The disclosure relates to a heat transfer assembly for a rotary regenerative heat exchanger. The assembly includes a rotor arranged between at least two separated fluid flow passages passing flow axially through the rotor, where each flow passage is connected to a sector part of the rotor. The assembly further includes a plurality of channels in the rotor for flowing a fluid through the rotor, each of the channels is enclosed by heat transfer and heat accumulating surfaces in the rotor, and the heat transfer and heat accumulating surfaces of the channels are made in a material providing an average axial thermal conductivity less than 100 W/mK arranged to reduce the Longitudinal Heat Conductivity of the rotor.

A cooling system including a first sheet steel item having a first surface configured to accommodate one or more objects to be cooled, and a second surface joined to a first surface of a second sheet steel item forming a shell. The items may be joined by a weld, a rivet or a plurality thereof. At least one of the second surface of the first sheet steel item and the first surface of the second sheet steel item may be formed to produce one or more conduits for forming one or more channels, whereby said joining forms said channels for coolant in a space between the second surface of the first sheet steel item and the first surface of the second sheet steel item.

The invention relates to a plate heat exchanger for a process engineering plant, comprising a heat exchanger block which has a plurality of alternatingly arranged heating surface elements and separating plates, wherein the separating plates are soldered to the heating surface elements with the aid of solder layers provided at the separating plates, and wherein, in at least a part of the separating plates, the solder layers comprise at least two soldered areas that differ in terms of the alloy composition thereof.

A transition component for connecting components of a chemical or process engineering plant, wherein the transition component has a first material piece made from a first material and second material piece made from a second material, wherein the first material and the second material cannot be connected to each other by fusion welding, the first material piece and the second material piece forming a hollow body, the transition component having a radially interior inner side and a radially exterior outer side, the first material piece being connected to the second material piece by at least one intermediate material layer and the transition component having at least one insulation layer, wherein the insulation layer extends at least in part over the inner side and/or the outer side of the transition component, and a core-in-shell heat exchanger and a cold box having the transition component.

In a metal fiber molded body (40), a ratio, to a presence ratio of metal fibers in a first cross-section, of a presence ratio of metal fibers in a second cross-section orthogonal to the first cross-section is in a range of 0.85 to 1.15. A method for manufacturing the metal fiber molded body (40) according to the present invention includes the steps of: accumulating a plurality of short metal fibers (30) on a receiving part; and sintering the plurality of short metal fibers (30) accumulated on the receiving part, to produce the metal fiber molded body (40).

A finned tube having a tube main body, on the outside of which, in particular separate or integral, fins are arranged, preferably circumferentially, wherein the fins and/or the tube main body are of a multi-layer material.

An outer finned tube includes a tube body, an outer wall of the tube body is provided with outer fins spirally arranged in an extension direction of the tube body; grid fins are arranged between two adjacent spiral parts of the outer fins correspondingly; two ends of each grid fin are connected to the two adjacent spiral parts of the corresponding outer fin respectively; a gap is kept between each grid fin and the outer wall of the tube body; and the plurality of grid fins are spaced in the extension direction of the tube body. An enhancing cavity is formed in an area defined by the outer wall of the tube body, inner walls of the grid fins and the outer fins in an encircling way, which can form a larger degree of superheat, provides a nucleation point for a boiling/condensation process and improves a heat exchange performance.

A plate heat exchanger with two heat exchange plates forming a channel system between the heat exchange plates, the channel system being sealed by a sealing member. The channel system includes a support member, the support member is arranged at a distance from the sealing member and a support member material is different from a material of a heat exchange plate.

A plate heat exchanger with two heat exchange plates forming a channel system between the heat exchange plates, the channel system being sealed by a sealing member. The channel system includes a support member, the support member is arranged at a distance from the sealing member and a support member material is different from a material of a heat exchange plate.

A heat exchange module, a heat exchanger and a method for additively manufacturing the heat exchanger are provided. The heat exchanger includes a plurality of stacked heat exchange modules defining a flow passageway. Each heat exchange module defining a substantially curved closed geometry defining a central axis that extends along the axial direction. Each heat exchange module includes a first heat exchanging fluid inlet, a first heat exchanging fluid outlet and a plurality of heat exchange tubes fluidly coupling the first heat exchanging fluid inlet and the first heat exchanging fluid outlet. The plurality of heat exchange tubes defining a plurality of first heat exchanging fluid flow passages of equal length and a plurality of second heat exchanging fluid flow passages of equal hydraulic diameter.