A heat exchanger, a processing method of a heat exchanger and a composite material, wherein the heat exchanger includes a collecting pipe, a fin and a numnber of heat exchange tubes. Each of the heat exchange tubes is fixed to the collecting pipe, and an inner cavity of the heat exchange tube is communicated with an inner cavity of the collecting pipe. The fin is retained between two adjacent heat exchange tubes. The heat exchanger further includes a coating layer which is coated on an outer surface of at least one of the collecting pipe, the heat exchange tube and the fin. The coating layer includes micro-nano particles and a polymer obtained by polymerizing monomers including allylic monomers with hydrophilic groups. The micro-nano particles include silicon dioxide and/or titanium dioxide. The coating layer of the heat exchanger has excellent hydrophilic durability.

A heat exchanger and a processing method of heat exchanger. The heat exchanger includes a collecting pipe, a fin and a number of heat exchange tubes. The heat exchange tubes are fixed with the collecting pipe. At least part of the fin is fixed between two adjacent heat exchange tubes. The heat exchanger includes a coating with a first matching coating which is in direct contact with at least one of the collecting pipe, the heat exchange tubes and the fin; or, at least one functional films is further spaced between the first matching coating and at least one of the collecting pipe, the heat exchange tubes and the fin. The first matching coating includes a hydrophobic material and a filler of nanoparticle type.

A processing method of a heat exchanger and a heat exchanger are provided. The processing method includes following steps. A heat exchanger and a composite material is provided, where the heat exchanger includes a collecting pipe, a fin and a heat exchange tubes. The heat exchange tube is fixed to the collecting pipe. An inner cavity of the heat exchange tube is communicated with an inner cavity of the collecting pipe. At least part of the fin is retained between two adjacent heat exchange tubes. The composite material includes a solvent and an organosilane-based modified material with low surface energy. The composite material is coated on at least part of an outer surface of at least one of the collecting pipe, the heat exchange tube and the fin, and the composite material is cured. The heat exchanger obtained according to the present disclosure shows better hydrophobic performance.

There are provided a heat exchanger having a flat tube and a fin bonded together, without causing melting of a coating material covering the fin, and a method of manufacturing thereof. A heat exchanger includes: a flat tube having a flat cross-sectional shape and covered with an anticorrosive layer; and a fin bonded to the flat tube with a bonding agent on a first surface of the anticorrosive layer interposed therebetween, and covered with a coating material, the first surface of the anticorrosive layer having been roughened, and the bonding agent being fixed to the roughened first surface.

There are provided a heat exchanger having a flat tube and a fin bonded together, without causing melting of a coating material covering the fin, and a method of manufacturing thereof. A heat exchanger includes: a flat tube having a flat cross-sectional shape and covered with an anticorrosive layer; and a fin bonded to the flat tube with a bonding agent on a first surface of the anticorrosive layer interposed therebetween, and covered with a coating material, the first surface of the anticorrosive layer having been roughened, and the bonding agent being fixed to the roughened first surface.

Disclosed herein are heat exchanger devices comprising an outer shell defining an interior chamber that is configured to pass a heat transfer fluid therethrough, a tube at least partially disposed within the interior chamber and in thermal communication with the heat transfer fluid, the tube being connected to a pool and configured to flow water from the pool therethrough such that the water flowing through the tube exchanges heat with the heat transfer fluid, and a coating disposed on an interior surface of the tube contacting the water from the pool, the coating comprising Nickel. The coating can comprise an additive, such as an electroless Nickel coating. The coating can also be selected from the group consisting of polytetrafluoroethylene (PTFE), Boron Nitride (BN), Silicon Carbide (SiC), aluminum oxide (Al.sub.2O.sub.3), carbon (C), and carbon allotropes.

Disclosed herein are heat exchanger devices comprising an outer shell defining an interior chamber that is configured to pass a heat transfer fluid therethrough, a tube at least partially disposed within the interior chamber and in thermal communication with the heat transfer fluid, the tube being connected to a pool and configured to flow water from the pool therethrough such that the water flowing through the tube exchanges heat with the heat transfer fluid, and a coating disposed on an interior surface of the tube contacting the water from the pool, the coating comprising Nickel. The coating can comprise an additive, such as an electroless Nickel coating. The coating can also be selected from the group consisting of polytetrafluoroethylene (PTFE), Boron Nitride (BN), Silicon Carbide (SiC), aluminum oxide (Al.sub.2O.sub.3), carbon (C), and carbon allotropes.

A microchannel evaporator includes a plurality of microchannels. Each of the plurality of microchannels includes a first end and a second end. A first end-tank is coupled to each first end of the plurality of microchannels and a second end-tank is coupled to each second end of the plurality of microchannels. An inlet is coupled to the first end-tank for receiving a fluid into the microchannel evaporator and an outlet is coupled to the second end-tank for expelling the fluid from the microchannel evaporator. Each microchannel of the plurality of microchannels is substantially U-shaped.

A microchannel evaporator includes a plurality of microchannels. Each of the plurality of microchannels includes a first end and a second end. A first end-tank is coupled to each first end of the plurality of microchannels and a second end-tank is coupled to each second end of the plurality of microchannels. An inlet is coupled to the first end-tank for receiving a fluid into the microchannel evaporator and an outlet is coupled to the second end-tank for expelling the fluid from the microchannel evaporator. Each microchannel of the plurality of microchannels is substantially U-shaped.

A composite cooling film (100) comprises an antisoiling layer (160) secured to a first major surface of a reflective microporous layer (110). The reflective microporous layer (110) comprises a first fluoropolymer and is diffusely reflective of electromagnetic radiation over a majority of wavelengths in the range of 400 to 2500 nanometers. The antisoiling layer (160) has an outwardly facing antisoiling surface (162) opposite the micro-voided polymer film. An article (1100) comprising the composite cooling film (1112) secured to a substrate (1110) is also disclosed.