A finned tube having a tube main body, on the outside of which, in particular separate or integral, fins are arranged, preferably circumferentially, wherein the fins and/or the tube main body are of a multi-layer material.

A heat exchanger system is provided and includes a heat sink, fins arrayed on a central region of the heat sink to form channels between adjacent fins and an integrated blower. Each of the fins extends radially outwardly from the central region and has a height that increases with increasing distance from the central region. The integrated blower is disposed at the central region to generate flows of coolant directed into and through the channels.

Provided herein are new aluminum alloy materials which are useful in replacing copper in a heat exchanger. The aluminum alloy materials are also useful in manufacturing components of heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems for indoor and outdoor units. The alloys are well-suited for tubing in a heat exchanger. The alloys display high strength and good corrosion resistance. Also provided herein are methods for making the aluminum alloy materials.

A heat exchanger layer having an inlet side, IN, where a medium enters the layer and an outlet side, OUT, where the medium exits the layer, and a plurality of fins defining a plurality of flow channels for the medium from the inlet side to the outlet side. Each fin has a leading edge adjacent the inlet side and a trailing edge adjacent the outlet side, and wherein the leading edge of a subset of the fins is thicker than the rest of the fin, and the leading edge of the fins intermediate the fins of the subset of fins is recessed with respect to the inlet side compared to the leading edge of the fins of the subset of fins.

A tubular heat exchanger includes tubes, each having a plurality of cells inside, stacked in multiple stages and zigzag-bent heat-radiating fins brazed and integrated among the tubes. The gaps among the tubes become progressively wider toward the rear to enable foreign substance to be discharged without being caught by the heat-radiating fins. The upper and lower surfaces are formed of an inclined surface progressively and symmetrically reduced and inclined rearwardly with respect to a tube center line to have the front cell thicker than the end cell. The upper and lower surfaces of the heat-radiating fins are formed of an inclined surface progressively and symmetrically enlarged and inclined rearwardly with respect to a fin center line. A wind direction guiding ribs, tilted toward the upper and lower surfaces of the tubes, protrude from the heat-radiating fins to blow the wind along the upper and lower surfaces of the tubes.

There is provided an electric suspended radiant disk heater apparatus comprising: a central and vertical ceiling mount pole for hanging from a ceiling at an upper end thereof in use; a radiant heater disk element fastened at a lower end thereof, the radiant heater disk element being substantially co-axial with the ceiling mount pole, being substantially perpendicular to the ceiling mount pole and extending radially from the lower end of the pole; and an electric heater element thermally coupled to the radiant heater disk element to heat the radiant heater disk to radiate heat from a radiant heat emitting undersurface thereof.

In various embodiments, multi-conduit assemblies 100 comprise pluralities of individual or distinct conduits 101 joined by various forms of webs 110, sleeves 176, wraps 222, 212, and/or retainers 181. Assemblies 100 are useful for fluid, electrical, communications, and other applications.

The present invention is related to a heat exchanging apparatus and a semiconductor refrigerator having the heat exchanging apparatus. Specifically, the present invention provides a heat exchanging apparatus comprising one or more sintered heat pipes. Each sintered heat pipe comprises a main pipe with both ends closed and having a first pipe segment and a second pipe segment, wherein the first pipe segment is configured to connect a heat or cold source, and one or more manifolds for radiating heat or transferring cold extend from one or more portions of the second pipe segment of the main pipe respectively. In addition, the present invention provides a semiconductor refrigerator having the heat exchanging apparatus.

A heat exchange device has a heat transfer member having thermal conductivity and a fin that is provided integrally with the heat transfer member. A heat transfer is performed between the heat transfer member and the fin. The fin is configured by more than one of a carbon nanotube aggregate that is configured by carbon nanotubes assembled together. The carbon nanotube aggregates are arranged on the heat transfer member and distanced from each other, and protrude from the heat transfer member in an axial direction of the carbon nanotubes.

An inner fin is a wave fin having board portions extending in a pipe longitudinal direction and a top portion connecting the board portions located adjacent with each other. The wave fin has a wave-shaped cross-section perpendicularly intersecting a pipe longitudinal direction, and the board portion is bent into a waveform extending in the pipe longitudinal direction when seen from a pipe layering direction. A wave pitch WP [mm], a wave depth WD [mm], and a passage width H [mm] are set to satisfy relationships of 2.2≤WP/WD≤4.28 and 0.5≤WD/H≤1.8.