A heat exchange core according to an embodiment includes a plurality of first layers including a plurality of first flow paths, a first header connected to the plurality of first flow paths, and a plurality of second layers including a plurality of second flow paths and disposed alternately with the first layers in a layering direction. The first header includes a first main header extending in the layering direction and a first sub header provided on each of the plurality of first layers and connected to the first main header. End portions of some of the plurality of first flow paths are connected to the first main header, and end portions of a remainder of the plurality of first flow paths are connected to the first sub header.

Device for heat transfer between a first fluid and one second fluid includes a housing with first housing element, second housing element and heat transfer element. Housing is developed with a first connecting fitting and a second connecting fitting for each fluid. Heat transfer element is disposed in a volume completely enclosed in a housing and is developed for through-conduction of the first fluid. Housing is developed for conduction of the second fluid about the heat transfer element. Connecting fittings for second fluid are either disposed on the first housing element and the connecting fittings for the first fluid are disposed on the second housing element, wherein within the second housing at least one flow path for conducting the first fluid is implemented which extends between a connecting fitting and a collector region or the connecting fittings for the fluids are disposed on the first housing element.

A heat exchanger includes a first channel with at least one first wall for porting a first fluid and a second channel with at least one second wall for porting a second fluid. The heat exchanger includes a barrier chamber located between the at least one first wall and the at least one second wall such that a rupture of one of the at least one first wall and the at least one second wall does not result in mixing of the first fluid and the second fluid. The heat exchanger includes a support member that extends between the at least one first wall and the at least one second wall.

A heat exchanger according to the present invention includes: a pillar shaped honeycomb structure having a plurality of cells, the cells providing first flow paths through which a first fluid is passed; an inner cylinder attached to an outer periphery of the honeycomb structure; and an outer cylinder disposed on an outer periphery of the inner cylinder, the outer cylinder providing a second flow path through which a second fluid is passed, the second flow path being arranged between the outer cylinder and the inner cylinder. The second flow path includes: an intermediate flow path extending in an axial direction of the honeycomb structure so as to include an outer peripheral position of the honeycomb structure; and side flow paths located on both sides of the intermediate flow path in the axial direction. The intermediate flow path has a height lower than that of each of the side flow paths.

Provided is a heat exchanger in which first flow paths for flowing a first fluid and second flow paths for flowing a second fluid are arranged adjacent via a partition wall through which heat exchange is performed. The partition wall includes parallel tubular partition walls inside of which is the first flow paths. At least a part of the tubular partition walls in a flow path direction are integrally coupled to form a partition wall coupling portion having a geometric pattern in transverse cross section. An element figure of the geometric pattern corresponding to a transverse cross-sectional shape of the tubular partition wall is connected to each other at a vertex, and the number of sides of the element figure gathering at the vertex is an even number. In the partition wall coupling portion, the second flow paths are defined between outer peripheral surfaces of the surrounding tubular partition walls.

Heat transfer device (10) for heating a fluid or a fluid foam on demand comprising a path (30) through which the fluid or the fluid foam circulates and at least one layer (11) made of a thermally conductive material, the path (30) being in contact with the layer (11) in such a way that when the layer (11) is heated it transmits heat to the fluid or fluid foam as it circulates through the path (30), wherein the path (30) and the part of the layer (11) in contact with said path (30) are detachably configured so that they are made accessible for being cleaned.

One example aspect of the present disclosure is directed to a system for cooling a surface. The system can include a housing. The housing can include an evaporator portion. The housing can include at least one trifurcated heat exchange portion. The at least one trifurcated heat exchange portion can include a condenser portion coupled to the evaporator portion. The at least one trifurcated heat exchange portion can include a coolant portion substantially surrounded by the condenser portion. The at least one trifurcated heat exchange portion can include a phase change material portion substantially surrounding the condenser portion.

A multiple-stage fractal heat exchanger includes two or more first fluid flow paths arranged adjacent to one another. Each first fluid flow path is defined by a main inlet channel on one side which diverges into two or more smaller channels to form a central first fluid flow path. In each of the two or more first fluid flow paths. The two or more smaller channels converge away from the central first fluid flow path into a main outlet channel on an opposite side of the first fluid flow path to the main inlet channel. The main outlet channel of each of the two or more first fluid flow paths is configured to be connected to the main inlet channel of an adjacent first fluid flow path.

A heat exchanger includes a first channel with at least one first wall for porting a first fluid and a second channel with at least one second wall for porting a second fluid. The heat exchanger includes a barrier chamber located between the at least one first wall and the at least one second wall such that a rupture of one of the at least one first wall and the at least one second wall does not result in mixing of the first fluid and the second fluid. The heat exchanger includes a support member that extends between the at least one first wall and the at least one second wall.

A heat exchange conduit includes a conduit body extending along a longitudinal axis between an inlet at one end thereof and an outlet at an opposed end. The conduit body has at least one conduit wall. At least one of said conduit walls is a heat-exchange wall shaped to be in heat exchange relationship with an object or fluid in contact therewith. An elongated turbulence strip is disposed within the conduit body and extends along a length thereof. The turbulence strip has longitudinally spaced-apart flow impact walls. Each flow impact wall has a peripheral rim and is perpendicular to the longitudinal axis. A flow gap for fluid flow is defined between at least a portion of the peripheral rim of each flow impact wall and an adjacent inner surface of the at least one conduit wall.