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 shield has a first layer, a second layer and a third layer. The first layer may have an outer surface and an inner surface. The second layer may have a first inner surface and a second inner surface. The third layer may have an inner surface and an outer surface, where the outer surface is defined by a plurality of dimples.

A heat exchanger includes a core portion including a plurality of tubes, and header tanks located on opposite ends in the longitudinal direction of the plurality of tubes and communicate with the plurality of tubes. A first fluid flows through a first tank chamber and a first tube group of the plurality of tubes. A second fluid different in temperature range from the first fluid flows through a second tank chamber and a second tube group of the plurality of tubes connected to the second tank chamber. The heat exchanger includes a flow rate limiting portion. The flow rate limiting portion is configured to reduce a flow rate of the first fluid or the second fluid supplied to at least first one tube of the plurality of tubes from a boundary portion provided by the partition wall.

A cold plate heat exchanger is disclosed, comprising: a main body comprising at least one active surface suitable to the heat transfer with at least one device in thermal contact with it; at least one channel, in which a coolant flows, formed inside said main body and arranged in proximity of said active surface and in thermal contact with it; and at least two hydraulic interconnections integral with said main body and comprising the respective inlet and outlet ducts of the coolant hydraulically connected to the ends of said internal channel; in which said internal channel is at least partially filled with an ordered lattice structure in thermal contact with the coolant, the ordered lattice structure comprising a periodic repetition of one or more elementary cells along at least one dimension. A method of production by additive manufacturing of a cold plate heat exchanger is also disclosed.

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 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.

A heat exchanger includes first and second plates joined together with portions of the inner surfaces spaced apart to define a plurality of fluid flow passages for flow of a heat transfer fluid. A dividing rib separates the heat exchanger into an inlet section and an outlet section, each of which includes a plurality of fluid flow passages. Inlet and outlet ports are located near a first end of the heat exchanger, on opposite sides of the dividing rib. The heat transfer surface area of the inlet section is less than that of the outlet section due to the presence of one or more flow obstructions between the inlet port and first ends of the fluid flow passages in the inlet section. Each flow obstruction may be a dead channel including a continuous outer rib completely surrounding a depressed middle region.

A heat shield has a first layer, a second layer and a third layer. The first layer may have an outer surface and an inner surface. The second layer may have a first inner surface and a second inner surface. The third layer may have an inner surface and an outer surface, where the outer surface is defined by a plurality of dimples.

A system and method for a multistage condenser is described that reduces problems associated with temperature and pressure differential strains on tubes above and below a dead tube. Instead of connecting the dead tube to the I/O manifold, a physical separation is created. The physical separation can be created by shortening the dead tube, coring a portion of the I/O manifold where the dead tube is received, independent I/O manifolds, or other means.

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.