The present application provides a heat exchanger and a manufacturing method of a heat exchanger. The heat exchange includes a metal substrate having a fluid channel for circulating a heat exchange medium. The heat exchanger includes a coating having a rare earth conversion coating and a hydrophilic coating. The rare earth conversion coating is arranged to cover at least part of a surface of the metal substrate, and the rare earth conversion coating includes a rare earth element-containing compound. At least part of the hydrophilic coating is further away from the metal substrate than the rare earth conversion coating. A surface of the heat exchanger is hydrophilic, which is conducive to the discharge of condensate water, and can improve corrosion resistance and prolong a service life of the heat exchanger.

A composite heat dissipation device includes an electromagnetic radiation dissipation pile including a polar dielectric material assembly including a plurality of polar dielectric material units. The polar dielectric material assembly is configured to interact with solar radiation. Surfaces of the polar dielectric material units each are configured to interact with the solar radiation to generate scattering of light. The polar dielectric material units each include an optical phonon configured to interact with thermal radiation to increase strength of the thermal radiation.

A composite heat dissipation device includes an electromagnetic radiation dissipation pile including a polar dielectric material assembly including a plurality of polar dielectric material units. The polar dielectric material assembly is configured to interact with solar radiation. Surfaces of the polar dielectric material units each are configured to interact with the solar radiation to generate scattering of light. The polar dielectric material units each include an optical phonon configured to interact with thermal radiation to increase strength of the thermal radiation.

A heat exchanger, includes a heat exchange pipe unit and a fin unit, the heat exchange pipe unit includes a refrigerant input pipe, a heat exchange pipe assembly and a refrigerant output pipe; the refrigerant input pipe is connected to one end of the heat exchange pipe assembly; the refrigerant output pipe is connected to the other end of the heat exchange pipe assembly; the fin unit is fixedly arranged outside of the heat exchange pipe assembly; the heat exchange pipe assembly and the fin unit are made of aluminum alloy; and the corrosion potential of the aluminum alloy which forms at least a part of the heat exchange pipe assembly is greater than the corrosion potential of the aluminum alloy which forms the remaining part of the heat exchange pipe assembly.

A tube bundle-type heat exchanger, to a tube base, and to a method for sealing same. Aspects of the invention relate to a tube base for a tube bundle-type heat exchanger. In particular, the tube base includes a stack of multiple tube base plates with at least one through-opening for receiving a respective tube of the tube bundle-type heat exchanger. The throughopening is sealed by at least one seal ring. Additional aspects relate to a tube bundle-type heat exchanger comprising such a tube base and to a method for sealing a tube bundle-type heat exchanger in particular in the region of the tube base.

Disclosed is a heat exchanger, including a plurality of adjacent sheets. An upper surface of each sheet is provided with a plurality of raised peak lines that are arranged in parallel and spaced rows and raised upward, and a lower surface of each sheet is provided with a plurality of raised contour lines that are arranged in parallel and spaced rows and raised downward. A first flow channel and a second flow channel are formed between adjacent three sheets. Fluid flows through the first flow channel along a first direction and a second direction, and fluid flows through the second flow channel along the first direction and a third direction. A convection is formed by the fluid flowing through the first flow channel and the second flow channel. The present disclosure can improve heat exchange efficiency and be easy to industrialize.

Disclosed is a heat exchanger, including a plurality of adjacent sheets. An upper surface of each sheet is provided with a plurality of raised peak lines that are arranged in parallel and spaced rows and raised upward, and a lower surface of each sheet is provided with a plurality of raised contour lines that are arranged in parallel and spaced rows and raised downward. A first flow channel and a second flow channel are formed between adjacent three sheets. Fluid flows through the first flow channel along a first direction and a second direction, and fluid flows through the second flow channel along the first direction and a third direction. A convection is formed by the fluid flowing through the first flow channel and the second flow channel. The present disclosure can improve heat exchange efficiency and be easy to industrialize.

The present application provides a heat exchanger and a manufacturing method of a heat exchanger. The heat exchange includes a metal substrate having a fluid channel for circulating a heat exchange medium. The heat exchanger includes a coating having a rare earth conversion coating and a hydrophilic coating. The rare earth conversion coating is arranged to cover at least part of a surface of the metal substrate, and the rare earth conversion coating includes a rare earth element-containing compound. At least part of the hydrophilic coating is further away from the metal substrate than the rare earth conversion coating. A surface of the heat exchanger is hydrophilic, which is conducive to the discharge of condensate water, and can improve corrosion resistance and prolong a service life of the heat exchanger.

A diffuser plate for a thermal transfer device can include a body having a number of first apertures and a second aperture that traverse therethrough, where the first apertures are asymmetrically arranged with respect to the second aperture. The first apertures can have a first shape and a first size, and where the first apertures are configured to receive a plurality of tubes. The second aperture has a second size, where the second size is larger than the first size.

In one aspect, a transparent heat exchanger includes a first transparent substrate optically attached to a heat source, one or more fins to transfer heat from the heat source, the one or more fins comprising transparent material and further comprising one of a manifold coupled to the first transparent substrate or a facesheet coupled to the first transparent material.