A disconnectable coupling is configured between the first and second blade segments at the chord-wise joint to supply power or a fluid medium from the first blade segment across the chord-wise joint for use by the second heating system in the second blade segment.

A wind turbine cooling system, a wind turbine with the cooling system, and a method for testing the cooling system are provided. The cooling system includes a radiator assembly and a nacelle. The nacelle includes a housing rotatably connected with the radiator assembly. The cooling system is configured to thermally couple the radiator assembly to a heat source inside the nacelle. The radiator assembly is moveable between a first position and a second position. When in the first position, the radiator assembly extends away from an upper roof of the housing of the nacelle. When in the second position, the radiator assembly is contained inside the housing of the nacelle.

A cooling system and a wind-driven generator system. The cooling system comprising: a first cooling loop, a second cooling loop, a third cooling loop, a first heat exchanger and a second heat exchanger, wherein the first cooling loop comprises a first fluid pipeline and a first pump set; the second cooling loop comprises a second fluid pipeline and a second pump set, and the second fluid pipeline comprises a main path and a bypass; the third cooling loop comprises a third fluid pipeline and a third pump set, and the third fluid pipeline communicates with both the first heat exchanger and the second heat exchanger; the first heat exchanger is configured to thermally couple the first cooling medium, the second cooling medium and the third cooling medium to one another; the second heat exchanger is configured to thermally couple the second cooling medium to the third cooling medium.

An apparatus for monitoring an ambient environment of a wind turbine is described. The apparatus comprises a cooling system comprising first and second heat exchangers, and a fluid circuit arranged to enable coolant to flow between the first and second heat exchangers. The apparatus further comprises a processor configured to: monitor one or more operational parameters of the cooling system; determine an efficiency of the cooling system based on the monitored one or more operational parameters; and calculate a liquid water content of the ambient environment based on the measured efficiency of the cooling system.

Wind turbine blades with de-icing and/or anti-icing systems including at least one heating unit disposed along the blade's length and between the blade's chord, wherein each heating unit in turn comprises a plurality of heating elements connected both in series and in parallel in a matrix configuration by overlaps or cross-adjacent junctions between adjacent heating elements order to change the electric heating current flow disposing of any additional terminals cables and further enabling to generate a gradually increasing heat flux from the blade root towards the blade tip and from the trailing edge towards the leading edge through each individual heating unit adapting accurately to heat flux demand and hence reducing energy consumption for de-icing and/or anti-icing.

The energy conversion device 1 consists of a liquid tank 11 in which liquid 10 is stored, a plurality of gas receiving sections 12 that are installed vertically in the liquid tank 11 and can rotate or move vertically. The energy conversion device 1 consists of a liquid tank 11 in which liquid 10 is stored, multiple gas receiving sections 12 installed vertically in the liquid tank 11 that can be rotated or moved vertically, nozzles 13 that blow compressed gas from below the gas receiving section 12 located at the bottom in the liquid tank 11, and nozzles 14 that store compressed gas as a primary energy source and blow compressed gas from below the gas receiving section 12. In the liquid tank 11, there is a nozzle 13 that ejects compressed gas from below the gas receiving section 12 located at the bottom, a gas cylinder 14 that stores compressed gas as a primary energy source and delivers compressed gas to the nozzle 13, and a gas receiving section 12 that receives compressed gas from the nozzle 13. The gas receiving section 12 receives compressed gas ejected from the nozzle 13, and the buoyancy force generated in the gas receiving section 1 2 by the buoyancy force generated when the gas receiving section 12 receives compressed gas from the nozzle 13, and the output means 3 that outputs the kinetic energy of rotation or upward movement to the outside of the liquid tank 11 as secondary energy. 1 1, and a recovery device 4 that returns the gas from the liquid tank 1 1 to the gas cylinder 14.

A convector for cooling a microprocessor includes a volute-shaped housing, a stator, and a rotor, and can be mounted to a CPU board of a computing device for thermal coupling with the microprocessor. The volute-shaped housing of the convector encapsulates the stator and the rotor, and has a radially outer casing which defines a single exit port for guiding a fluid out of the housing. The stator has a plurality of plates configured to conduct heat. The rotor has a plurality of disks and a shaft extending longitudinally along the housing. Together, the housing, the stator, and the rotor define a spiral flow path through the volute-shaped housing, in both radially outward and longitudinal directions, to the single exit port. A motor may be provided to impart rotational motion to the rotor.

A wind turbine, including a main gear box, which is lubricated and/or cooled by oil, and a thermosiphon cooling system for cooling the oil is provided. The thermosiphon cooling system solves the main challenges facing the oil cooling systems in wind turbines. The high efficiency of the evaporation heat transfer mechanism gives the capacity to transfer the required heat load in relatively smaller size system. In this way, installation space is reduced. The thermosiphon cooling system has no service requirements over the lifetime of the wind turbine since the thermosiphon cooling system has no moving parts. Costs are saved since the simplicity of the thermosiphon cooling system adds a big value to the system business case.

An assembly includes a transformer tank that is arranged in a nacelle of a wind turbine, wherein the transformer tank is configured to be filled with a gas or a liquid to cool the active part of the transformer and the active part is enclosed by the transformer tank in a liquid-tight or gas-tight manner, such that use of the transformer tank as a reinforcement or a bracing of the steel construction of the nacelle with as little additional material expenditure as possible for the transformer is facilitated by integrating the transformer tank into the mechanical support structure of the nacelle such that the transformer tank forms a part of the mechanical support structure of the nacelle and by providing at least one bracing in the interior of the transformer tank, where bracing connects mutually opposing wall regions of the transformer tank.

A hollow structural element of a wind energy plant, in particular an offshore wind energy plant which includes a hollow structural element, and a cable arrangement extending along the hollow structural element. A shading element is arranged on the hollow structural element at a distance from the cable arrangement.