A porous heat exchanger including a single piece core extending axially is provided. The core defines a first air inlet and a first air outlet for a first fluid, a second air inlet and a second air outlet for a second fluid. The first/second fluid flows into the core from the first/second air inlet through a first/second fluid channel and flows out of the core through the first/second air outlet. The core includes solid material sheets and porous material sheets disposed alternately with the solid material sheets so each porous material sheet has an adjacent solid material sheet on each side defining one of the first fluid channel for a flow of the first fluid or the second fluid channel for a flow of the second fluid. Heat transfer occurs between the first fluid in the first fluid channel and the second fluid in the second fluid channel.

In a header plateless type heat exchanger, to suppress temperature rise at an apical portion of a tube into which exhaust gas at high temperatures or the like flows, to thereby improve durability. A recessed groove portion 4c recessed inward with narrow width is formed on outer face side of each of a pair of plates, in parallel to a swelling portion 4 and in the approximately same length.

A heat transfer plate comprises a first end portion, a second end portion and a center portion arranged in succession along a longitudinal center axis of the plate. The center portion comprises a heat transfer area provided with a heat transfer pattern comprising support ridges and support valleys longitudinally extending parallel to the longitudinal center axis of the plate. The support ridges and support valleys are alternately arranged along a number of separated imaginary longitudinal straight lines extending parallel to the longitudinal center axis of the plate and along a number of separated imaginary transverse straight lines extending perpendicular to the longitudinal center axis of the plate. The heat transfer pattern further comprises turbulence ridges and turbulence valleys. At least a plurality of the turbulence ridges and turbulence valleys along at least a center portion of their longitudinal extension extend inclined relative to the transverse imaginary straight lines.

A heat exchanger module having at least two fluid circuits, of longitudinal axis including a stack of plates, defining at least two fluid circuits, at least a part of the plates each including fluid circulation channels, the channels of at least one of the two circuits, referred to as first circuit, having at least one fluid supply and distribution zone for supplying and distributing fluid from outside the stack, forming a fluid pre-header, in which zone the channels are delimited by studs distributed over the surface of the plate; an exchange zone continuous with the pre-header and wherein the channels are each delimited by a groove separated from one another by a rib and extending along the longitudinal axis.

A plate heat exchanger comprising a top head, a bottom head, four side panels and four corner girders. The side panels and the corner girders extend along a longitudinal direction from the bottom head to the top head, and each side panel is associated with two corner girders. The top head, the bottom head, the four side panels and the four corner girders are joined together to form a sealed enclosure for housing a plate pack of stacked heat-exchanging plates. A continuous gasket assembly is arranged in a contact region between at least one side panel and two corner girders, the top head and the bottom head. The gasket assembly is located in a groove. Moreover, the gasket assembly is a segmented gasket assembly composed of plural gasket segments, and each gasket segment is made of graphite material. Also disclosed is a method for assembling such a plate heat exchanger.

A total heat exchange element includes a stacked body that is formed by alternately stacking a first layer provided with a first passage through which a first air flow passes and a second layer provided with a second passage through which a second air flow passes. The stacked body includes a partition member between the first layer and the second layer, a spacing member provided in the first layer and the second layer and maintaining a spacing between the partition members facing each other, and a latent heat shielding member provided partly on the partition member and shielding transfer of latent heat between the first air flow and the second air flow through the partition member.

The invention relates to an air conditioning apparatus including a first absorptive heat exchanger having sorption channels in at least one flow direction, a method for conditioning fluids, in particular for cooling and/or drying a stream of air, an adsorptive air-air cross-flow heat exchanger, and an outer wall element including an integrated air conditioning apparatus.

A shell-and-plate heat exchanger includes: a shell forming an internal space; and a plate stack, disposed in the internal space, including heat transfer plates that are stacked and joined together. The shell-and-plate heat exchanger is configured to allow a refrigerant that has flowed into the internal space to evaporate. The plate stack forms: refrigerant channels that communicate with the internal space and through which a refrigerant flows; and heating medium channels that are blocked from the internal space and through which a heating medium flows. Each of the refrigerant channels is adjacent to an associated one of the heating medium channels with one of the heat transfer plates interposed therebetween. The shell-and-plate heat exchanger further includes one or more supply structures that supply the refrigerant to the refrigerant channels such that the refrigerant flows downward.

A heat exchanger plate for use in a plate package for a heat exchanger device is disclosed. The plate has a geometrical main extension plane (q) and a circumferential edge portion, the circumferential edge portion having a curved upper portion, a substantially straight lower portion and two opposing side portions interconnecting the upper and the lower portions. An upper porthole is arranged in an upper section of the heat exchanger plate and located at a distance from the upper portion of the circumferential edge portion thereby defining an upper intermediate portion. The upper intermediate portion includes the shortest distance (d2) between a centre of the upper porthole and the upper portion of the circumferential edge portion. The heat exchanger plate further comprises an upper flange having an extension along the upper portion of the circumferential edge portion. The upper flange has a length (L2) as seen in a direction transverse the shortest distance (d2), being 200-80% of the diameter (D2) of the upper porthole and more preferred 180-120% of the diameter (D2) of the upper porthole. Further, a plate package is disclosed and also a heat exchanger device using such heat exchanger plate/plate package.

A brazing sheet may be used for brazing under an atmosphere of an inert gas without flux. The brazing sheet may include at least three layers. The at least three layers may include a core material, a brazing material layer, and an intermediate layer. The at least three layers may be cladded by an outermost layer of the brazing material layer. The intermediate layer may be disposed on a face of the core material. The core material may be composed of a first aluminum alloy including at least one of (i) 0.20 weight % to 1.0 weight % of Cu, (ii) 0.8 weight % to 1.8 weight % of Mn, and (iii) 0.25 weight % to 1.5 weight % of Mg. The intermediate layer may be composed of a second aluminum alloy including 0.20 weight % or less of each of Si and Fe and 0.10 weight % or less of each of Cu, Mn, and Cr.