Nanofluid for thermodynamic solar system

Abstract

Solar concentration system with thermo-vector fluid made up of gas-based nanofluids and with suitably shaped receiver element of the solar radiation.

1 . Solar concentration system comprising a solar concentrator mirror ( 1 ) with a receiver element ( 2 ) in its focal position wherein the heat transfer fluid flowing inside said receiver element ( 2 ) is made up of a gas-based nanofluid ( 3 ). 
     
     
         2 . Solar concentration system according to  claim 1 , wherein said heat transfer fluid ( 3 ) is a mixture of gas consisting of a base fluid selected from the group consisting of air, nitrogen or other gas, and nanoparticles dispersed in it. 
     
     
         3 . Solar concentration system according to  claim 1 , wherein said receiver element ( 2 ) is made up of a plurality of glassed cylindrical ducts, concentric between each other ( 5 ,  6 ,  7 ), between which it is interposed a transparent insulating material or it is realized the vacuum. 
     
     
         4 . Solar concentration system according to  claim 1 , wherein said receiver element ( 2 ) is provided with a transparent optic window ( 9 ) for the absorption of the direct solar radiation ( 4 ) by the nanofluid ( 3 ). 
     
     
         5 . Solar concentration system according to  claim 1 , wherein said receiver element ( 2 ) is thermally insulated by means of an insulating material layer ( 8 ). 
     
     
         6 . Thermodynamic solar plant using the solar concentration system according to  claim 1 . 
     
     
         7 . Solar tower thermodynamic solar plant using the solar concentration system according to  claim 1 .