Included are a plurality of first flow paths, and second flow paths arranged between adjacent ones of the first flow paths; and a layer including grooves constituting the first flow paths and the second flow paths, and a layer laminated on the insides of the grooves, and constituting inner surfaces of the first flow paths and the second flow paths.

A loop heat pipe includes: an evaporator; a condenser; a liquid pipe; a vapor pipe; and a loop-like flow channel through which the working fluid flows. At least one of the evaporator, the condenser, the liquid pipe, and the vapor pipe includes a first outer metal layer, a second outer metal layer, and an inner metal layer. The inner metal layer includes a porous body. The porous body includes: a first bottomed hole formed in one face of the inner metal layer; a second bottomed hole formed in the other face of the inner metal layer; a pore, wherein the first bottomed hole and the second bottomed hole partially communicates with each other through the pore; and a first column portion provided inside the first bottomed hole. The first column portion is bonded to the first outer metal layer.

A tube bundle heat exchanger having a tube sheet, an outer shell and an interior. The heat exchanger includes a tube bundle having tubes located in the interior for fluid flow. The tubes have outside ribs and a channel is formed between adjacent ribs. The tube sheet has openings as passage points. Outer fins of the tubes project into the openings, and a joint gap is formed between an inner surface defining the opening and the outer fins of a tube located therein. The tubes are bonded to the tube sheet by joining material with the involvement of the outer fins. The bond is only formed in a first portion of the opening. The first portion is filled with joining material such that a second portion of the opening remains which is not filled with joining material, and the tube has outer fins adjacent the second portion.

An inner rib, in particular for a flat tube, in particular of a heat exchanger, made from a metallic flat strip, which is shaped in a wavy modulated manner, having a large number of wave crests and wave troughs, which are each arranged alternately in a longitudinal direction of the inner fin, an essentially straight, web-like fin area being provided between one wave crest and an adjacent wave trough and connecting the wave crest to the wave trough, the metallic flat strip having a first strip thickness L1, which is essentially constant in the area of the wave crests and the wave troughs, the flat metallic strip having a second strip thickness L2, which is provided in the area of the web-like fin area, L2 being smaller than L1.

A heat dissipation device includes a main body and at least one heat conduction member. The main body has a top face. A periphery of the top face has a connection section. One end of the heat conduction member is correspondingly in contact and connection with the top face or the connection section. By means of the structure design of the present invention, the horizontal heat dissipation effect is greatly enhanced and the heat dissipation effect of the entire heat dissipation device is greatly enhanced.

A device for removal of heat from a plurality of heat sources includes a first manifold to receive a working fluid, and a plurality of elongated intermediate frame members each in thermal communication with at least one of the plurality of heat sources. Each intermediate frame member includes a microchannel in fluid communication with the first manifold to receive the working fluid from the first manifold. Each elongated intermediate frame member includes a slot extending along a longitudinal axis of the heat transfer device. The device further includes a second manifold spaced from the first manifold and in fluid communication with the plurality of intermediate frame members to receive the working fluid from each microchannel in the plurality of intermediate frame members. The second manifold is configured to transfer the working fluid away from the plurality of heat sources.

A heat transfer segment for a curved heat exchanger, wherein the heat transfer segment comprises a plurality of enclosure bars that at least partially define two opposite ends of the heat transfer segment, wherein the two opposite ends define respective general planes, characterised in that: the enclosure bars are shaped and arranged such that the general plane of one end of the heat transfer segment is not parallel with the general plane of the other end of the heat transfer segment, such that when said heat transfer segment is joined to an adjacent heat transfer segment in an end-to-end fashion the enclosure bars the heat transfer segment may join to corresponding enclosure bars of the adjacent heat transfer segment.

The present invention provides a flexible mat with fluid conduit, methods of manufacture thereof and apparatus for the manufacture thereof. In an embodiment, the mat comprises a base layer, one or more fluid conduits and a thermoplastic bonding tape that attaches the fluid conduits to the base layer. The base layer can be a textile fabric, mesh or netting, or a flat flexible sheet. The base layer is preferably also formed of a thermoplastic layer. The fluid conduits can carry heated or cooled fluid, such as water, that can be used for heating or cooling an environment in which the device is deployed. For example, the device can be used for heating or cooling in a greenhouse environment. The fluid conduits can additionally or alternatively carry irrigation fluids, such as water or treated water, for irrigating plants and crops. The fluid conduits can additionally or alternatively carry gases, such as carbon dioxide (CO.sub.2) or carbon dioxide mixed with other gasses, for treating plants and crops.

A transfer tube for a thermal transfer device can include at least one wall having an inner surface and an outer surface, where the inner surface forms a cavity, where the at least one wall further has a first end and a second end. The first end can be configured to couple to a terminus of a heat exchanger of the thermal transfer device. The second end can be configured to couple to a collector box of the thermal transfer device. At least a portion of the at least one wall can be disposed in a vestibule of the thermal transfer device. The cavity can be configured to simultaneously receive a first fluid that flows from the first end to the second end and a second fluid that flows from the second end to the first end.

A manufacturing method of a roll bond plate evaporator structure is disclosed. The roll bond plate evaporator structure includes a heat dissipation member, at least one inlet and at least one outlet. The heat dissipation member is composed of a first plate body and a second plate body, which are correspondingly mated with each other. The first and second plate bodies together define a flow way. A working fluid is filled in the flow way. The inlet is formed at one end of the heat dissipation member in communication with the flow way and the outlet is formed at the other end of the heat dissipation member in communication with the flow way.