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: Solid oxide fuel cell that comprises a cell core and a thermal exchanger suitable for supplying said cell core with a fluid at a given temperature required for its operation, wherein the exchanger comprises a cold fluid circuit and provides a thermal interface with a hot fluid circuit, the cold fluid circuit supplying the fluid inlet of the cell core and the hot fluid circuit being supplied by the fluid outlet of the cell core, characterized in that the thermal exchanger is provided concentrically relative to the cell core.

Abstract: A heat regenerator comprising at least one matrix made of a refractory material, to ensure the storage and recovery of heat. The matrix includes at least one through-channel capable of enabling the circulation of a fluid, said channel comprising at least two projections projecting into the space defined by said channel, said projections being positioned on two opposite surfaces of the channel.

Abstract: Embodiments of the present invention relate generally to improved cooling systems and methods for use on aircraft trolleys and compartments. The systems use absorptive cooling with thermal conductive plates strategically positioned in order to keep trolleys and their contents cooled.

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 concerns an energy production unit, of electric energy in particular, comprising a fuel cell (1) and a heat source (2) thermally coupled to the fuel cell (1) at least to allow the rise in temperature of this fuel cell (1). According to the invention, it is provided that the heat source (2) comprises a radiating burner (20), that the fuel cell (1) is confined within a thermal insulation enclosure itself heated by the combustion gases (F) derived from the burner (20), and that this unit also comprises temperature regulation means (4) capable of controlling, from around 200° C. to at least 800° C., the temperature of the combustion gases (F) heating the enclosure 3.

Abstract: Solid oxide fuel cell that comprises a cell core and a thermal exchanger suitable for supplying said cell core with a fluid at a given temperature required for its operation, wherein the exchanger comprises a cold fluid circuit and provides a thermal interface with a hot fluid circuit, the cold fluid circuit supplying the fluid inlet of the cell core and the hot fluid circuit being supplied by the fluid outlet of the cell core, characterized in that the thermal exchanger is provided concentrically relative to the cell core.

Abstract: The invention concerns an energy production unit, of electric energy in particular, comprising a fuel cell (1) and a heat source (2) thermally coupled to the fuel cell (1) at least to allow the rise in temperature of this fuel cell (1). According to the invention, it is provided that the heat source (2) comprises a radiating burner (20), that the fuel cell (1) is confined within a thermal insulation enclosure itself heated by the combustion gases (F) derived from the burner (20), and that this unit also comprises temperature regulation means (4) capable of controlling, from around 200° C. to at least 800° C., the temperature of the combustion gases (F) heating the enclosure 3.