Abstract: A solar absorber body for a concentrating solar power system, said solar absorber body including: a tube, designed to contain a heat transfer medium and including a first part designed to be exposed to the sunlight and a second part designed to be unexposed to the sunlight, an assembly of fins made of thermally conductive material, and a selective coating arranged at least on the outer surface of the first part of the tube, said assembly of fins defining at least two longitudinal passages inside the tube, said passages being adjacent in a sectional plane perpendicular to the longitudinal axis of the tube, said assembly of fins being configured to create a continuous thermal bridge inside the tube from at least a portion of the inner surface of first part of the tube to at least a portion of the inner surface of the second part of the tube.

Abstract: A solar receiver with a longitudinal axis, including an absorber, a beam extending over an entire length of the solar receiver and configured to suspend the receiver in the power plant, a protective envelope mounted around the beam and including a thermal insulator surrounding the beam, the protective envelope configured to protect the beam from heating due to solar flux, the beam and the protective envelope configured to slide one with respect to the other along the longitudinal axis.

Abstract: A solar absorber body for a concentrating solar power system, said solar absorber body including: a tube, designed to contain a heat transfer medium and including a first part designed to be exposed to the sunlight and a second part designed to be unexposed to the sunlight, an assembly of fins made of thermally conductive material, and a selective coating arranged at least on the outer surface of the first part of the tube, said assembly of fins defining at least two longitudinal passages inside the tube, said passages being adjacent in a sectional plane perpendicular to the longitudinal axis of the tube, said assembly of fins being configured to create a continuous thermal bridge inside the tube from at least a portion of the inner surface of first part of the tube to at least a portion of the inner surface of the second part of the tube.

Abstract: A receiver module for a solar power station receiver, including a metal structure and an absorber module, the metal structure defining a cavity extending along a longitudinal axis in a base of which the absorber module is housed. The cavity includes an aperture configured to be aligned towards at least one mirror of the solar power station, the aperture is edged by two side portions of the metal structure extending longitudinally on either side of the cavity. The receiver module also includes thermocouples positioned on each of the side portions relative to the longitudinal axis to detect a temperature difference between a reference temperature and two points of the metal structure that are opposite relative to the longitudinal axis.

Abstract: Heat storage tank comprising an envelope (2) with a longitudinal axis (X) filled with a heat transfer liquid and solid heat storage elements, a first longitudinal end provided with first means (10) for collecting and supplying a liquid at a first temperature and a second longitudinal end provided with second means (12) for collecting and supplying a liquid at a second temperature, in which said solid heat storage elements are distributed across three beds (TH1, TH2 and TH3) superposed along the longitudinal axis (X), separated by a layer of liquid (L1, L2 and L3), the heat transfer liquid being capable of flowing from the first longitudinal end to the second longitudinal end.

Abstract: Method for filling a heat storage tank with solid elements having at least one first particle size greater than at least one second particle size, the method includingthe following steps: a) pouring a first quantity of solid elements of the first particle size into the tank, b) levelling said first quantity of solid elements of the first particle size so as to form a layer of a substantially constant height, c) pouring a second given quantity of solid elements of the second particle size over the layer of solid elements of the first particle size such that the solid elements of the second particle size flow between the solid elements of the first particle size and such that the elements of the second particle size are flush with the layer of the solid elements of the first particle size and so as to form an intermediate layer.

Abstract: A solar receiver with a longitudinal axis, including an absorber, a beam extending over an entire length of the solar receiver and configured to suspend the receiver in the power plant, a protective envelope mounted around the beam and including a thermal insulator surrounding the beam, the protective envelope configured to protect the beam from heating due to solar flux, the beam and the protective envelope configured to slide one with respect to the other along the longitudinal axis.

Abstract: A receiver module for a solar power station receiver, including a metal structure and an absorber module, the metal structure defining a cavity extending along a longitudinal axis in a base of which the absorber module is housed. The cavity includes an aperture configured to be aligned towards at least one mirror of the solar power station, the aperture is edged by two side portions of the metal structure extending longitudinally on either side of the cavity. The receiver module also includes thermocouples positioned on each of the side portions relative to the longitudinal axis to detect a temperature difference between a reference temperature and two points of the metal structure that are opposite relative to the longitudinal axis.

Abstract: An absorber for a solar receiver with a casing of lengthways axis including at a first lengthways end, a collector to supply a heat transfer fluid; and at a second lengthways end, a collector for evacuating the heat transfer fluid. The casing includes a first wall having a face intended to be subjected to a luminous flux, a second wall facing the first wall, and side walls connecting said the first and second walls. The casing is formed by at least one rib extending lengthways, and attached to the first and to the second wall. The at least one rib includes windows, and deflectors associated with the windows. The deflectors cause a portion of the heat transfer fluid to flow through the windows, causing reblending of the heat transfer fluid.

Abstract: The invention relates to a heat exchanger comprising a supercritical carbon-dioxide circuit comprising a plurality of tubes (1). The heat exchanger is original in that at least one section of the tubes (1) have surface irregularities (3) on their inner surface. These irregularities (3) are located within a zone (6) extending as far as a point located at a distance from the inlet (7) of the tube of maximum 400 times the diameter of the tube.

Abstract: The invention relates to a heat exchanger comprising a supercritical carbon-dioxide circuit comprising a plurality of tubes (1). The heat exchanger is original in that at least one section of the tubes (1) have surface irregularities (3) on their inner surface. These irregularities (3) are located within a zone (6) extending as far as a point located at a distance from the inlet (7) of the tube of maximum 400 times the diameter of the tube.