A counter-flow heat exchanger comprising a heat exchanger core including an inner wall and an outer wall radially outward and spaced apart from the inner wall. A first flow path is defined within the inner wall and a second flow path is defined between the inner wall and the outer wall. The heat exchanger core includes a primary flow inlet, a primary flow outlet and a middle portion therebetween. The inner and outer walls are concentric at the primary flow inlet of the heat exchanger core. The inner wall defines a first set of channels extending axially from the primary flow inlet to the middle portion of the heat exchanger core diverging away from a radial center of the heat exchanger core. The inner wall and the outer wall define a second set of channels extending axially from the primary flow inlet to the middle portion of the heat exchanger core converging toward the radial center of the heat exchanger core.

A shell-and-tube equipment comprises an inlet channel for a first fluid to be cooled, an outlet channel for the cooled first fluid, a plurality of tube-bundle tubes, at least a tube-sheet, a shell enclosing the tube-bundle tubes and a bypass system for controlling the outlet temperature of the cooled first fluid at a target value. The bypass system comprises a box installed inside the outlet channel. The box is provided with an opening or conduit, a regulating valve and a box tube-sheet. The box is further provided with bypass bayonet tubes. Each bayonet tube extends from the box tube-sheet to a point in between a first open end and a second open end of the tube-bundle tubes and is partially inserted into a corresponding tube-bundle tube, so as an annular gap in between each tube-bundle tube and the corresponding bayonet tube is formed.

A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.

A heat exchanger for an oxygenator comprises multiple tube sections, each having a longitudinal tube axis, wherein the tube sections are disposed as a bundle having a longitudinal bundle axis, and the tube sections are connected to each other in at least one connecting section of the bundle by joining by way of chemical and/or physical bonded joints. A method for producing the heat exchanger is also provided.

A cooling tool (1) for a food or an animal feed extruder (E), the cooling tool has: an inlet end (3) at which extrudate (4) can be led into the cooling tool (1); an outlet end (5) where the cooled extrudate can be discharged; an extrudate flow channel (6) extending from the inlet end to the outlet end; and at least one coolant flow channel (7a, 7b, 7b) connected to the extrudate flow channel in a heat-transmitting manner. In a cross section (X-X) along the primary flow direction (8), the extrudate flow channel is substantially formed as a ring section; and the outer wall (9) of the extrudate flow channel (6) is formed at least from first and second segments (10, 11). The first and second segments are connected to each other by mechanical connection elements (12). The cooling tool is suitable for wet texturing of food and animal feed.

A device for regasifying liquefied natural gas (LNG) and co-generating cool freshwater and cool dry air, which device comprises at least one hermetic outer recipient containing an intermediate fluid in liquid phase and gaseous phase, the fluid having high latent heat and high capillary properties, traversed by at least one intermediate fluid evaporation tube inside the tube flows moist air whose moisture condenses, at least partly, in a capillary condensation regime on its inner face and on its outer face the liquid phase of the intermediate fluid evaporates, at least partially, in a capillary evaporation regime, and traversed by at least one LNG evaporation tube on which outer face the gaseous phase of the intermediate fluid condenses at least partially, under a capillary condensation regime, and inside the tube, the LNG is heated and changes phase and the regasified natural gas (NG) is heated to a temperature greater than 5 C.

A counter-flow heat exchanger comprising a heat exchanger core including an inner wall and an outer wall radially outward and spaced apart from the inner wall. A first flow path is defined within the inner wall and a second flow path is defined between the inner wall and the outer wall. The heat exchanger core includes a primary flow inlet, a primary flow outlet and a middle portion therebetween. The inner and outer walls are concentric at the primary flow inlet of the heat exchanger core. The inner wall defines a first set of channels extending axially from the primary flow inlet to the middle portion of the heat exchanger core diverging away from a radial center of the heat exchanger core. The inner wall and the outer wall define a second set of channels extending axially from the primary flow inlet to the middle portion of the heat exchanger core converging toward the radial center of the heat exchanger core.

A heat exchange device effectively collects heat in a device, in which high temperature occurs, such as a scrubber. The heat exchange device includes a first heat exchange unit having a reactor positioned on the center thereof and having a first passage, which is arranged to enclose the reactor and discharges a first gas generated in the reactor, and a second passage, which is arranged adjacent to the first passage and introduces a second gas introduced from the outside. A second heat exchange unit is installed to enclose the first heat exchange unit and having a third passage, which is connected to the first passage and receives the first gas from the first passage to discharge the first gas to the outside, and a fourth passage, which is arranged adjacent to the third passage and introduces the second gas introduced from the outside into the second passage.

A fluid heating system for heating a production fluid using a thermal transfer fluid, the production fluid being contained in a vessel includes an electric blower configured to receive ambient air and electrical input power and to provide output source air, a combustion system configured to receive the source air from the electric blower and to receive fuel and to provide the thermal transfer fluid, a heat exchanger configured to receive the thermal transfer fluid from the combustion system and configured to be in thermal communication with the production fluid to provide convective heat exchange from the thermal transfer fluid to the production fluid, and to provide output exhaust gas, and wherein the electric fan provides a predetermined volume flow rate of the output source air at a predetermined blower efficiency such that the fluid heating system has a Bulk Heat Flux of at least about 14.7 kBTU/Hr/ft.sup.2 and a Pressure Drop of at least about 0.7 psi.

A heat exchanger includes: a hollow pillar shaped honeycomb structure; a first cylindrical member fitted to a surface of an outer peripheral wall of the pillar shaped honeycomb structure; a second cylindrical member fitted to a surface of an inner peripheral wall of the pillar shaped honeycomb structure; a cylindrical guide member having a portion, the portion being disposed on a radially inner side of the second cylindrical member with a distance so as to form the flow path for the first fluid; an upstream cylindrical member connecting an upstream end of the first cylindrical member to an upstream side of the guide member; and a downstream cylindrical member connected to a downstream end of the first cylindrical member. The guide member includes an inclined portion that inclines to its downstream side.