An air-conditioning unit is provided, comprising: an input vent for receiving return air; an intermediate vent; an output vent; a blower fan proximate to the input vent for moving the return air from the input vent to the intermediate vent; and an air-conditioner coil between the intermediate vent and the output vent including an active portion including one or more operational air-conditioning coils that receive a first portion of the return air from the intermediate vent, for circulating a coolant, condition the first portion of the return air by heat exchange with the coolant to create conditioned air, and pass the conditioned air to the output vent, and an inactive portion that does not circulate coolant and passes a second portion of the return air as unconditioned air to the output vent, wherein the conditioned air and the unconditioned air pass through the output vent as supply air.

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.

Provided is an integrated heat exchanger including a header tank in which a gasket is interposed between the header and the tank to seal a portion that the header and the tank are coupled to each other, wherein an inner space of the header tank is partitioned such that a first space portion formed between regions in which the heat exchange medium flows is formed to be in communication with an external region of the header tank through a heat exchange medium discharging means formed at a portion that the header and the tank are coupled to each other, thereby preventing the heat exchange mediums from being leaked between two heat exchange portions and to detect a leakage of the heat exchange medium even when the leakage of the heat exchange medium occurs.

This heat exchanger includes fluid circulation channels extending lengthwise along a first axis, and layers that are flat and superposed on one another along a second axis. To improve performance, each layer is made up of metal strips so the strips a layer all extend lengthwise perpendicular to the second axis and adjacent one another, without necessarily touching. Each channel is jointly defined by first through third layers, the second being intercalated, along the second axis, directly between the first and third layers so each channel is delimited by a face of the first and third layers and edges of the second layer running parallel to the first axis and transversely to the second layer, these edges being formed by strips of this second layer fusion-welded to the first and third layers in zones extending along the length of the channel and situated on either side of the channel.

An exhaust gas recirculation heat exchanger assembly that includes a tube, a fin structure, and a clip. The tube has first and second walls extending between a first lateral end and a second lateral end. The fin structure is received in the tube to form a cooling tube assembly. The cooling tube assembly defines a first channel between the first lateral end and a first fin of the fin structure, a second channel between the second lateral end and a second fin of the fin structure disposed opposite the first fin, and a plurality of intermediate channels extending between the first and second channels. The clip is coupled to the cooling tube assembly. The clip has at least one flow impeding portion being configured to impede a fluid flow through at least one of the first channel, the second channel, and one or more of the intermediate channels.

The present discloses a gas-gas high-temperature heat exchanger, including a shell (12), a tube sheet (5), a low-temperature gas inlet pipeline (6) and an outlet pipeline (7), and a high temperature gas outlet (8), the tube is divided into a first heat transfer zone (1) and a second heat transfer zone (2), a low temperature gas (4) flows in the tube, the tube includes a insert component (9) and an outer fin (10); a heat transfer tube in the second heat transfer zone (2) has a sleeve structure, a high-temperature gas (3) flows in the core tube (13), the low temperature gas (4) flows in an annular region between the core tube (13) and an outer tube (14), the high-temperature gas (3) flows out of the core tube (13) and flows into the shell-side area of the second heat transfer zone (2) again.

A thermal energy storage and heat exchanger includes a plurality of concrete thermal energy storage elements, a housing into which the plurality of concrete thermal energy storage elements are arranged, a heat transfer and storage medium in a volume between the plurality of concrete thermal energy storage elements and the housing, in a form of a stagnant medium or a dynamic medium. The thermal energy storage and heat exchanger further includes at least one inlet for delivery of thermal energy to the thermal energy storage, at least one outlet for taking out thermal energy from the thermal energy storage, and thermal insulation arranged into or on an inside or outside of walls, floor and roof of the housing.

An integrated heat exchanger in which a flow path, in which a first heat exchange medium flows, and a flow path, in which a second heat exchange medium flues, are separated by a baffle, and includes a support surface having a slope of which the height lowers toward the outside, and formed at a header portion coming in contact with a gasket baffle sealing part, and the gasket baffle sealing part formed in a shape corresponding to the support surface of a header such that the deformation of a gasket is prevented during coupling; and problems in which the gasket of a coupling part, at which the baffle is positioned, is non-uniformly compressed or the gasket is broken or separated from a designated position by means of force of the other direction is prevented.

A heat exchanger includes a core and a header tank. The header tank includes a partition, a first inlet pipe, and a second inlet pipe. The partition divides an inside passage of the header tank into a first tank and a second tank. The first inlet pipe introduces a first fluid into the first tank. The second inlet pipe introduces a second fluid into the second tank. The first inlet pipe is inclined at a predetermined angle except a right angle relative to an outer surface of the header tank such that a flow direction of the first fluid flowing from the first inlet pipe to the first tank includes a component in a predetermined direction from a first end of the first tank provided with the partition to a second end of the first tank opposite to the first end.

A heat exchanger system can be used for removal or introduction of heat from or into a chemical reactor in which a chemical reaction is proceeding. The system further provides an apparatus for controlling the temperature of a reactor and a process for performing a chemical reaction, in each case using a heat exchanger system with a thermally insulated inner tube.