Apparatus for solar thermal collection and system of the same

Abstract

One embodiment of the present invention discloses an apparatus for solar-thermal collection. The apparatus includes a thermal resistance body; a solar-thermal converter disposed inside the thermal resistance body, wherein the volume of the solar-thermal converter is less than that of the thermal resistance body, so that a space exists between the inner wall of the thermal resistance body and the outer wall of the solar-thermal converter; and at least one opening disposed on the wall of the thermal resistance body, wherein the opening is a through hole only on the wall of the thermal resistance body

What is claimed is: 
     
         1 . A solar-thermal collection apparatus, comprising:
 a thermal resistance body;   a solar-thermal converter positioned in the thermal resistance body, wherein the volume of the solar-thermal converter is less than the volume of the thermal resistance body, and therefore a space exists between the inner wall of the thermal resistance body and the outer wall of the solar-thermal converter; and   at least one opening situated on the thermal resistance body, wherein the opening only penetrates the thermal resistance body.   
     
     
         2 . The solar-thermal collection apparatus of  claim 1 , wherein the inner wall of the thermal resistance body further comprises a high-reflection coating comprising metal, transition metal, or the alloy thereof. 
     
     
         3 . The solar-thermal collection apparatus of  claim 1 , wherein the outer wall of the solar-thermal converter comprises a high-absorption coating, and the absorption rate of the high-absorption coating is greater than 30 percent. 
     
     
         4 . The solar-thermal collection apparatus of  claim 3 , wherein the high-absorption coating comprises:
 a major body selected from the group consisting of graphite, carbon black, dark color metal compound, dark color metalorganic compound, and the combination thereof; and   dopant selected from the group consisting of metal nanoparticles, transition metal nanoparticles, and the combination thereof;   wherein the major body and the dopant are mixed with any arbitrary ratio.   
     
     
         5 . The solar-thermal collection apparatus of  claim 4 , wherein the size of the metal nanoparticles and the size of the metalorganic nanoparticles are within a range of from 1 nm to 100 nm. 
     
     
         6 . The solar-thermal collection apparatus of  claim 3 , wherein the high-absorption coating comprises a planar structure or a stereoscopic microstructure. 
     
     
         7 . The solar-thermal collection apparatus of  claim 1 , wherein the solar-thermal converter comprises materials with high thermal conductivity, and the materials comprise metal, transition metal, carbonaceous materials, or the alloy thereof. 
     
     
         8 . The solar-thermal collection apparatus of  claim 1 , wherein the shape of the opening comprises rectangle, circle, square, triangle, or polygons. 
     
     
         9 . The solar-thermal collection apparatus of  claim 8 , wherein the opening is further connected to a light collection apparatus, and the light collection apparatus comprises condensers, reflective mirrors, cone-shaped light collectors, and the combination thereof. 
     
     
         10 . The solar-thermal collection apparatus of  claim 8 , wherein the opening is further connected to a light collection apparatus, and the light collection apparatus comprises a waveguide, a microstructure layer, a condenser, and an optical fiber. 
     
     
         11 . The solar-thermal collection apparatus of  claim 6 , wherein the microstructure of the high-absorption coating is a plurality of tetrahedrons. 
     
     
         12 . The solar-thermal collection apparatus of  claim 6 , wherein the microstructure surface further comprises a high-absorption coating formed by electrical plating or anodic treatment. 
     
     
         13 . The solar-thermal collection apparatus of  claim 1 , further comprising at least one cover configured to seal the thermal resistance body and the solar-thermal converter. 
     
     
         14 . The solar-thermal collection apparatus of  claim 1 , wherein the solar-thermal converter comprises a depressurization apparatus. 
     
     
         15 . A solar-thermal collection system, comprising;
 a solar-thermal collection apparatus, comprising:
 a thermal resistance body; 
 a solar-thermal converter positioned in the thermal resistance body, wherein the volume of the solar-thermal converter is less than the volume of the thermal resistance body, so that a space exists between the inner wall of the thermal resistance body and the outer wall of the solar-thermal converter; and 
 at least one opening situated on the thermal resistance body, wherein the opening only penetrates the thermal resistance body; and 
   a light collection system positioned outside of the opening and configured to collect the light to the focal point of the light collection system.   
     
     
         16 . The solar-thermal collection system of  claim 15 , wherein the inner wall of the thermal resistance body further comprises a high-reflection coating comprising metal, transition metal, or the alloy thereof. 
     
     
         17 . The solar-thermal collection system of  claim 16 , wherein the outer wall of the solar-thermal converter comprises a high-absorption coating, and the absorption rate of the high-absorption coating is greater than 30 percent. 
     
     
         18 . The solar-thermal collection system of  claim 17 , wherein the high-absorption coating comprises:
 major body selected from the group consisting of graphite, carbon black, dark color metal compound, dark color metalorganic compound, and the combination thereof; and   dopant selected from the group consisting of metal nanoparticles, transition metal nanoparticles, and the combination thereof;   wherein the major body and the dopant are mixed with any arbitrary ratio.   
     
     
         19 . The solar-thermal collection system of  claim 18 , wherein the size of the metal nanoparticles and the size of the metalorganic nanoparticles are within a range of from 1 nm to 100 nm. 
     
     
         20 . The solar-thermal collection system of  claim 17 , wherein the high-absorption coating comprises a planar structure or a stereoscopic microstructure. 
     
     
         21 . The solar-thermal collection system of  claim 15 , wherein the solar-thermal converter comprises materials with high thermal conductivity, and the materials comprise metal, transition metal, carbonaceous materials, or the alloy thereof. 
     
     
         22 . The solar-thermal collection system of  claim 15 , wherein the shape of the opening comprises rectangle, circle, square, triangle, or polygons. 
     
     
         23 . The solar-thermal collection system of  claim 15 , wherein the light collection system comprises condensers, reflective mirrors, cone-shaped light collectors, Fresnel lenses, or the combination thereof. 
     
     
         24 . The solar-thermal collection system of  claim 15 , wherein the light collection system comprises a waveguide, a microstructure layer, a condenser, a Fresnel lens, or the combination thereof. 
     
     
         25 . The solar-thermal collection system of  claim 15 , wherein the focal point of the light collection system is positioned at the opening. 
     
     
         26 . The solar-thermal collection system of  claim 15 , further comprising at least one cover configured to seal the thermal resistance body and the solar-thermal converter. 
     
     
         27 . The solar-thermal collection system of  claim 15 , wherein the solar-thermal converter comprises a depressurization apparatus.