Abstract:
A wind turbine for generating electrical energy may include a tower, a nacelle at the top of the tower, and a rotor coupled to a generator within the nacelle. The wind turbine further includes a cooler including a spoiler and at least one cooler panel projecting above a roof of the nacelle. A heliplatform includes a support structure extending from the nacelle and at least partially integrated with the cooler. The wind turbine may also include a crane coupled to the nacelle and configured to move between a first stowed position underneath the nacelle roof and a second operational position. In the operational position, the crane is selectively positionable over the heliplatform. A method of using the wind turbine and crane is also disclosed.
Abstract:
A high-pressure compressor (12), in particular in a gas turbine (10), has a compressor rotor (17) which is surrounded by a stator (18, 19) thereby forming a main flow channel (25) and which is delimited at the compressor outlet by an end face (30) substantially extending in the radial direction, along which end face cooling air (21) is conveyed in the radial direction for the purpose of cooling. A prolonged service life is achieved in that the end face (30) is provided with a first system (23, 24) for improving the heat transfer between the cooling air (21) and the end face (30).
Abstract:
An apparatus for dampening of acoustic noise generated by air-cooling of at least one wind turbine component provided with the nacelle of a wind turbine is provided. Apparatus for dampening of acoustic noise generated by air-cooling of at least one wind turbine component provided with the nacelle of a wind turbine, comprising at least one acoustic dampening means, with the acoustic dampening means including at least one acoustic dampening channel structure having at least one acoustic dampening channel connected with at least one inlet opening of the acoustic dampening channel structure and at least one outlet opening of the acoustic dampening channel structure.
Abstract:
A vertical wind power generator comprises a tower column (1), at least one generator unit (2), at least two blades (3), an excitation control device (16), a rotation rectifying device (161), a bidirectional frequency converter (15), flanges (7-13), bearings (4-6), a cooling system, a crane (80) and a lift system. The generator unit (2) comprises a bracket (201), a generator (202) and an exciter (203). The bracket (201) comprises an outer bracket (2011) and an inner bracket (2012). The generator (202) comprises a stator (2021) and a rotor (2022). The exciter (203) comprises a stator (2031) and a rotor (2032). The vertical wind power generator can be manufactured at reduced cost, be rapidly started, improve the utilization efficiency of wind power, have a better cooling effect on the generator (202) and increase its operating life, and therefore reduce maintenance cost and time.
Abstract:
In a wind turbine generating apparatus, a heat generating device is provided inside the rotor head and has a hermetically-sealed structure from outside. A rotor head cooling air passage is formed through the periphery of the heat generating device to the inside of a wind turbine blade. A cooling air introduction portion through which cooling air flows and an air outlet from which the cooling air is discharged are provided in the rotor head cooling air passage to thereby form the air outlet in the wind turbine blade.
Abstract:
A direct drive wind turbine with a cooling system has a generator with a rotor and a stator and a bearing with an inner ring and an outer ring connecting the rotor and the stator rotatively. The cooling system includes at least one heat sink which is in thermal communication with the inner ring of the bearing and a heat dissipater which is in thermal communication with the heat sink.
Abstract:
A combustor for an engine assembly includes a cylindrical wall forming a combustion chamber in which an air and fuel mixture is combusted; and a plurality of effusion cooling holes formed in the cylindrical wall, the plurality of effusion cooling holes oriented such that cooling air flowing therethrough cools the cylindrical wall with effusion cooling, convection cooling, and impingement cooling.
Abstract:
Embodiments of the invention relate to a combustor flow sleeve for a turbine engine. The flow sleeve can be configured to optimize cooling and airflow distribution. The flow sleeve can include first and second sets of openings. A first set of openings can be provided for impingement cooling the areas of the liner that are subjected to high thermal loads. The second set of openings can be provided to more evenly distribute the airflow into the combustor head-end. By focusing the cooling on the areas of need and by making the airflow more uniform, embodiments of the invention can reduce the system pressure drop and enhance the performance and power of the engine.
Abstract:
A wall structure for a gas turbine combustor arranged to have a general direction of fluid flow therethrough includes inner and outer walls defining a space therebetween. The inner wall is made up of a plurality of tiles having axial edges aligned generally with the direction of fluid flow, a gap being defined between axial edges of adjacent tiles. Orifices are provided within the axial edges to direct leakage air passing through the gaps to give the leakage air a flow component in the general direction of fluid flow through the combustor.
Abstract:
A wall structure for a wall bounding a combustion chamber of a gas turbine engine is disclosed having a first wall with an inner surface facing towards the interior of the combustion chamber and an outer surface facing away from the interior of the combustion chamber such that the inner surface forms a boundary of the combustion chamber and the outer surface has a surface roughness to prevent the formation of a fluid flow cooling layer which would cool the outer surface. The invention also has a second wall spaced from the outer surface of the first wall in a direction away from the interior of the combustion chamber so as to define a cooling fluid circulatory space between the first and second walls. A plurality of first perforations extend through the first wall in communication with the cooling fluid circulatory space to enable passage of cooling fluid from the space through the first perforations to form a cooling fluid film on the inner surface of the first wall.