Solar photo-thermal conversion element and processing method thereof
A light-to-heat conversion and processing method technology, applied in the field of solar energy conversion, can solve problems such as safety threats, deterioration of heat transfer performance, system power equipment blockage, etc., and achieve the effects of avoiding agglomeration, strong operability, and low cost
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[0027] figure 2 It is a schematic diagram of the preparation method and preparation principle of solar photothermal conversion components of the present invention. Its preparation process mainly includes two steps: first, as figure 2 a, the metal particles 8 are dispersed in the solution 10 by means of ultrasonic vibration to form a nanofluid 11 and contained in a container 12 . A bundle of transparent tubes 6 bundled with bands 7 is soaked in the nanofluid 11 contained in the container 12 . Then, if figure 2 b. Put the bundle of transparent tubes 6 soaked in the nanofluid 11 into the sintering furnace 13, heat at a high temperature sequentially, keep warm for a certain period of time, and then cool down to room temperature. Preferably, the temperature of the sintering furnace is raised to 650 degrees Celsius in 30 minutes, kept at a temperature of 1 hour, and then naturally cooled to room temperature. Preferably, the size of the metal particle 8 is on the order of nano...
Embodiment 1
[0031] Two specifications of quartz glass tubes were used for the transparent tube: one with an inner diameter of 2.5 mm and an outer diameter of 3 mm; the other with an inner diameter of 1.6 mm and an outer diameter of 2 mm. The quartz glass tubes are all 0.6 meters long, and the two kinds of quartz glass tubes are bundled into bundles, with 1000 glass tubes in each bundle. The glass tube bundle is placed in a container containing the nanofluid and soaked for 10 minutes, so that the gap between the quartz glass tube bundles is filled with the nanofluid. The nanofluid is prepared by ultrasonically dispersing ellipsoidal gold nanoparticles in n-hexane solution. Ellipsoidal gold nanoparticles have a long axis of 50 nm and a short axis of 30 nm. The mass concentration of gold nanoparticles in the nanofluid is 0.05%.
[0032] The quartz glass tube bundle immersed in the nanofluid is pulled out from the container and placed in a sintering furnace. The sintering furnace was heate...
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