Abstract: A closed cooling system for cooling a fluid of an open fluid system including a first heat exchanger and a compressor facilitating circulation of a refrigerant in the closed cooling system, where the refrigerant facilitates providing a solid state cooling bank which is thermally coupled to the open fluid system thereby cooling fluid conducted through the open fluid system.

Abstract: A hydrogen refueling system including a hydrogen center enclosure fluidly connected to a dispenser by a supply pipe, a first portion of the supply pipe disposed within the hydrogen center enclosure and a second portion of the supply pipe extending between the hydrogen center enclosure and the dispenser, a cooling system having a first cooling circuit for cooling the supply pipe and a second cooling circuit for cooling the second portion of the supply pipe, and a controller, where the second cooling circuit has a return path fluidly connected to a forward path, where the second cooling circuit is thermally connected to the second portion of the supply pipe, and the controller initiates cooling of the supply line by the forward path or return path of the second cooling circuit when the temperature of the supply line is higher than a threshold value.

Abstract: A mold for forming a wind turbine blade is formed in two halves, each half 1a comprising a sandwich structure of a perforated outer layer, an inner aluminum honeycomb structure and an inner impermeable heat-conducting layer. An article in the form of a mat of glass fiber impregnated with epoxy resin is placed in the mold. A supply chamber 6 supplies heated pressurized air to the mold which passes into the honeycomb core of the mold through the perforated outer layer, and back through the outer layer into two exhaust chambers 7. A row of supply conduits 13 and exhaust conduits 16 connect the exhaust chambers 7 to the supply chamber 6. The air in each conduit 13, 16 is heated by a respective heat exchanger 18 supplied with heated water 9. The heated air cures the epoxy resin, and the mold is then cooled by supplying cold water to the heat exchangers 18, which, in turn cools the air supplied to the mold.

Abstract: The invention relates to a high pressure diaphragm compressor for pressurizing a gaseous fluid to a pressure of at least 10 MPa, the compressor including a compressor head having an oblong shaped chamber.

Abstract: A closed cooling system for cooling a fluid of an open fluid system including a first heat exchanger and a compressor facilitating circulation of a refrigerant in the closed cooling system, where the refrigerant facilitates providing a solid state cooling bank which is thermally coupled to the open fluid system thereby cooling fluid conducted through the open fluid system.

Abstract: A fixing device for fixating a segment of a wind turbine blade to a mold in which the blade segment is manufactured, wherein the blade segment has a fixating portion. The fixing device comprises: a first portion for removably fixating the blade segment at its fixating portion to the mold; and a second portion for fixating the fixing device to the mold.

Abstract: a hydrogen refueling system for refueling a vehicle with hydrogen. The system comprises a hydrogen supply, a hydrogen center enclosure comprising a cooling system. The cooling system is arranged for cooling the hydrogen delivered to the vehicle. The system further comprises a dispenser arranged for supplying the hydrogen to the vessel of the vehicle. A supply pipe is arranged for guiding the hydrogen from the center enclosure to the dispenser. The system further comprises a forward path arranged for guiding a supply pipe cooling media from the hydrogen center enclosure towards the dispenser, and a return path arranged for guiding at least a fraction of the supply pipe cooling media back to the hydrogen center enclosure, where at least one of the forward and return paths are thermally connected with the cooling system.

Abstract: The present invention relates to a method of manufacturing a wind turbine blade having a first member with a first joining surface and a second member with a second joining surface. The method includes applying at least one resin barrier to one or both of the joining surfaces, and subsequently locating the first and the second members adjacent each other so that they are joined by the at least one resin barrier. Hereby at least one cavity is formed between the first and second joining surfaces, which cavity is delimited by the at least one resin barrier. Subsequently resin is filled into the at least one cavity, and the resin is cured. The first member may be a blade shell, and the second member may be a blade spar.

Abstract: A bracket is described for clamping a mould to a supporting structure. The bracket includes a first part and a second part for attaching to the mould and to the supporting structure, respectively, or vice versa. The first and second parts are connected together and configured to provide constrained relative movement along a first axis to accommodate thermal expansion of the mould relative to the supporting structure in a first direction parallel to the first axis. The first and second parts of the bracket are connected via an articulated joint that allows the first and second parts to pivot relative to one another without moving the first axis such that the bracket can independently accommodate misalignments between the mould and the supporting structure.

Abstract: A fixing device for fixating a segment of a wind turbine blade to a mold in which the blade segment is manufactured, wherein the blade segment has a fixating portion. The fixing device comprises: a first portion for removably fixating the blade segment at its fixating portion to the mold; and a second portion for fixating the fixing device to the mold.

Abstract: A fixing device for fixating a segment of a wind turbine blade to a mold in which the blade segment is manufactured, wherein the blade segment has a fixating portion. The fixing device comprises: a first portion for removably fixating the blade segment at its fixating portion to the mold; and a second portion for fixating the fixing device to the mold.

