Colector solar con una primera disposicion de concentrador que comprende una primera trayectoria de radiacion con un area de linea focal para cambiar radiacion solar incidente sobre esta dentro de un intervalo operativo y con una disposicion de absorbente para radiacion concentrada, donde la primera disposicion de concentrador comprende varias secciones de concentrador y una segunda disposicion de concentrador se proporciona con varias filas de concentradores adicionales

摘要

The invention relates to a trough collector having a focal area and an absorber tube arranged in the focal area, said absorber tube having an insulating area that extends from its outer surface to the inside, enclosing preferably a transport channel that runs through the absorber tube along its length and carries a heat-transporting medium, and is penetrated by at least one thermal opening that extends radially from the outside through the insulating area to the transport channel. According to the invention, the at least one thermal opening comprises a constriction for radiation passing through it, the focal area being located in the constriction.