A manifold for a heat exchanger for a motor vehicle that includes a tubular wall and at least one separating partition partitioning the manifold. The tubular wall may have at least one slot formed over a portion of the tubular wall's cross section and may allow for the insertion of said separating partition. The separating partition may include an internal part inserted into the tubular wall, and the internal part may have a periphery with a first portion and a second portion situated facing the tubular wall. The second portion may be adjacent to at least one deformation of the tubular wall, such that an internal cross section of the tubular wall corresponds to the perimeter of the partition along the second portion.

A manifold for a heat exchanger for a motor vehicle that includes a tubular wall and at least one separating partition partitioning the manifold. The tubular wall may have at least one slot formed over a portion of the tubular wall's cross section and may allow for the insertion of said separating partition. The separating partition may include an internal part inserted into the tubular wall, and the internal part may have a periphery with a first portion and a second portion situated facing the tubular wall. The second portion may be adjacent to at least one deformation of the tubular wall, such that an internal cross section of the tubular wall corresponds to the perimeter of the partition along the second portion.

In the case of a method for the heat treatment of erected, preferably large-area tube wall regions or tube wall segments, in particular of a diaphragm wall, of a steam generator, in particular of a power plant, in the installed state, it is sought to provide a solution which permits the use of steel types which are more problematic with regard to power plant operation with elevated steam parameters, in particular the steels T23 and T24, in the erection of steam generators. This is achieved in that the tube wall regions or tube wall segments for heat treatment are subjected, in the installed state in the steam generator, and in particular over a large area, to a stress-relief annealing process.

An air intake separator system includes a plurality of vanes adapted to remove fluid or precipitation from an air stream, wherein the vanes are operably coupled to tubular rods with an interference fit. Applying an elevated temperature heat transfer fluid to the plurality of vanes removes fluid or precipitation from an air stream in order to prevent ice formation. Likewise, applying a lower temperature heat transfer fluid can cool the vanes.

A method for manufacturing a heat exchanger includes preparing heat exchange tubes by using an aluminum extrudate made of an alloy containing Mn (0.1 to 0.3 mass %), and Cu (0.4 to 0.5 mass %), the balance being Al and unavoidable impurities; preparing fins by using an aluminum bare material made of an alloy containing Mn (1.0 to 1.5 mass %) and Zn (1.2 to 1.8 mass %), the balance being Al and unavoidable impurities; causing Zn, Si, and flux powders to adhere to the outer surfaces of the heat exchange tubes such that the Zn powder adhesion amount becomes 2 to 3 g/m.sup.2, the Si powder adhesion amount becomes 3 to 6 g/m.sup.2, and the flux powder adhesion amount becomes 6 to 24 g/m.sup.2; and brazing the heat exchange tubes and the fins together by utilizing the Si powder and the flux powder adhered to the outer surfaces of the heat exchange tubes.

A manufacturing apparatus for heat dissipation fins can stably operate a stacker apparatus when stacking and collecting heat dissipation fins. Drop guide blades are provided above a holding apparatus for the heat dissipation fins disposed downstream of a cutoff apparatus that cuts a heat dissipation fin molding formed by a press apparatus into heat dissipation fins. When a stacker apparatus receives a heat dissipation fin from the holding apparatus, the drop guide blades approach the stacker apparatus and the heat dissipation fin is stacked and collected in the stacker apparatus by dropping to the stacker apparatus while being guided by the drop guide blades. After collecting the heat dissipation fins, only lowering operations of the stacker apparatus are performed.

A manufacturing apparatus for heat dissipation fins can stably operate a stacker apparatus when stacking and collecting heat dissipation fins. Drop guide blades are provided above a holding apparatus for the heat dissipation fins disposed downstream of a cutoff apparatus that cuts a heat dissipation fin molding formed by a press apparatus into heat dissipation fins. When a stacker apparatus receives a heat dissipation fin from the holding apparatus, the drop guide blades approach the stacker apparatus and the heat dissipation fin is stacked and collected in the stacker apparatus by dropping to the stacker apparatus while being guided by the drop guide blades. After collecting the heat dissipation fins, only lowering operations of the stacker apparatus are performed.

A tubeless heat exchanger for heating a production fluid disposed in a vessel, including: a tubeless heat exchanger core disposed at least partially within the vessel, the tubeless heat exchanger core comprising an inner casing and an outer casing disposed around the inner casing, the inner and outer casings defining therebetween a flow passage for a thermal transfer fluid to flow, the tubeless heat exchanger core further comprising a core inlet arranged to receive the thermal transfer fluid and a core outlet arranged to provide the thermal transfer fluid, the core inlet and core outlet being fluidically connected to the flow passage, wherein each of the outer casing and the inner casing has an inner surface and an outer surface, wherein the respective inner surfaces face each other and define therebetween the flow passage for the thermal transfer fluid to flow and wherein at least a portion of the respective outer surfaces are arranged to be contacted by the production fluid, wherein the flow passage defines a path comprising at least one pass around a perimeter of the heat exchanger core, and wherein, in use, the thermal transfer fluid in the heat exchanger core transfers heat from the thermal transfer fluid to the production fluid through at least a portion of both the inner and outer casings.

A tubeless heat exchanger for heating a production fluid disposed in a vessel, including: a tubeless heat exchanger core disposed at least partially within the vessel, the tubeless heat exchanger core comprising an inner casing and an outer casing disposed around the inner casing, the inner and outer casings defining therebetween a flow passage for a thermal transfer fluid to flow, the tubeless heat exchanger core further comprising a core inlet arranged to receive the thermal transfer fluid and a core outlet arranged to provide the thermal transfer fluid, the core inlet and core outlet being fluidically connected to the flow passage, wherein each of the outer casing and the inner casing has an inner surface and an outer surface, wherein the respective inner surfaces face each other and define therebetween the flow passage for the thermal transfer fluid to flow and wherein at least a portion of the respective outer surfaces are arranged to be contacted by the production fluid, wherein the flow passage defines a path comprising at least one pass around a perimeter of the heat exchanger core, and wherein, in use, the thermal transfer fluid in the heat exchanger core transfers heat from the thermal transfer fluid to the production fluid through at least a portion of both the inner and outer casings.

A heat exchanger includes plural heat transfer tubes and plural fins each having two opposing sides and plural opening ports on one side, of the two sides, for inserting and fastening the heat transfer tubes, and the heat exchanger is formed such that the plural heat transfer tubes and the plural fins cross each other, wherein at least two of the plural heat transfer tubes are fastened to the opening ports in a state of protruding from the one sides of the plural fins toward the outside of the plural fins.