A heat exchanger 100, including: an inner cylinder 10 through which a first fluid can flow, the inner cylinder 10 being configured to house a heat recovery member 30; and an outer cylinder 20 disposed so as to be spaced on a radially outer side of the inner cylinder 10 such that a second fluid can flow between the outer cylinder 20 and the inner cylinder 10. In the heat exchanger 100, at least a part of the outer cylinder 20 and/or the inner cylinder 10 has at least one continuous irregular structure 40.

Embodiments of the present disclosure are directed toward a heat exchanger that includes an evaporator coil section disposed at least partially within a first flow structure configured to direct a first flow of air across the evaporator coil section, a condenser coil section fluidly coupled with the evaporator coil section and disposed at least partially within a second flow structure configured to direct a second flow of air across the condenser coil section, and an auxiliary heat exchanger fluidly coupled with the evaporator coil section, where the auxiliary heat exchanger is external to the first flow structure.

The heat exchanger assembly includes a first internal flow path configured to channel a flow of fluid to be cooled from a first inlet to a first outlet. The heat exchanger assembly also includes a second internal flow path configured to channel a flow of a first coolant from a first inlet to a first outlet. The heat exchanger assembly further includes an external flow path configured to receive a flow of a second coolant proximate a surface of the external flow path.

Provided is a heat exchanger including a plurality of refrigerant flow paths each being a flow path into which refrigerant flows in a gas state and out of which the refrigerant flows in a liquid state, and including upstream-side flow paths allowing passage of the refrigerant in the gas state and a two-phase gas-liquid state, and at least one downstream-side flow path allowing passage of the refrigerant in the two-phase gas-liquid state and the liquid state. The heat exchanger further includes an upstream-side heat exchanger including the upstream-side flow paths, a downstream-side heat exchanger including the at least one downstream-side flow path, and at least one merger for merging the refrigerant flowing out of each of the upstream-side flow paths and causing the merged refrigerant to flow into the at least one downstream-side flow path. The upstream-side heat exchanger and the downstream-side heat exchanger are configured separately. The number of the downstream-side flow paths is smaller than the number of the upstream-side flow paths.

The present invention provides a finned heat-exchange system, comprising a heat dissipation chamber, a fin, an air guide element and a base, wherein the heat dissipation chamber is isolated from the outside, and both the fin and the air guide element are connected to the base; and the air guide element and the fin are in communication with the heat dissipation chamber through the base to dissipate heat from the inside of the heat dissipation chamber.

Provided is a cooling device which includes a plurality of cooling units and a blocking member and in which at least a portion of the blocking member is disposed between the cooling units.

An improved indirect heat exchanger is provided which is comprised of a plurality of coil circuits, with each coil circuit comprised of an indirect heat exchange section tube run or plate. Each tube run or plate has at least one change in its geometric shape or may have a progressive change in its geometric shape proceeding from the inlet to the outlet of the circuit. The change in geometric shape along the circuit length allows simultaneously balancing of the external airflow, internal heat transfer coefficients, internal fluid side pressure drop, cross sectional area and heat transfer surface area to optimize heat transfer.

A heat exchanger including: rows of heat exchanging units that are superposed with one another in an air flow direction of the heat exchanger; and flat multi-hole tubes that extend from a first end toward a second of the heat exchanging units in a first direction in the heat exchanging units and that include gas-side flat multi-hole tubes. A refrigerant flows in the heat exchanging unit in the first direction. A number of the gas-side flat multi-hole tubes that are included in a front-most row heat exchanging unit on an airflow upstream side of the heat exchanger is less than a number of the gas-side flat multi-hole tubes included in a rear-most row heat exchanging unit on an airflow downstream side of the heat exchanger.

A heat exchange device includes a center manifold disposed between a first and second section, each of the first and second sections including flow passages configured for heat exchange between heat exchange fluid within the flow passages and fluid external of the flow passages. Each of the flow passages have a first end and a second end, and wherein adjacent ends of adjacent flow passages direct fluid flow in the same direction.

A counterflow heat exchanger includes a first fluid inlet, a first fluid outlet fluidly coupled to the first fluid inlet via a core section, a second fluid inlet, and a second fluid outlet fluidly coupled to the second fluid inlet via the core section. The core section includes a plurality of first fluid passages configured to convey the first fluid flow from the first fluid inlet toward the first fluid outlet, and a plurality of second fluid passages configured to convey the second fluid flow from the second fluid inlet toward the second fluid outlet such that the first fluid flow exchanges thermal energy with the second fluid flow at the core section. One or more drains are operably connected to the plurality of first fluid passages configured to remove condensation from an interior of the first fluid passages prior to the condensation reaching the first fluid outlet.