A heating device for heating a gas stream is proposed, the heating device comprising two electric connection elements (43, 44) for being connected to a power source and at least one heating plate unit (39A, 39B, 39C, 39D, 39E) having an inlet side and an outlet side, which comprises a plurality of heating plate strips (45, 46) which are in the gas stream and each have a first end area and a second end area, adjacent heating plate strips (45, 46) being connected to each other in the first end areas and the second end areas each via a conductive spacer structure (47).
F24H 3/04 - Appareils de chauffage d'air à circulation forcée l'air étant en contact direct avec l'agent chauffant, p.ex. élément chauffant électrique
F24H 7/04 - Appareils de chauffage à accumulation, c. à d. dans lesquels l'énergie est emmagasinée sous forme de chaleur dans des matériaux accumulateurs en vue d'une restitution ultérieure la chaleur dégagée étant transmise à un fluide transporteur avec circulation forcée du fluide transporteur
F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en général; Appareils échangeurs de chaleur de régénération non couverts par les groupes ou
F28D 17/02 - Appareils échangeurs de chaleur de régénération dans lesquels un agent ou une masse intermédiaire immobile de transfert de chaleur est mis en contact successivement avec chacune des sources de potentiel calorifique, p.ex. en utilisant des particules utilisant des masses rigides, p.ex. d'un matériau poreux
F28D 17/04 - Dispositions de répartition des sources de potentiel calorifique
2.
HEATING DEVICE, HEATING SYSTEM, HEAT STORAGE DEVICE AND HEAT STORAGE SYSTEM
The invention relates to a heating device for heating a gas flow, comprising two electrical connection elements (43, 44) for connection to a power source, and at least one heating plate unit (39A, 39B, 39C, 39D, 39E) with an inflow side and an outflow side, which comprises a plurality of heating plate strips (45, 46) lying in the gas flow and each having a first end region and a second end region, wherein adjacent heating plate strips (45, 46) in the first end regions and the second end regions are interconnected via a conductive spacer structure (47).
F01K 3/00 - Ensembles fonctionnels caractérisés par l'emploi d'accumulateurs de vapeur ou de chaleur ou bien de réchauffeurs intermédiaires de vapeur
F24H 3/04 - Appareils de chauffage d'air à circulation forcée l'air étant en contact direct avec l'agent chauffant, p.ex. élément chauffant électrique
F24H 7/04 - Appareils de chauffage à accumulation, c. à d. dans lesquels l'énergie est emmagasinée sous forme de chaleur dans des matériaux accumulateurs en vue d'une restitution ultérieure la chaleur dégagée étant transmise à un fluide transporteur avec circulation forcée du fluide transporteur
F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en général; Appareils échangeurs de chaleur de régénération non couverts par les groupes ou
H05B 3/24 - Eléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p.ex. plaques chauffantes non flexibles le conducteur chauffant étant autoportant
F28D 17/02 - Appareils échangeurs de chaleur de régénération dans lesquels un agent ou une masse intermédiaire immobile de transfert de chaleur est mis en contact successivement avec chacune des sources de potentiel calorifique, p.ex. en utilisant des particules utilisant des masses rigides, p.ex. d'un matériau poreux
F28D 17/04 - Dispositions de répartition des sources de potentiel calorifique
3.
HEAT STORAGE DEVICE, HEAT STORAGE SYSTEM AND METHOD FOR OPERATING A HEAT STORAGE DEVICE
The invention relates to a heat storage device (1), a heat storage system (15) having at least one heat storage device (1) and a method for operating a heat storage device (1).
Proposed is a concentrator (1) comprising a plurality of strip-type reflectors (2, 3, 4, 5, 6, 7) which each have a light-reflective surface that is curved along the longitudinal extent (L) of same, said reflectors (2, 3, 4, 5, 6, 7) having tilting axes (8, 9, 10), about which the reflectors (2, 3, 4, 5, 6, 7) are rotationally disposed, longitudinally adjacent to one another, on at least one common axis (11) which connects the tilting axes (8, 9, 10) of the reflectors (2, 3, 4, 5, 6, 7), said tilting axes (8, 9, 10) being orthogonal to the common axis (11), and wherein a rotation of the reflectors (2, 3, 4, 5, 6, 7), starting from a midpoint (13) of the common axis (11), is greater the more remote the reflectors (2, 3, 4, 5, 6, 7) are from the midpoint (13) of the common axis (11).
F24S 23/71 - Agencements pour concentrer les rayons solaires pour les collecteurs de chaleur solaire avec des réflecteurs avec des surfaces réfléchissantes paraboliques
The invention relates to an absorber module for a receiver of a solar energy harvesting system, comprising an absorber head (12) that includes an inlet portion (13) and an outlet portion (14), wherein the absorber head (12) accommodates an absorber element (16), and the inlet portion (13) extends into the outlet portion (14). At least part of the absorber head (12) is double-walled, the absorber head (12) comprising an inner wall (10a) and an outer wall (10b) which enclose a cavity (18).
