Radiation refrigeration curtain
A technology of radiant cooling and curtains, applied in roof covering, climate change adaptation, horticulture, etc., can solve the problems of affecting the normal growth of animals and plants, limited cooling effect, and inconspicuous effect, and achieves diverse installation methods and resistance to bending good sex effect
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[0036] In the first embodiment, a plurality of film strips 2 are light-transmitting film strips 201, such as figure 1 , 2 As shown, the light-transmitting film strip 201 includes a radiation cooling layer 211 , and the visible light transmittance of the light-transmitting film strip 201 is greater than 50%. The radiant cooling screen of this embodiment allows visible light to pass through, and when it is applied to a greenhouse, it can not only reduce the temperature, but also ensure that animals and plants get a certain amount of light.
[0037] The thickness of the radiation cooling layer 211 is 10 μm˜1000 μm.
[0038] In the second embodiment, a plurality of film strips 2 are reflective film strips 202, such as image 3 As shown, the reflective film strip 202 includes a radiative cooling layer 211 and a reflective layer 212, and the reflective rate of the reflective layer 212 is 20%-100% in the wavelength range of 300nm-2500nm. The radiation cooling screen of this embodi...
Embodiment 1
[0061] A radiant cooling curtain includes a woven frame 1 and a plurality of film strips 2 arranged side by side on the woven frame 1, and the plurality of film strips 2 are respectively alternately arranged light-transmitting film strips 201 and reflective film strips 202, such as Figure 4 shown.
[0062] The light-transmitting film strip 201 includes a resin and a radiation cooling body dispersed in the resin, and the radiation cooling body is SiO with a particle size of 10 microns. 2 , the mass ratio of the radiant cooling body to the resin is 2:99, and the thickness of the light-transmitting film strip 201 is 100 microns.
[0063] The reflective film strip 202 includes a radiative cooling layer 211 and a reflective layer 212 formed on the radiative cooling layer 211 . Radiation cooling layer 211 includes resin and radiation cooling body dispersed in the resin, the radiation cooling body is SiO with a particle size of 10 microns 2 , the mass ratio of the radiation coolin...
Embodiment 2
[0066] A radiant cooling screen includes a woven frame 1 and a plurality of film strips 2 arranged side by side on the woven frame 1 , and the plurality of film strips 2 are all light-transmitting film strips 201 .
[0067] The light-transmitting film strip 201 includes a resin and a radiation cooling body dispersed in the resin, and the radiation cooling body is SiO with a particle size of 10 microns. 2 , the mass ratio of the radiant cooling body to the resin is 2:99, and the thickness of the light-transmitting film strip 201 is 100 microns.
[0068] Perkin Elmer, Lambda 950 UV / Vis / NIR Spectrometer was used to test the visible light transmittance of the light-transmitting film strip 201, and to test the heat absorptivity of the radiation cooling curtain in the wavelength range of 300nm to 2500nm. A SOC-100 Hemispherical Directional Reflectometer is used to test the emissivity of the light-transmitting film strip 201 at a wavelength of 7-14 μm. The test results are: the emis...
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