Abstract: Disclosed is a novel intelligent adjustable passive roof, comprising an inner roof layer, an air layer, a thermal diode of jumping droplet materials and an outer roof layer which are sequentially arranged from bottom to top. The thermal diode of jumping droplet materials comprises a super-hydrophilic layer, a super-hydrophilic layer surface liquid-absorbing core and a super-hydrophobic layer which are sequentially arranged from bottom to top, and the super-hydrophilic layer is separated from the super-hydrophobic layer by gasket materials on left and right sides to form an intermediate air interlayer. By means of passive heat transfer control of the super-hydrophilic layer and the super-hydrophobic layer in the thermal diode of jumping droplet materials, a novel intelligent adjustable passive roof, which is driven passively by indoor and outdoor temperatures for “heat extraction/heat insulation,” does not need to be manually cleaned, and can be embedded into a building enclosure structure, is formed.

Abstract: A convection/radiation air conditioning terminal and an air conditioning system are provided. The convection/radiation air conditioning terminal includes a heat pipe. One end of the heat pipe is connected to a first heat exchange pipeline, and the other end of the heat pipe is connected to a second heat exchange pipeline. The heat pipe includes multiple first microchannels which are arranged and independent of each other, and multiple second microchannels which are arranged and independent of each other, where the first microchannels and the second microchannels are arranged and independent of each other. The first microchannels are each internally provided with a first heat exchange working medium, and the second microchannels are each internally provided with a second heat exchange working medium.

Abstract: A convection/radiation air conditioning terminal and an air conditioning system are provided. The convection/radiation air conditioning terminal includes a heat pipe. One end of the heat pipe is connected to a first heat exchange pipeline, and the other end of the heat pipe is connected to a second heat exchange pipeline. The heat pipe includes multiple first microchannels which are arranged and independent of each other, and multiple second microchannels which are arranged and independent of each other, where the first microchannels and the second microchannels are arranged and independent of each other. The first microchannels are each internally provided with a first heat exchange working medium, and the second microchannels are each internally provided with a second heat exchange working medium.