A header includes a plurality of branch tubes and a header manifold. If refrigerant flowing into the header manifold forms a pattern of annular flow or churn flow, tips of the branch tubes inserted into the header manifold pass through a liquid-phase portion having a thickness δ [m] and reach a gas-phase portion. The thickness δ [m] of the liquid-phase portion is defined as δ=G×(1−x)×D/(4ρ.sub.L×U.sub.LS), where G is a flow speed [kg/(m.sup.2 s)] of the refrigerant, x is a quality of the refrigerant, D is an inside diameter [m] of the header manifold, ρ.sub.L is a liquid density [kg/m.sup.3] of the refrigerant, U.sub.LS is a reference apparent liquid speed [m/s] that is a maximum value within a range of variation in an apparent gas speed of the refrigerant flowing into a flow space of the header manifold. The reference apparent liquid speed U.sub.LS [m/s] is defined as G(1−x)/ρ.sub.L.

A heat exchange module having a first heat exchanger, configured to enable heat exchange between a first fluid and a flow of air and extending inside a first plane of overall extension, and a second heat exchanger, configured to enable heat exchange between a second fluid and the flow of air and extending inside a second plane of overall extension, is disclosed. A housing delimiting, with the first heat exchanger, a circulation channel for the flow of air is included. The module has at least one air distribution member, movable between a position in which the air distribution member allows the flow of air to pass through the first heat exchanger and the second heat exchanger, and a position in which the air distribution member prevents the flow of air from passing through the first heat exchanger while allowing the flow of air to pass through the second heat exchanger.

A heat exchanger includes a fluid reservoir having a peripherally extending foot, a header having a mounting tab bent to engage the foot of the fluid reservoir to couple the header to the fluid reservoir, and a retaining feature configured to prevent disengagement of the mounting tab of the header from the foot of the fluid reservoir. The retaining feature overlays at least a portion of an outer surface of the mounting tab while otherwise restrained by a portion of the fluid reservoir in order to prevent the disengagement of the mounting tab from the foot.

A water cooling radiator includes a water pump assembly and a water drain assembly. The water pump assembly includes a base and a housing spliced with the base to form an accommodating cavity. A water inlet portion and a water outlet portion in the accommodating cavity are formed on the base. The water inlet portion includes a water inlet tank provided on the base, a water inlet pump arranged in the water inlet tank and connected with the base, and a water inlet nozzle connected to the base and communicated with the water inlet tank, The water inlet tank is communicated with the water drain assembly. The water outlet portion includes a water outlet tank provided on the base, a water outlet pump arranged in the water outlet tank and connected with the base, and a water outlet nozzle connected to the base and communicated with the water outlet tank.

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.

A cooling device with a heat exchanger through which air flows and at least one fan arranged on the heat exchanger, forming a radial gap for generating airflow through the heat exchanger. The heat exchanger having a front face through which air flows which points toward the fan and is covered in portions by the fan, so that the front face is divided into a first subface that is at least partially covered by the fan and a second subface that is free of the fan. The cooling device has a guide sleeve arranged between the heat exchanger and the fan so as to close the radial gap at least in portions, forms a flow channel leading from an air outlet of the fan to the first subface of the front face, fluidically connects the air outlet to the first subface, and fluidically separates the same from the second subface.

A subsea power module including: a tank having a tank wall provided with an outwardly protruding corrugation, a power device arranged in the tank, a dielectric liquid which fills the tank, for cooling the power device, a pump configured to circulate the dielectric liquid in the tank, wherein the pump has a pump inlet and a pump outlet, a duct arranged in the corrugation such that a chamber is formed between a tip of the corrugation and the duct, wherein the duct has a duct inlet connected to the pump outlet, and wherein the duct is provided with at least one duct outlet opening into the chamber, and a distancing structure configured to space apart an outer surface of the duct facing the tank wall and the tank wall in the corrugation, whereby gaps are formed between the duct and the tank wall in the corrugation, enabling dielectric liquid that has been discharged through the at least one duct outlet into the chamber to be squeezed out from the chamber and the corrugation, and flow towards the pump inlet.

A heat exchanger includes a plurality of fins arranged as a network and delimiting corridors, and an envelope having an internal wall and an external wall, the internal and external walls delimiting between them a channel for a flow of a first fluid in a main direction, the network of fins being arranged in the channel and connected to the internal and external walls, at least one passage for a flow of a second fluid being embedded in at least one of the internal and external walls, the channel being, in the main direction, divergent and then convergent.

A method for cooling a mixed beverage formed with one or more beverage components includes circulating a refrigerant through a heat exchanger having a phase change material to cool a beverage component and sensing a temperature of the refrigerant. The method further includes detecting a first instance when the sensed temperature of the refrigerant equals a threshold refrigerant temperature, detecting a second instance when the sensed temperature of the refrigerant equals the threshold refrigerant temperature, and stopping circulation of the refrigerant when the second instance is detected.

A heat exchanger may comprise a primary fluid path comprising an outer shell enclosing a primary cavity through which a primary fluid may flow; and a secondary fluid path coupled to the primary fluid path comprising a secondary fluid supply conduit, a secondary fluid exit conduit, and a first heat transfer element coupled fluidly between the secondary fluid supply conduit and the secondary fluid exit conduit, wherein the secondary fluid path is configured such that a secondary fluid may flow through the secondary fluid supply conduit, the first heat transfer element, and the secondary fluid exit conduit, which are in fluid communication with one another. The first heat transfer element, and additional heat transfer elements, may be disposed in the primary cavity such that the primary fluid contacts a secondary outer shell of the first heat transfer element.