| 摘要 |
A concentrating solar plant with linear collectors comprising a reflector for reflecting and concentrating solar radiations along a concentration line; a receiver tube positioned along said concentration line, heated by said solar radiations. Said receiver tube comprises an absorber tube in which a heat transfer fluid flows, preferably of the gaseous type, and has a first portion of the mantle facing the sun and a second portion opposite to the first portion. Said absorber tube is made of a metallic material and comprises at least one septum made of a metallic material, positioned longitudinally inside said absorber tube and constrained to it so as to form a thermal contact between said first and second portion of the mantle. Alternatively, said concentrating solar plant with linear collectors comprises an absorber tube having a monolithic structure made of a metallic material comprising, in its interior, a plurality of longitudinal channels having a transversal form and arranged so as to form at least one communication area between said first and second portions of the mantle which extends along the whole length of the absorber tube. |
