TUBULAR HEAT EXCHANGER, IN PARTICULAR RECEIVING TUBE OF A CONCENTRATING SOLAR PLANT

摘要

The present invention concerns a tubular heat exchanger ( 10 ) between a source of radiant heat located externally with respect to said tubular heat exchanger ( 10 ) and a heat-carrying fluid flowing inside the exchanger, the radiant heat coming from said source being concentrated on a longitudinal portion of the external surface of said tubular heat exchanger, comprising means ( 11 ) for reducing the temperature gradient along the cross section of the walls of the tubular heat exchanger.