A counter-flow fin plate heat exchanger for gas-to-gas heat exchange includes several outer channel fins, an outer channel bending plate, an inner channel fin and an inner channel bending plate. The outer channel bending plate is a flat plate with two sides bending upward vertically. The inner channel bending plate is a cuboid box without a cap on the top, and the top of the inner channel bending plate is hermetically fixed with the bottom of the outer channel bending plate. The several outer channel fins are arranged in parallel inside the outer channel bending plate. The inner channel fins are arranged inside the inner channel bending plate. Ends of a side surface corresponding to two long sides of the inner channel bending plate are respectively provided with an opening, and the two openings are respectively disposed at different ends of the two side surfaces.

A hot layer adapted for use in an asymmetric cross counter flow heat exchanger core that includes a number of alternating hot and cold layers, a hot inlet tent configured to receive a hot inlet flow and defining a hot inlet tent width, and a hot outlet tent configured to discharge a hot outlet flow and defining a hot outlet tent width. A hot inlet closure bar is located adjacent to the hot inlet tent, a hot outlet closure bar is located adjacent to the hot outlet tent, and two hot side closure bars are each located adjacent to respective corresponding inlet and outlet hot fins. An angle between the inlet fin direction and the middle fin direction ranges from 5-175 degrees, and the hot inlet tent width is less than the hot outlet tent width.

Systems and methods for providing a fin structure. The fin structure may be employed in a heat exchanger. The fin structure comprises: a support structure; and a plurality of fins disposed on the support structure via additive manufacturing so as to facilitate a change in direction of a fluid flowing through the fin structure. The fins comprise first fins that have centers arranged in accordance with a phyllotaxis or Fibonacci pattern.

A counter-flow fin plate heat exchanger for gas-to-gas heat exchange includes several outer channel fins, an outer channel bending plate, an inner channel fin and an inner channel bending plate. The outer channel bending plate is a flat plate with two sides bending upward vertically. The inner channel bending plate is a cuboid box without a cap on the top, and the top of the inner channel bending plate is hermetically fixed with the bottom of the outer channel bending plate. The several outer channel fins are arranged in parallel inside the outer channel bending plate. The inner channel fins are arranged inside the inner channel bending plate. Ends of a side surface corresponding to two long sides of the inner channel bending plate are respectively provided with an opening, and the two openings are respectively disposed at different ends of the two side surfaces.

The invention relates to a cross-flow plate heat and/or moisture exchanger having plates which are arranged above, below or next to one another, and form alternating flow passages for a first and a second fluid. According to the invention, for a cross-flow plate heat and/or moisture exchanger of this type, in order to achieve an improved transfer performance and an increased pressure stability in relation to differential pressures between the two fluids, each plate (2) has a first cross-flow region (4), a following counter flow region (6) in the flow direction of the first cross-flow region (4), and a following second cross-flow region (10) in the flow direction of the counter flow region (6). The cross-flow regions (4, 10) of neighbouring plates are to form flow channels (5, 11) running approximately perpendicular to one another, wherein the counter flow regions (6) of neighbouring plates form counter flow channels (7) running approximately parallel to one another and the first or second cross-flow region (4, 10) of each plate (2) corresponds to the second or first cross-flow region of each neighbouring plate in terms of the dimensions thereof, and is arranged above, below or next to same, and wherein the counter flow region (6) of each plate (2) corresponds to the counter flow region of each neighbouring plate (3) in terms of the dimensions thereof, and is arranged above, below or next to same.

A cold plate includes a main body in contact with a heat source. The main body has: an inflow hole through which a refrigerant flows in; an outflow hole through which the refrigerant flows out; and an internal space communicating with the inflow hole and the outflow hole and through which the refrigerant flows, and includes: a first heat exchange layer in the internal space; and a second heat exchange layer in the internal space. The first heat exchange layer and the second heat exchange layer are laminated in a thickness direction of the first heat exchange layer and of the second heat exchange layer.

A heat exchanger is provided that may include at least one refrigerant tube having a plurality of tube channels; a plurality of headers provided at both sides of the at least one refrigerant tube, and at least one distributor provided between one header among the plurality of header and the at least one refrigerant tube. The at least one distributor may include an opening through which the at least one refrigerant tube may be coupled to the distributor, and a shielding wall having an inlet/outlet that guides introduction or discharge of the refrigerant.

The present disclosure relates to a device for exchange of energy and/or mass transfer between fluid flows, which device comprises a first fluid inlet (3a), a first fluid outlet (3c), a second fluid inlet (5a), a second fluid outlet (5c), a plurality of first channel layers (3) connecting the first fluid inlet (3a) with the first fluid outlet (3c), and a plurality of second channel layers (5) connecting the second fluid inlet (5a) with the second fluid outlet (5c), wherein the plurality of first channel layers (3) and the plurality of second channel layers (5) are arranged in a stacked manner forming stacked fluid channels (2), wherein at least some of the first channel layers (3) are in physical contact with a respective second channel layer (5) thereby forming channel pairs, wherein the channel pairs are spaced apart from each other, whereby cross-current channels (7) are formed therebetween, extending from one lateral side (9) of the stacked fluid channels (2) to the opposite lateral side (11) of the stacked fluid channels (2), thereby forming lateral fluid inlets (13) between lateral edges of first channel layers (3) and second channel layers (5) and lateral fluid outlets between opposite lateral edges of first channel layers (3) and second channel layers (5).

The invention relates to an exchanger arrangement (3) for the heat transfer and/or selective material transfer between a first fluid (F1) and a second fluid (F2), which can flow through the arrangement (3), said arrangement (2) being constituted of a multitude (n) of adjacent local exchanger elements (E.sub.1, E.sub.2, . . . , E.sub.n). The exchanger arrangement (3) has at least in some sections a cylindrical shape or the shape of a segment thereof or a prismatic shape having a polygonal base or the shape of a segment thereof. The adjacent local exchanger elements (E.sub.1, E.sub.2, . . . , E.sub.n) are flat structures that are either wedge-shaped or sheet-like.

An improved indirect heat exchanger is provided which is comprised of a plurality of coil circuits, with each coil circuit comprised of an indirect heat exchange section tube run or plate. Each tube run or plate has at least one change in its geometric shape or may have a progressive change in its geometric shape proceeding from the inlet to the outlet of the circuit. The change in geometric shape along the circuit length allows simultaneously balancing of the external airflow, internal heat transfer coefficients, internal fluid side pressure drop, cross sectional area and heat transfer surface area to optimize heat transfer.