Abstract: A mould for forming a wind turbine blade is formed in two halves, each half 1a comprising a sandwich structure of a perforated outer layer, an inner aluminium honeycomb structure and an inner impermeable heat-conducting layer. An article in the form of a mat of glass fibre impregnated with epoxy resin is placed in the mould. A supply chamber 6 supplies heated pressurised air to the mould which passes into the honeycomb core of the mould through the perforated outer layer, and back through the outer layer into two exhaust chambers 7. A row of supply conduits 13 and exhaust conduits 16 connect the exhaust chambers 7 to the supply chamber 6. The air in each conduit 13, 16 is heated by a respective heat exchanger 18 supplied with heated water 9. The heated air cures the epoxy resin, and the mould is then cooled by supplying cold water to the heat exchangers 18, which, in turn cools the air supplied to the mould.

Abstract: A method is disclosed for determining the start pressure within a gas tank (4) to be refueled, said method comprising the steps of connecting the gas tank (4) to a dispenser volume (3) of a dispenser unit (3, 5-7, 10, 11), which volume (3) is significantly smaller than the volume of the gas tank (4) to be refueled, applying a pressure to the gas in the dispenser volume (3), which pressure is equal to or higher than the pressure within the gas tank (4), so that gas start to flow from the dispenser volume (3) into the gas tank (4) through a check valve (9), which is a part of the gas tank (4), and determining the start pressure by measuring the pressure at the interface (8) between the dispenser unit (3, 5-7, 10, 11) and the gas tank (4).

Abstract: A bracket is described for clamping a mould to a supporting structure. The bracket includes a first part and a second part for attaching to the mould and to the supporting structure, respectively, or vice versa. The first and second parts are connected together and configured to provide constrained relative movement along a first axis to accommodate thermal expansion of the mould relative to the supporting structure in a first direction parallel to the first axis. The first and second parts of the bracket are connected via an articulated joint that allows the first and second parts to pivot relative to one another without moving the first axis such that the bracket can independently accommodate misalignments between the mould and the supporting structure.

Abstract: Within the field of wind turbine generators (WTG), to provide a consistent way of manufacturing a WT blade there is disclosed a blade mould and a blade spar fixture to support the spar in the mould so as to provide a fixed predetermined relative position, and preferably also orientation, between at least a root end, such as a bushing in the root end of the blade spar, and a root end of the mould. Overall consistency is also obtained in that hereby a blade with anticipated aerodynamic and strength characteristics is provided, among others in that at least adjacent to the root of the spar there is substantially the same distance for a cured adhesive between an innermost surface of each of blade shells and an outermost surface of the spar.

Abstract: A method for making a mould for a part of a wind turbine rotor blade to be moulded in the mould, the method comprises determining whether a geometrical property of the mould is within an acceptable limit; and if the determined geometrical property is not within the acceptable limit adjusting the mould so as to bring the geometrical property to be within the acceptable limit. The mould needs not be manufactured to the final and narrow tolerances required for making wind turbine generator rotor blades, but adjustment to desired geometrical properties can be carried out according to determined geometrical properties and desired tolerances. This ensures that rotor blades can be produced with desired geometrical and aerodynamic properties and with narrow tolerances. Also, the mould can be made lighter whereby it will be less costly and easier to move and to manipulate.

Abstract: The present invention relates to a method of manufacturing a wind turbine blade 1 having a first member 2 with a first joining surface and a second member 3 with a second joining surface. The method comprises applying at least one resin barrier 4,4a to one or both of the joining surfaces, and subsequently locating the first and the second members 2,3 adjacent each other so that they are joined by the at least one resin barrier 4,4a. Hereby at least one cavity is formed between the first and second joining surfaces, which cavity is delimited by the at least one resin barrier 4,4a. Subsequently resin 5 is filled into the at least one cavity, and the resin 5 is cured. In a preferred embodiment of the invention the first member 2 is a blade shell, and the second member is a blade spar 3. The invention further relates to a wind turbine blade 1 manufactured by such a method and to a wind turbine comprising such a wind turbine blade 1.

Abstract: A wind turbine blade manufacturing arrangement includes a first mould and a second mould connected by a hinge mechanism and presenting respective elongated first and second moulding surfaces. The first mould is adapted to be rotated from an open mould position to a mould closing position by means of the hinge mechanism in a first and a second rotation step. The hinge mechanism is arranged so as to provide for, during at least a part of the first rotation step, the first mould undergoing a combined rotational and a translational movement.

Abstract: A fixing device for fixating a segment of a wind turbine blade to a mold in which the blade segment is manufactured, wherein the blade segment has a fixating portion. The fixing device comprises: a first portion for removably fixating the blade segment at its fixating portion to the mold; and a second portion for fixating the fixing device to the mold.

Abstract: Within the field of wind turbine generators (WTG), to provide a consistent way of manufacturing a WT blade there is disclosed a blade mould and a blade spar fixture to support the spar in the mould so as to provide a fixed predetermined relative position, and preferably also orientation, between at least a root end, such as a bushing in the root end of the blade spar, and a root end of the mould. Overall consistency is also obtained in that hereby a blade with anticipated aerodynamic and strength characteristics is provided, among others in that at least adjacent to the root of the spar there is substantially the same distance for a cured adhesive between an innermost surface of each of blade shells and an outermost surface of the spar.