| 摘要 |
The present invention relates to a natural circulation solar system (100; 200) integrated within a solar collector providing a containment box structure (1), having a lower face, four perimeter faces and an upper face closed by a transparent surface (12), within said containment box structure (1) the following elements being housed: an upper absorber (5, 13), to be exposed to solar irradiation, provided under said transparent surface (12), an accumulation and natural circulation circuit (21) of a primary thermal carrier fluid, at least a secondary abduction, withdrawal and natural circulation conduct (22), of a secondary fluid, and at least a heat exchanger (8) for exchanging heat between said primary heat carrier fluid and said secondary fluid, said at least a secondary conduct (22) comprising at least an inlet opening (23) and an outlet opening (24) of said secondary fluid that can be reached from outside said containment box structure (1), said primary circuit (21) providing at least a first portion (5), thermally communicating with said upper absorber (13), and at least a second portion (9) thermally communicating with said at least a secondary conduct (22) in correspondence of said thermal exchanger (8), and an insulating material layer (14) being provided between at least a first portion (5) of said primary circuit (21) and said at least a secondary conduct (22) so that, when said primary heat carrier fluid flows by natural circulation within said primary circuit (21), said primary heath carrier fluid and said secondary fluid circulate with a counter-current circulation within said heat exchanger (8). The invention further relates to a solar collector (100; 200) system (300) connected in series and/or in parallel. |
