Abstract: A device for concentrating solar radiation (4) with longitudinal mirrors (7) and a longitudinal receiver (1), has mirrors with a circular cross-section with a radius of curvature that is twice the transverse distance from the center (35) of each mirror to the central point (3) of the receiver. The width of the receiver is 1% of the transverse distance from the central point to the center (89) of the furthest mirror (32). The width of each mirror is determined according to the drift of the rays reflected when the mirror focuses the sun, prescribing an equal width for all mirrors, which is: equal to the width of the active face (2) of the receiver when mounted according to the meridian; and triple the width of the active face (2) of the receiver when mounted according to the parallel of latitude. The mirrors are installed in a contiguous manner and the receiver is installed at a height on columns (8).

Abstract: A receiver for a solar power plant with mirrors (7) and horizontal longitudinal receivers (1) includes a rotating shaft and axis of symmetry which (14) are parallel to a longitudinal axis of the radiation receiver. The receiver is formed by a balanced expansion and pressure collector, the tubes (19) of which are grouped in a separate central bundle (20) and adjacent bundles (21 and 22), thermally insulated from one another longitudinally. Heat transfer fluid circulates first through both adjacent bundles in parallel, to then be injected into the central bundle, where the radiation intensity received is greater because of receiving the radiation from the array of mirrors focused on the midline of the active face (2) of the receiver, each bundle of tubes being able to be covered by a separate (60, 61, 62) transparent window (28).

Abstract: A device for concentrating solar radiation (4) with longitudinal mirrors (7) and a longitudinal receiver (1), has mirrors with a circular cross-section with a radius of curvature that is twice the transverse distance from the centre (35) of each mirror to the central point (3) of the receiver. The width of the receiver is 1% of the transverse distance from the central point to the centre (89) of the furthest mirror (32). The width of each mirror is determined according to the drift of the rays reflected when the mirror focuses the sun, prescribing an equal width for all mirrors, which is: equal to the width of the active face (2) of the receiver when mounted according to the meridian; and triple the width of the active face (2) of the receiver when mounted according to the parallel of latitude. The mirrors are installed in a contiguous manner and the receiver is installed at a height on columns (8).