F24S 10/80 - Collecteurs de chaleur solaire utilisant des fluides vecteurs comportant du matériau poreux ou une masse perméable en contact direct avec les fluides vecteurs
F24S 20/20 - Collecteurs de chaleur solaire pour recevoir de l’énergie solaire concentrée, p.ex. récepteurs pour centrales électriques solaires
The invention relates to a receiver of a solar energy recovery plant (100), comprising a support structure (7), which carries a plurality of absorber modules (11) on a receiver front side, each comprising a retaining tube (21), which engages in a guide tube (41) of the support structure (7) such that a ring gap (50) is formed between the retaining tube (21) and the guide tube (41), through which return air flows to the receiver front side during operation in order to cool the support structure (7) and/or the affected absorber module (11). At least one throttling return air aperture (43) is arranged in at least one of the ring gaps (50), which defines a mass flow of the return air flowing through the affected ring gap (50) to the receiver front side.
F24S 40/52 - Prévention de la surchauffe ou de la surpression en modifiant la collecte de chaleur, p.ex. par la défocalisation ou en changeant la position des éléments récepteurs de chaleur
F24S 20/20 - Collecteurs de chaleur solaire pour recevoir de l’énergie solaire concentrée, p.ex. récepteurs pour centrales électriques solaires
A solar thermal plant is proposed, comprising a receiver unit (16) and a heliostat array (14), in which a multiplicity of heliostats (12) are arranged, distributed over a number of sectors (50A to 50G, 58A to 58F), which comprise sectors of a circle (50A to 50G), which respectively comprise rows (52) of heliostats (12) arranged along parallel lines. The normal to the line of one sector of a circle (50A to 50G) is set with respect to the normal to the line of every other sector of a circle (50A to 50G) and the sectors of a circle (50A to 50G) respectively have a receiver-near portion (54), in which the sectors of a circle (50A to 50G) are arranged adjacent to one another, and a receiver-remote portion (56). Respectively arranged between two sectors of a circle (50A to 50G) in the region of the receiver-remote portions (56) thereof there is at least one intermediate sector (58A to 58F), in which heliostats (12) are arranged in rows (59) along parallel lines of which the normal is set with respect to the normals of all the other sectors of a circle (50A to 50G).
The invention relates to a solar receiver unit, comprising a basic construction (54) having at least one exposure side on which a receiver (20) for solar radiation which is reflected by heliostats (12) is arranged, wherein the receiver (20) is delimited laterally, at least substantially around its periphery, by a radiation protection device (52) which comprises a carrier arrangement (62) which is fastened to the building construction (54) and on which are fastened insulating material panels (56) which each have a base plate (78) on which insulating material (88) is arranged.
DEUTSCHES ZENTRUM FÜR LUFT- UND RAUMFAHRT E.V. (Allemagne)
KRAFTANLAGEN MÜNCHEN GMBH (Allemagne)
Inventeur(s)
Hoffschmidt, Bernhard
Koll, Gerrit
Abrégé
The invention relates to a high-temperature receiver for solar power stations, especially for heliostat power stations, with air as a heat transfer medium. The receiver has a supporting structure (14), which bears a number of rows of receiver modules (13) that use absorber elements (36) to capture the solar radiation. The absorber elements take in outside air and discharge it as hot air (25) through hot-air tubes (24). To cool the hot-air tubes (24), cooling jackets (26) are provided inside the hollow space (15). The cooling is performed using returned air that generally still contains residual heat. This is blown out from outlet nozzles (41), which are arranged before the front sides (36a) of the adjacent absorber modules, and so the returned air that is expelled is taken in by a number of absorber modules. As a result, energy losses are largely avoided and a high level of efficiency is achieved.
The invention relates to a heat store (1) having at least one storage element (3) comprising molded stones (4) made of ceramic layered on top of each other, substantially disposed in a wall composite (13), wherein each molded stone (4) comprises a substantially rectangular and/or triangular cross section, at least some of the molded stones (4) particularly comprise feet (17) reducing heat transfer from one molded stone (4) to another molded stone (4), said feet being provided in the corners of the molded stone (4) and formed by machining away the molded stone (4) at the lower end thereof, wherein a transverse flow chamber (14) having a circular cross-section and having lateral overflow openings (27) is simultaneously formed by machining, and the overflow openings (27) interact with overflow openings (27) of further molded stones (4) for increasing the transverse flow chamber (14) across a plurality of adjacently disposed molded stones (4).
F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en général; Appareils échangeurs de chaleur de régénération non couverts par les groupes ou
F28D 17/02 - Appareils échangeurs de chaleur de régénération dans lesquels un agent ou une masse intermédiaire immobile de transfert de chaleur est mis en contact successivement avec chacune des sources de potentiel calorifique, p.ex. en utilisant des particules utilisant des masses rigides, p.ex. d'un matériau poreux
F27D 1/04 - Carcasses; Garnissages; Parois; Voûtes caractérisés par la forme des briques ou des blocs utilisés
brevets
