Device for heat transfer and method for making it, the device having a housing with a heat exchanger disposed within and completely enclosed by the housing having a receiving element and cover element integrated within receiving element. First fluid flows through heat exchanger to be cooled; another fluid flows around heat exchanger. Heat transfer elements are shaped as a plate of a first jacket element and a second jacket element as well as a fin element; each includes a throughflow sector for inflow and outflow of first fluid. Each throughflow sector is developed on a front face of heat transfer element. Fin element has a lesser dimension in a longitudinal direction than jacket elements and is disposed therebetween such that in the proximity of a second front face, located distally to first front face, a free region is developed for deflecting direction of flow of first fluid.

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 dehumidification device with enhanced dehumidification effect includes a gas cooler receiving a first air gas and condensing the first air gas into a first condensing gas and a first condensing liquid. A heat exchanger has an inlet and an outlet. The first condensing gas flows from the gas cooler to a periphery of the heat exchanger to cool the heat exchanger. The inlet receives a second air gas from outside. The second air gas is condensed into a second condensing gas and a second condensing liquid using the cooled heat exchanger, and the second condensing gas and the second condensing liquid are expelled from the outlet. A gas heater receives the first condensing gas flowing through the periphery of the heat exchanger and the second condensing gas expelled from the outlet, and heats and turns them into dry air, and the gas heater expels the dry air.

A system of double concentric pipes having different enthalpy including a plurality of double pipes where the internal pipe is made of a material of high thermal conductivity and the external pipe is made of a material of low thermal conductivity.

An underground heat exchanger has a bottomed tubular flexible bag body accommodated in an accommodation hole portion in the ground, and an outer tube accommodated in the accommodation hole portion, vertically extending along an outer surface portion of the bag body and communicating in its lower end with a lower end of the bag body. The outer surface portion of the hardening resin bag body can cover an inner wall portion of the accommodation hole portion in a closely contact state with the bag body being inflated. The bag body is hardened in the covering state, a lining tubular body formed by the hardening can form a liquid storage tank for storing a heat medium liquid in its internal space, and the outer tube is pinched between the outer surface portion of the bag body and the inner wall portion.

Geothermal energy is increasingly recognized as a useful energy source for both industrial and residential purposes. Disclosed herein are units for subterranean heat exchange comprising a polymer block with mini-channels adapted and/or sized for highly efficient heat exchange. In some embodiments such units can, as needed, be manufactured off site, spooled for transport, and conveniently installed in boreholes. Other arrangements are also described for conduits located within a borehole for heat exchange, without a polymer block. Also disclosed are geothermal heat exchange systems including those that employ such units, for example with direct expansion of a two-phase heat-exchange fluid such as carbon dioxide.

The invention is directed to devices and methods to a heat storage capacity device having at least one body having an encapsulation made of one or more polymer layers defining a hollowed volume filled with PCM and at least one coaxial device surrounding the entire length of the at least one PCM filled body; and uses thereof.

A heat exchanger includes a tube configured to direct a working fluid therethrough. The heat exchanger also includes a fin disposed about the tube and having a louver, where the tube and the fin are made of a polymeric material.

A membrane heat exchanger comprising a first planar sheet and a second planar sheet coupled to the first planar sheet to form at least one fluid chamber defined by the first and second sheets and a first and second end that respectively communicate with a first and second port defined by at least one of the first and second sheet.

A heat exchanger includes a bag-like outer packaging material. A heat medium flows into an inside of the outer packaging material via the heat medium inlet, passes through the inside, and flows out of the outer packaging material via the heat medium outlet. An inner core material is arranged in the inside of the outer packaging material. The outer packaging material has an outer packaging laminate material including a metal heat transfer layer and a resin thermal fusion layer on a surface side of the heat transfer layer. The outer packaging laminate materials form a bag shape by integrally joining the thermal fusion layers along the peripheral edge portions. The inner core material includes the inner core laminate material with a metal heat transfer layer and resin thermal fusion layers on surface sides of the heat transfer layer. The thermal fusion layers of a concave portion bottom and a convex portion top of the inner core material and the thermal fusion layers of the outer packaging laminate material are integrally joined.